JAEA-Evaluation
2018-003
DOI:10.11484/jaea-evaluation-2018-003

平成30年度研究開発・評価報告書

評価課題「先端原子力科学研究」（中間評価）
Assessment Report on Research and Development Activities in FY2018
Activity: "Advanced Science Research" (Interim Report)
先端基礎研究センター
Advanced Science Research Center

原子力科学研究部門
原子力科学研究所
Nuclear Science Research InstituteSector of Nuclear Science Research

March 2019Japan Atomic Energy Agency

日本原子力研究開発機構

本レポートは国立研究開発法人日本原子力研究開発機構が不定期に発行する成果報告書です。
本レポートの入手並びに著作権利用に関するお問い合わせは、下記あてにお問い合わせ下さい。
なお、本レポートの全文は日本原子力研究開発機構ホームページ（https://www.jaea.go.jp）
より発信されています。
国立研究開発法人日本原子力研究開発機構 研究連携成果展開部 研究成果管理課〒319-1195 茨城県那珂郡東海村大字白方 2 番地4
電話 029-282-6387, Fax 029-282-5920, E-mail:ird-support@jaea.go.jp
This report is issued irregularly by Japan Atomic Energy Agency.
Inquiries about availability and/or copyright of this report should be addressed toInstitutional Repository Section,
Intellectual Resources Management and R&D Collaboration Department,
Japan Atomic Energy Agency.
2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195 Japan
Tel +81-29-282-6387, Fax +81-29-282-5920, E-mail:ird-support@jaea.go.jp© Japan Atomic Energy Agency, 2019

JAEA-Evaluation 2018-003

平成 30 年度 研究開発・評価報告書
評価課題「先端原子力科学研究」（中間評価）
日本原子力研究開発機構
原子力科学研究部門 原子力科学研究所
先端基礎研究センター（2018 年 12 月 26 日 受理）

国立研究開発法人日本原子力研究開発機構（以下、「原子力機構」という）は、「国の研究開発
評価に関する大綱的指針」（平成 28 年 12 月 21 日内閣総理大臣決定）及びこの大綱的指針を受けて作成された「文部科学省における研究及び開発に関する評価指針」（平成 29 年 4 月 1 日文部科学大臣決定）、並びに原子力機構の「研究開発課題評価実施規程」（平成 17 年 10 月 1 日制定）等に基づき、平成 30 年 10 月 9 日に第三期中長期計画に対する中間評価を先端基礎研究・評価委員会に諮問した。
これを受けて、先端基礎研究・評価委員会は、委員会において定められた評価方法に従い、原子力機構から提出された先端基礎研究センターの運営及び先端原子力科学研究の実施に関する説
明資料の検討及び先端基礎研究センター長並びに研究グループリーダーによる口頭発表と質疑応答を実施した。
本報告書は、先端基礎研究・評価委員会より提出された中間評価の内容をまとめるとともに、「評価結果（答申書）」を添付したものである。

本報告書は、研究開発・評価委員会（先端基礎研究・評価委員会）が「国の研究開発評価に関する大綱的指針」等に基づき実施した外部評価の結果を取りまとめたものである。
日本原子力研究開発機構先端基礎研究センター（事務局）
原子力科学研究所：〒319-1195 茨城県那珂郡東海村大字白方 2-4i

JAEA-Evaluation 2018-003

Assessment Report on Research and Development Activities in FY2018
Activity: “Advanced Science Research” (Interim Report)
Advanced Science Research Center
Nuclear Science Research InstituteSector of Nuclear Science Research
Japan Atomic Energy Agency
Tokai-mura, Naka-gun, Ibaraki-ken(Received December 26, 2018)

Japan Atomic Energy Agency (hereinafter referred to as “JAEA”) consulted an assessment committee,“Evaluation Committee of Research Activities for Advanced Science Research” (hereinafter referred to as“Committee”) for interim assessment of “Advanced Science Research”, in accordance with “General
Guideline for the Evaluation of Government Research and Development (R&D) Activities” by Cabinet
Office, Government of Japan, “Guideline for Evaluation of R&D in Ministry of Education, Culture, Sports,
Science and Technology” and “Regulation on Conduct for Evaluation of R&D Activities” by JAEA.
In response to the JAEA’s request, the Committee assessed the research programs and activities of theAdvanced Science Research Center (hereinafter referred to as “ASRC”) for the period of three and half years
from April 2015. The Committee evaluated the management and the research programs of ASRC based on
the explanatory documents prepared by the ASRC and the oral presentations with questions-and-answers by
the Director and the research group leaders.
This report summarizes the results of the assessment by the Committee with the Committee reportattached.

Keyword: Advanced Science ResearchThis evaluation report presents the result of third-party evaluation conducted based on “General Guideline
for the Evaluation of Government R&D Activities” by Japanese Cabinet Office, etc.

ii

JAEA-Evaluation 2018-003

目次
目次
概要·········································································································································· 1 1
1.1. 概要
先端基礎研究・評価委員会の構成···········································
··········································· 3 3
2.2. 先端基礎研究・評価委員会の構成
審議経過·································································
································································· 4 4
3.3. 審議経過
評価方法·································································
································································· 5 5
4.4. 評価方法
中間評価スケジュール·····················································
····················································· 6 6
5.5. 中間評価スケジュール
評価結果（答申書）·······················································
······················································· 7 7
6.6. 評価結果（答申書）
評価委員会の提言に対する原子力機構の措置·································
································· 2323
7.7. 評価委員会の提言に対する原子力機構の措置
付録11中間評価資料（先端基礎研究センター作成）
中間評価資料（先端基礎研究センター作成）·····························
·····························2929
付録
付録22評価結果の意見と助言に対する返答（先端基礎研究センター作成）
評価結果の意見と助言に対する返答（先端基礎研究センター作成）·········
·········
217
付録
217

Contents
Contents
1.1. Summary
Summary·································································································································· 1 1
2.2. Evaluation
EvaluationCommittee
CommitteeofofResearch
ResearchActivities
Activitiesfor
forAdvanced
AdvancedScience
ScienceResearch
Research ···········
··········· 3 3
3.3. Status
Statusofofassessment
assessment························································
························································ 4 4
4.4. Procedure
Procedureofofassessment
assessment ·····················································
····················································· 5 5
5.5. Time
TimeTable
TableofofMid-term
Mid-termReview
ReviewMeeting
Meeting················································································ 6 6
6.6. Results
Resultsofofassessment
assessment(Committee(CommitteeReport)
Report) ·······································
······································· 7 7
7.7. JAEA’s
JAEA’sresponses
responsestotothe
therecommendations
recommendationsbybythe
theEvaluation
EvaluationCommittee
Committee ···············
··············· 2323
Appendix
Appendix1 1 Status
StatusReports
Reportsfor
forMid-term
Mid-termReview
ReviewMeeting
Meeting(owned(ownedbybyASRC)
ASRC) ·············
············· 2929
Appendix
Appendix2 2 Reply
Replyononthe
theComments
Commentsand
andSuggestions
Suggestionsininthe
theEvaluation
EvaluationReport
Report(owned(ownedbybyASRC)
ASRC) ·················································
·················································
217
217

iii

This is a blank page.

JAEA-Evaluation 2018-003

1. 概 要
国立研究開発法人日本原子力研究開発機構（以下、「原子力機構」という）は、「国の研究開発
評価に関する大綱的指針」（平成 28 年 12 月 21 日内閣総理大臣決定）及びこの大綱的指針を受けて作成された「文部科学省における研究及び開発に関する評価指針」（平成 29 年 4 月 1 日文部科学大臣決定）、並びに原子力機構の「研究開発課題評価実施規程」（平成 17 年 10 月 1 日制定）等に基づき、先端基礎研究センター（以下、「センター」または「ASRC」という）の先端原子力科学研究に関する中間評価を先端基礎研究・評価委員会（以下、「委員会」という）に諮問した。
これを受けて、委員会は委員会において定められた評価方法に従い、原子力機構から提出されたセンターの運営、先端原子力科学研究の実施に関する説明資料の検討及び先端基礎研究センター長並びに研究グループリーダー等による口頭発表と質疑応答を実施した。
その結果、諮問された第三期中長期計画期間の中間評価においては、全て『適切』であると評価された。また、概要は、以下のとおり。
（評点：5-特に優れている 4-優れている 3-良い 2-妥
当である 1-要改善）（１）センターの運営（評点：4）・ 8 年間で運営費交付金が 50％以上減少していることを問題視している。原子力機構全体の予算が厳しいことは理解しているが、僅かな研究予算の増額でも先端基礎研究センターのアク
ティビティが向上し、先端基礎研究センターの役割が発揮されることから、研究予算に対する配慮を強く求めたい。
・ 女性研究者は 2016 年と比較して増加しており、評価したい。多くの女性や海外からの研究者を含めた若手研究者が活躍すれば、研究環境や生活環境が魅力的なものと評価されることか
ら、今後も更に女性、外国人の比率を高めて欲しい。
・ 理論物理研究アクティビティ向上のため、バーチャル組織から先端理論物理研究グループ（仮称）を立ち上げることに賛成する。各グループの理論と実験との連携と同様に、理論研究者同士の連携が可能になるよう組織作りをする必要がある。
・ 先端基礎研究センターの更なる原子力機構内の連携強化を求めたい。原子力機構にある利点をどう生かすのか、どのように原子力機構に貢献できるのかを考えることが重要である。今後の原子力技術や原子力に係わる環境回復、廃棄物処理などの日本や国際社会の主要課題に対し、先端基礎研究センターの目標、ビジョンを明確にすることが望ましい。
（２）重元素核科学研究グループ（評点：5）
原子核モデルの構築に必要な高精密質量測定の実現のために多重反射型飛行時間測定式質量測定器（MR-TOF）の開発に期待したい。タンデム加速器を用いた将来のプロジェクトに積極的に取り組むことを期待する。
（３）界面反応場化学研究グループ（評点：4）
負の原子力遺産を解決するための国際的取り組みを推進する国際学術会議構想は正しい方向
であり、同問題の研究開発を国際協力として取り組む場となることが期待できる。
（４）重元素材料物性研究グループ（評点：4）-1-

JAEA-Evaluation 2018-003

重元素系の凝縮系物理学を進展・応用させるために複数の取り組みをしており、その成果として新材料、新しい電子物性、デブリ評価法開発が期待できる。
（５）スピン－エネルギー変換材料科学研究グループ（評点：5）
スピン流に関連する研究分野は多岐に亘っているが、まとめられた将来計画は非常に重要かつ挑戦的だと考えている。
（６）ナノスケール構造機能材料科学研究グループ（評点：4）
基礎研究と応用のバランスを取って良い成果をあげている。個々のテーマをよりコヒーレン
トにつなげることが期待される。軽元素と重元素を両方活用した人工的な構造による高温超伝導の探索を推進すべきである。
（７）ハドロン原子核物理研究グループ（評点：4.5）
ダブルハイパー核研究や K-pp 系の発見等、特筆すべき成果をあげている。高密度核物質を創り出すことを将来計画としているが、技術的科学的において計画の発展を推奨する。グルー
プ特有の計画を明確に同定することが必要である。
（８）先端理論物理研究グループ（研究成果の発表がなかったので、評点無し）
理論と実験の良好な体制を維持し、異なる分野の交流・共同研究の推進が望まれる。界面反応場、重元素材料、ナノスケールの各グループへの貢献拡大を早急に検討して欲しい。

-2-

JAEA-Evaluation 2018-003

2. 先端基礎研究・評価委員会の構成

委員長 永長 直人

理化学研究所創発物性科学研究センター副センター長
東京大学教授委員

Samuel Bader

Argonne National Laboratory, Argonne Distinguished Fellow, emeritus

Sue Clark

Pacific Northwest National Laboratory, Battelle Fellow and Professor

延與 秀人

理化学研究所仁科加速器科学研究センター長

Claudia Felser

Max-Planck-Institut für chemische Physik fester stoffe, Director and Professor

家 泰弘

日本学術振興会理事
東京大学名誉教授

Andreas Türler

Departement Chemie und Biochemie, Universität Bern, Professor（アルファベット順）-3-

JAEA-Evaluation 2018-003

3. 審議経過（１）第 8 回委員会開催：平成 30 年 10 月 11 日～12 日・先端基礎研究センターの報告と意見交換
・研究グループによる報告と意見交換
・ポスターセッション・評価内容の検討、報告書の作成に関する審議
・先端基礎研究センターの中間評価（２）評価結果のとりまとめ：平成 30 年 10 月中旬～11 月中旬
・各委員による評価結果を委員長が取りまとめ、全員の合意のもと答申書を作成（３）答申：平成 30 年 11 月 16 日

-4-

JAEA-Evaluation 2018-003

4. 評価方法
以下の評価作業手順及び評価項目に従い、先端基礎研究センターより提出された先端基礎研究センターの運営及び先端原子力科学研究の実施に関する説明資料を検討するとともに、先端基礎研究センター長及び各研究グループリーダー等による口頭発表と質疑応答・意見交換を行った。
（１）評価作業手順① 先端基礎研究センターの運営及び事前評価における提言に対する対応について、先端基礎研究センター長による口頭発表及び質疑応答② 各研究グループの事前評価への対応並びに研究進捗状況について、各グループリーダーによる口頭発表及び質疑応答③ 提出資料及び口頭発表に基づき、評価意見を Evaluation Sheet に取り纏めて整理④ 答申書の取り纏め方針の検討（２）評価項目
１）先端基礎研究センターの運営
先端基礎研究センターの運営及び事前評価における提言に対する対応について評価
２）先端原子力科学研究の実施（6 研究グループ、１新グループ）
事前評価への対応並びに研究進捗状況について評価
・重元素核科学研究グループ
・界面反応場化学研究グループ
・ハドロン原子核物理研究グループ
・重元素材料物性研究グループ
・スピン－エネルギー変換材料科学研究グループ
・ナノスケール構造機能材料科学研究グループ
・先端理論物理研究グループ（新グループ）（３）評価の基準
１）先端基礎研究センターの運営
先端基礎研究センターが示した研究方針及び戦略並びに事前評価における提言に対する対応の適否を判断し、評価意見をまとめる。
２）先端原子力科学研究の実施（6 研究グループ、1 新グループ）
各グループの事前評価への対応、並びに研究進捗状況について適否を判断し、科学的視点により、長所及び短所を考慮した具体的な評価意見をまとめる。

-5-

JAEA-Evaluation 2018-003

5. 中間評価スケジュール
平成 30 年 10 月 11 日（木）10：00～10：15

センター長挨拶、理事挨拶
委員長、委員の紹介
諮問事項の説明先端基礎研究センターの運営方針について
10：15～11：00

先端基礎研究センターの運営方針について（発表 20 分＋質疑 25 分）

各研究グループの研究進捗状況、並びに今後の研究計画について（発表 15 分＋質疑 15 分）
11：00～11：30

重元素核科学研究グループ

11：35～12：05

界面反応場化学研究グループ

12：05～13：05

昼食

13：05～13：35

重元素材料物性研究グループ

13：40～14：10

スピン－エネルギー変換材料科学研究グループ

14：15～14：45

ナノスケール構造機能材料科学研究グループ

14：50～15：50

コーヒーブレイク ＆ ポスター発表

15：55～16：25

ハドロン原子核物理研究グループ

16：30～17：00

先端理論物理研究グループ（仮称）平成 30 年 10 月 12 日（金）9：30～11：30

議論のまとめ、報告書の作成について

11：30～12：00

委員会からのコメント

12：30～13：30

センターの今後の取り組み方針について-6-

JAEA-Evaluation 2018-003

6. 評価結果（答申書）
平成 30 年 11 月 16 日
国立研究開発法人 日本原子力研究開発機構
理事長 児玉 敏雄 殿
研究開発・評価委員会（先端基礎研究・評価委員会）
委員長 永長 直人

研究開発課題の評価結果について（答申）
当委員会に諮問〔30 原機（先）003〕のあった下記の研究開発課題の中間評価について、その評価結果を別紙のとおり答申します。
記
研究開発課題「先端原子力科学研究」
以上-7-

JAEA-Evaluation 2018-003（別紙）

Evaluation Report
Evaluation Committee of Advanced Science Research Center
Mid-term Review
Date of the Meeting:

October 11th - 12th, 2018

Submission of the Report: November 16th, 2018
Members:
Name

Title / Institute

BADER, SamuelArgonne Distinguished Fellow, emeritus, Argonne National Laboratory

CLARK, Sue

Battelle Fellow and Professor, Pacific Northwest National Laboratory

EN’YO, Hideto

Director, Nishina Center for Accelerator-Based Science, RIKENFELSER, Claudia

Director and Professor, Max Planck Institute for Chemical Physics of Solids

IYE, Yasuhiro

Executive Director, Japan Society for the Promotion of Science

Professor emeritus, The University of TokyoNAGAOSA, Naoto

Deputy Center Director, Center for Emergent Matter Science, RIKEN(Chair)Professor, The University of TokyoTÜRLER, Andreas

Professor, Department Chemie und Biochemie, Universität Bern

-8-

JAEA-Evaluation 2018-003

The scores below indicate the evaluation as
5. Excellent
4. Very good
3. Good
2. Reasonable
1. To be improved
1. Managements of ASRC
Score: 4
Comments and suggestions
The management of the ASRC has changed recently. Sadamichi Maekawa was an outstanding
scientist and manager, followed by his successor Director General Makoto Oka in April this year.
Prof. Oka continues on the same level, with the same spirit, and with innovative new ideas. First ofall, we highly evaluate these two Director Generals for their operation. The advanced scientificthemes of the ASRC are two-fold: actinide science and nuclear materials science. Each theme has
three groups to address the goals of the theme, while the overall goal is for the ASRC to play a leadingrole within JAEA by providing the basic science underpinnings of the R&D that the agency pursues.
Toward this goal, Prof. Oka put forward the philosophy of “Research First”, which is highly
appreciated.
All the committee members have the concern about the decreasing internal budget from JAEA
during the last eight years by more than 50%. The number of PIs remains the same while the proposal
for the new advanced theoretical physics group will need additional financial support. We strongly
urge the top administration of JAEA to pay attention to these concerns. The operational budget of the
ASRC constitutes only a small fraction of the total budget of JAEA. While we understand the heavypressures on the JAEA overall budget, even a modest increase in the allocation to the ASRC should
be rewarding by boosting fundamental activities and enhancing the role of ASRC as a showcase of
JAEA’s commitment to basic science.
We congratulate the two Director Generals that they succeeded to increase the number of female
researchers in response to our previous report in 2016. However, further effort to increase thepercentage of female members and foreigners in ASRC is recommended. The young researchers,
including the increasing number of female scientists and scientists from abroad, are very happy at the
ASRC, and they rate their scientific and personal environment at the ASRC as excellent. The new
management plans to make the ASRC even more international and to attract and support even moreyoung researchers. As initial evidence, they hired many Takuetsu kenkyuuin's, i.e., 4 from 8
applicants in 2017 and 4 from 7 applicants in 2018, which means that the ASRC is regarded as an-9-

JAEA-Evaluation 2018-003

appealing place for young people. The ASRC also continues its close international collaborations
supported by the REIMEI program, which are also highly fruitful.
It is a good idea to enhance theoretical activities within the ASRC by promoting the existing
virtual Theoretical Physics Institute (TPI) to become the new Advanced Theoretical Physics (ATP)group. This will widen the scope of the individual theorist and pollinate new ideas and collaborations
among different research fields. On the other hand, since collaborations between theory andexperiment in each group have been working quite well, they should continue and not be disrupted.
Thus, the system should be designed to establish the combination of a strong inter-disciplinary theory
group as well as close collaborations between theory and experiment within each group. The
introduction of this new system will enable theorists to stimulate and evaluate each other. It is also an
important issue among the ASRC theorists to be uniquely visible to their outside scientific community.
We suggest Prof. Oka to put more stress on collaborations with other parts of JAEA. Two nuclear
physics groups are working with the Tandem accelerator or J-PARC, but their direction is more orless as users rather than partners of the facilities. Most of the groups look quite independent fromother parts of JAEA. It is advisable to consider why ASRC is in JAEA and what ASRC is contributing
to JAEA. Furthermore, it is desirable to make clear the specific vision and objective statements for
the ASRC that are directly linked to grand challenges for Japan and the international community
specifically related to (i) the impact of nuclear energy and technologies, and (ii) advancing
environmental remediation and waste disposal resulting from nuclear energy and technologies. The
overall objective stated in the review documents could be applied to almost any research enterprisewithin JAEA or within Japan, and the distinguishing vision of the ASRC needs to be more clearlypresented. This will include statements about overall outcomes desired from the research investmentsthat will be achieved in the next two years, the next five years, and the next decade.
2. Research Group for Heavy Element Nuclear Science
Score: 5
Comments and suggestions
This group is aiming at the nuclear and atomic structures in the heaviest elements, including newreaction mechanisms. They have made great achievements in experimental studies on fission of heavy
elements, which is possible only within ASRC and JAEA.
World-class, top-level results obtained by the chemists of the group are the determination of thefirst ionization potentials (IPs) of the heaviest actinides, including Lr. The experimental measurements
were in collaboration with the theoretical chemist, who provided state-of-the-art relativistic calculations.
The work was published in Nature and JACS, two very renowned scientific journals having high impact.
Another very interesting accomplishment was the observation of K-isomerism in 44S, a first nucleus
significantly lighter than A~100, and its theoretical understanding.

- 10 -

JAEA-Evaluation 2018-003

The international collaboration with Oak Ridge is strong and working well (a target of 254Es wasproduced at the ORNL) and is enabling unique experiments. The science is cutting edge and strongly
takes advantage of the JAEA tandem facility with unique equipment installed by the group.
The topics of this group will continue to be very promising, especially with the availability of heavy
actinide target materials, such as 249Cf or even 254Es, allowing access to the heaviest neutron-rich actinide
and light trans-actinide nuclei, approaching the closed, deformed neutron-shell at N=162. Also, very
promising is the development of the multi-reflection time-of-flight (MR-TOF) mass spectrometry, as
precise mass measurements are of critical importance in validating nuclear models.
Their contribution to JAEA’s mission is important. The group can take a leadership role and help
develop new directions for the JAEA. We recommend that the group become more involved indeveloping future projects using the Tandem. The group could also benefit by elevating its vision to help
a technical audience appreciate, for example, why an understanding of an “island of stability” is so
important. This should help to develop better advocacy for their research effort. It would also identify
the synergies between their work and that of some of the other JAEA research groups, such as NSFM
and MPHE.
3.

Research Group for Interfacial Reaction Field Chemistry
Score: 4

Comments and suggestions
This research group, led by B. Grambow, is doing highly applied science by dealing with the mostpressing research topics currently facing the JAEA. The importance of this group is paramount. It
navigates both basic and applied challenges. Its mandate includes topics like radioactive waste treatment
and disposal, environmental contamination, and simultaneous modelling of migration of radioactive
species through biological, geological and chemical cycles. The challenge is daunting, but the group has
repeatedly risen to the tasks at hand. Practical examples include the value of the group in addressing (i)problems at Fukushima by studying 137Cs accumulation in fungi, and (ii) problems at the inactive
uranium mine at Ningyo-toge in the south of Japan, where there is the threat that radon, uranium andpolonium can enter the food chain. We highly evaluate the group’s achievements. Prof. Grambow’s
efforts are truly extraordinary and world leading.
On the other hand, due to the urgent situation and limited budget, we recommend that the groupshould identity the most pressing problems to be solved in the aftermath of Japan’s recent catastrophic
event. The proposal to the Governing Board of the International Science Council for an “International
Nuclear Legacy Initiative” presented by Prof. Grambow points in the right direction. It has been highly
praised, and is expected to provide an excellent international stage upon which JAEA can offer
significant contributions.
The group needs specialists on theoretical modeling and microbiology. This needs to be heard and- 11 -

JAEA-Evaluation 2018-003

acted upon by JAEA management in the interest of helping to secure the future safety and welfare of the
population of Japan and as well as globally.
4. Research Group for Material Physics for Heavy Element Systems
Score: 4
Comments and suggestions
This group studies condensed matter physics in heavy elements with strong electron correlations.
With high-quality, single-crystal growth, the group utilizes extreme conditions, such as high pressure
and magnetic fields with a 2-GPa SQUID measurement system. It has also undertaken unique NMR
measurements that reveal several aspects of the novel physics of actinides.
A specific example includes explorations of URu2Si2, which exhibits unconventional
superconductivity and possesses hidden order parameters. The group presented Si NMR Knight shift
and spin-lattice relaxation rate data, and found also that the strongly anisotropic spin susceptibility
suggests that a chiral d-wave state is suspected. URhGe provided another example of exotic behavior
with re-entrant superconductivity and ferromagnetic fluctuations. A final example was the role of 5f
electrons in actinide ferromagnetism.
Future plans of the group include investigations of pairing interactions and topological aspects
of unconventional U-based superconductors, like UCoGe and UPt3. The group will also explore spin
Hall and spin Seebeck effects in diluted U systems. The excitement is that with the large spin-orbit
effects of 5f systems, unusually large and possibly useful signals could emerge. On a more applied
front, the group will also establish non-contact methods to characterize Fukushima radioactive debris.
Specifically, (U,Zr)O2 NMR and magnetization studies are planned. We regard all of these asinteresting and promising directions. We also evaluate highly that there were three post-docs and one
student recently promoted to permanent positions at excellent institutions.
Thus, the group is working on multiple fronts to advance the materials physics of heavy element
systems. The expected outcomes are new materials, new properties, and, in a very practical sense,
new approaches to identify and understand radioactive debris in real-world situations faced by Japan.
The group is well motivated, well equipped, and well positioned to bring continued acclaim to ASRC
and JAEA.
5.

Research Group for Spin-energy Transformation Science
Score: 5

Comments and suggestions
This group is highly visible internationally in the field of spintronics by its clever efforts to- 12 -

JAEA-Evaluation 2018-003

explore new directions and lead the community. Eiji Saitoh is the outstanding, creative scientist who
leads the group, which focuses on several subjects related to spin mechatronics and power spintronics.
The group has an outstanding publication output, inspiring even science in high energy physics. The
decreasing budget from JAEA is compensated by impressive third-party funding. The collaboration
between theory and experiment works amazingly well.
During this 3.5-year period they have uncovered the physics of processes involving nuclear spins
and their mechanical-rotation coupling, and spin-heat coupling effects, and their inverses. Spincurrent generated from mechanical rotation requires inhomogeneous local rotations (which are
impossible to produce in the solid state), thus, the use of liquid (Hg) in narrow channels (e.g. ~0.4mm) achieves the goal. This opens a whole new field of spin-hydrodynamics. The inverse is themechanical detection of spin currents. The field is wide open, and this group is taking a unified viewof the field, essentially writing the textbook on it. We all regard this future plan quite important andchallenging.
6. Research Group for Nanoscale Structure and Function of Advanced Materials
Score: 4
Comments and suggestions
This group aims at the studies of nanoscale structures by a synthesis team and a characterization
team. They use thin film growth by CVD and MBE and stress-control of atomic layer systems for thesynthesis, while quantum beams, such as of positrons, neutrons, and muons, are utilized for thecharacterizations. Their focus is on hydrogen and graphene as artificial nano-scale systems, while
unconventional superconductivity in bulk crystals are also being explored. The group does a good job
to balance fundamental science with applications.
The new group leader, Prof. Fukutani, is introducing fresh perspectives into the group. Although
the research topics are rather diverse, and mostly on-going ones prior to his arrival, Prof. Fukutani hasa good grip on them and will make the group more coherent in the near future. Input from his perspective
to each of the topics will hopefully lead to a new stage of development. The materials of interest are
diverse, and include graphene overlayers to trap hydrogen, monolayers of MoS2 and MoSe2 on Au(111),
germanene and silicene on Al, and even superconducting CeOBiS2. Future studies will also include
stanine, transition-metal dichalcogenides, and hydrogenated oxide materials. The phenomena studied
are also diverse, ranging from critical behavior in unconventional superconductors, to photocatalysis
and electrochemical hydrogen storage at interfaces. While this seems like a major range of phenomena
to explore, a unifying focus is that the group has unique experimental probes at its service that canaddress such a broad range of material physics and condensed matter issues.
We are very happy to hear that the long-waited ultra-cold muons are now available. There remains
a lot to improve for actual experiments, but the group has reached a great milestone that should be- 13 -

JAEA-Evaluation 2018-003

celebrated. The group is an important supporter in promoting the science done at J-PARC. Specifically,
we recommend that the search for high-temperature superconductivity of artificial structures be pursued
vigorously, including both the light and heavy elements. This is a promising direction given the recent
discovery of superconductivity of the FeSe/STO system.
7.

Research Group for Hadron Nuclear Physics
Score: 4.5

Comments and suggestions
Dr. H. Tamura of Tohoku University recently took leadership of this group as its former leader (Dr.
M. Oka) ascended to become ASRC Director General. All indications are that the group will continue
to flourish under this new leadership.
A hadron is a composite particle made of two or more quarks held together by the strong interaction.
Basic questions abound, such as (i) why are hadrons formed from quarks? (ii) how are nuclei formed
from hadrons? and (iii) what are the properties of nuclear matter at high density (neutron stars)?
The group addresses such questions utilizing an impressive array of beamline facilities at J-PARC.
The group also addresses a third dimension in the nuclear stability chart of the number of protons vs.
the number of neutrons in order to encompass the role(s) of strange quarks and charm (heavier) quarks
in contributing to the stability region.
In spite of delays caused by the 3.11 East Japan Great Earthquake in 2011, the group has maderemarkable progress, especially in the double hyper nucleus studies, and the discovery of K-pp system.
These are outstanding highlights. Excellent harmony between theory and experiment is characteristic of
the group. Thanks to the improving performance of J-PARC in recent years, the group is in theleadership position that whatever they do, their results are world-class.
The group has future plans that include very ambitious construction projects, including a new
detector (HypTPC) to search for exotic hadron physics systems at J-PARC, and, also at J-PARC, a heavy
ion accelerator project (artificially produced high-density nuclear matter as in a neutron star) which will
have the world’s highest rate of ions (1011 Hz). The group will serve as a common base for all Japanese
universities that wish to do experiments at J-PARC. The group continues to help students who join theseexperiments. The only concern is centered on the budget. These types of experiments require significant
equipment construction. At the moment the group relies on KAKENHI. JAEA should provide enhanced
support to further promote the scientific goals of the group.
To create high-density nuclei is in their future plan. We recommend to further develop this plan
both technically and scientifically. Similar projects in Germany and Russia are already in place. One
needs to clearly identify the uniqueness of the group’s particular project.

- 14 -

JAEA-Evaluation 2018-003

8. Research Group for Advanced Theoretical Physics
We did not put a score on this group since there was no presentation on the achievements.
Comments and suggestions
This research group is the expanded form of the TPI from a “virtual” system to a “real” group.
They propose as their scientific goal that non-Abelian charges and quantum clustering are the unifying
principles of hadron, nuclear and condensed matter physics. The plan is also to further enrichcollaborations within the ASRC and promote international activities of the ASRC. As alreadymentioned in the comments/suggestions to Managements of ASRC, the systems should be designed
to keep the present highly efficient collaborations between theorists and experimentalists within eachgroup as well as to promote the exchange of ideas and collaborations among different theory fields.
For that purpose, further efforts are recommended to explore more the interdisciplinary
topics/problems of mutual interests, which will stimulate the new innovative ideas. Also we urge toconsider that the new theory group can be extended to contribute also to the other three groups thatwere not mentioned in the presentation, i.e., (i) the Research Group on Interfacial Reaction Field
Chemistry, which is doing quite well but with less theoretical support, (ii) the Research Group for
Nanoscale Structure and Function of Advanced Materials, which requires support for the theoreticaldesign of materials, and (iii) Research Group for Material Physics for Heavy Element Systems, which
requires theories of strongly correlated electrons. To unify the existing six groups theoretically, it
might be better to change the scheme to “structure of quantum many-body systems andnonequilibrium dynamics”.
From the viewpoint of budget, how could new hires be achieved in the existing budgetaryclimate? Perhaps external funding, say, as in the formation of a Kavli outpost at the ASRC to anchor
and catalyze additional internal and external funding.

- 15 -

JAEA-Evaluation 2018-003

≪和訳≫
（別紙）

評価結果
先端基礎研究・評価委員会
中間評価
開催日：㻌 2018 年 10 月 11 日、12 日
報告書提出日：㻌 2018 年 11 月 16 日
委員：
氏名

所属・職位

BADER, SamuelArgonne Distinguished Fellow, emeritus, Argonne National Laboratory

CLARK, Sue

Battelle Fellow and Professor, Pacific Northwest National Laboratory

延與㻌 秀人

理化学研究所㻌 仁科加速器科学研究センター・センター長

FELSER, Claudia

Director and Professor, Max Planck Institute for Chemical Physics of Solids

家㻌 泰弘

日本学術振興会・理事、㻌 東京大学・名誉教授

永長㻌 直人

理化学研究所㻌 創発創発物性科学研究センター・副センター長（委員長）

東京大学・教授

TÜRLER, Andreas

Professor, Department Chemie und Biochemie, Universität Bern

※本和文は先端基礎研究センターにて和訳を行ったものであり、先端基礎研究・評価委員会より提出された英文を正とする。

- 16 -

JAEA-Evaluation 2018-003

以下の評点を基準に評価する。
5．特に優れている
4．優れている
3．良い
2．妥当である
1．要改善
1．センターの運営
評点：4
意見と助言
先端基礎研究センターの体制が近年変わり、優れた研究成果と運営手腕を発揮した前川禎通セ
ンター長の後任として、この 4 月より岡眞センター長が引き継いだ。岡センター長はこれまでの精神を引き継ぐと共に、革新的なアイディアを持って、順調に研究センターを運営している。何よりもまず、
我々評価委員は両センター長の運営能力を高く評価したい。先端基礎研究センターはアクチノイド
科学と原子力材料科学の 2 分野を中心としている。それぞれの分野は 3 グループから構成され、原子力機構の目指す研究開発を支える基礎科学を推進する事により、原子力機構の研究開発をリードする役割を担っている。また、岡センター長が基本方針として掲げている「リサーチファースト」を高く評価したい。
評価委員全員が、この 8 年間で運営交付金が 50％以上減少していることを問題視している。これまでのグループに加え、新たな理論物理研究グループの実施に追加の予算措置が必要である。
我々評価委員は原子力機構の経営陣に研究予算に対する配慮を強く求めたい。先端基礎研究センターの運営費は原子力機構全体から比べるとほんの僅かである。原子力機構全体の予算が厳しいことは理解しているが、その僅かな研究予算の増額で、先端基礎研究センターのアクティビティが向上し、原子力機構の果たすべき基礎科学のショーケースとして先端基礎研究センターの役割が発揮されることから、追加の予算を措置する価値が十分にあると考える。
女性研究者は 2016 年と比較し増加しており、評価したい。今後も更に先端基礎研究センター内の女性、外国人の比率を高めてほしい。多くの女性や、海外からの研究者を含めた若手研究者が活躍すれば、研究環境や生活環境が魅力的なものとして評価される。先端基礎研究センターの運営方針は更なる国際化をすること、若手研究者を惹きつけ育成することであり、既に実績として多くの卓越研究員の採用に成功している（2017 年は 8 人応募のうち 4 人採用、2018 年は 7 人応募のうち4 人採用）。これは外部の若手研究者から魅力のある研究センターと認められていることを意味している。また黎明研究制度により緊密な国際協力を続けており、多くの成果をもたらしている。
先端基礎研究センターの理論物理研究アクティビティ向上のため、バーチャル組織の Theoretical
Physics Institute から新たな先端理論物理研究グループ（仮称）を立ち上げることに賛成である。個々の理論研究者の視野を広げ、異なる研究分野同士から新たなアイディアや連携が生まれるであろう。

- 17 -

JAEA-Evaluation 2018-003

一方で各グループの理論と実験の連携はこれまで極めて良好であるから、それらを継続し維持すべきである。よって各グループの理論と実験との密な連携と同様に、種々の理論研究者同士の強い連携が可能になるよう組織作りをする必要がある。この新たな組織によって理論研究者は互いに切磋琢磨ができるようになるであろう。また、外部の理論物理研究コミュニティに対して明確にそのアクティ
ビティを示せることも、先端基礎研究センターの理論研究者にとって重要なことである。
我々評価委員は原子力機構内の更なる連携強化を求めたい。2 つの原子核物理研究グループ
はタンデムと J-PARC と連携し活動しているが、他はそれら施設を通した共同研究者というよりむしろユーザである。多くの研究グループが原子力機構内で独立しているようである。先端基礎研究センタ
ーが原子力機構にある利点をどう活かすか、どのように原子力機構に貢献できるのかを考えることが重要である。また、今後の原子力技術や、原子力に関わる環境回復、廃棄処理などの日本や国際社会の主要課題に対応した先端基礎研究センターの目標、ビジョンを明確にすることが望ましい。これらの目標は原子力機構の全ての組織に適応され、先端基礎研究センターでは先進的なビジョンを明確に示す必要がある。このビジョンは次の 2 年、5 年、10 年後に達成される顕著な研究成果の創出に活かされるであろう。
2．重元素核科学研究グループ
評点：5
意見と助言
本研究グループは、原子核や原子の構造、さらに新たな核反応機構の解明に取り組んでいる。グループは核分裂の実験研究に関して、ASRC と原子力機構でのみ可能となる大きな成果を挙げた。㻌
世界クラスのトップレベルの結果として、ローレンシウム（Lr）を代表とする重いアクチノイド元素の第 1 イオン化ポテンシャル（IP1）の測定がある。ここでは、実験と最新の理論計算とのコラボレーションが実現し、高いインパクトファクターを有し、かつ知名度の高いネイチャー誌（Nature）や JACS
（Journal of the American Chemical Society）に出版された。また、興味ある成果として 44S（硫黄 44）のK-アイソマーの測定がある。このような励起状態が質量数 100 より小さい原子核で観測された例はな
く、本グループの理論によって確立した。
米国オークリッジ国立研究所との密接な協力がうまく機能し、アインスタイニウム 254 の入手を可能にした。タンデム加速器施設、及びグループが開発した装置を最大限に活用することで、最先端の科学を進めている。
グループが計画する研究は非常に有望である。249Cf や 254Es 等を用いた原子核反応により、中性
子数 162 の変形閉殻に代表される中性子数の過剰なアクチノイド原子核の合成が可能となる。また、多重反射型飛行時間測定式質量測定器（MR-TOF）の開発に期待したい。これにより、原子核モデルの構築に必要な高精密質量測定の実現が可能となるからだ。
原子力機構のミッションへの貢献は重要であり、本グループは原子力機構の研究のリーダーシッ
プをとり、また研究の方向性を導くことができる。ここで、グループはタンデム加速器を用いた将来のプロジェクトに積極的に取り組むことを期待する。プロジェクトのビジョンを高めることで、技術開発者- 18 -

JAEA-Evaluation 2018-003の支援を得ることができる。“安定の島”を例にとると、この探究と理解がなぜ必要であるかを説明することで、本研究に取り組むための原子力機構の支援を受けることができる。また、原子力機構の他の研究グループとの連携を生むことにつながる。
3．界面反応場化学研究グループ
評点：4
意見と助言
本研究グループは、原子力機構が現在直面している最も差し迫った課題に取り組むために高度な応用科学研究を行っている。本グループの重要性は非常に高い。基礎と応用の両面から挑戦することを目指している。本グループの主な研究対象は、放射性廃棄物処理処分、環境汚染、放射性核種の環境移行挙動の地球化学的循環という観点からの総合的モデル化などである。挑戦（チャレンジ）は一方で気が引けるものであるが、本グループが挑戦的に取り組む課題が繰り返し現れている。
具体例として、1)福島の放射性セシウム汚染土壌での菌類によるセシウム濃集、及び 2)人形峠の廃ウラン鉱山の閉鎖措置に関する問題があり、後者はラドン、ウラン、ポロニウム等の食物連鎖への移行という潜在的問題を含む。評価委員会は、同グループの成果を高く評価する。グランボーグルー
プリーダーのリーダーシップは非常に素晴らしく、この分野を導くものである。
一方、研究資金が限られる現状と日本の差し迫った状況を鑑み、評価委員会は、本グループは大震災以後の最も差し迫った課題を明確にすべきだと考える。グランボーグループリーダーが提案する、負の原子力遺産を解決するための国際的取り組みを推進する国際学術会議構想、は正しい方向であり賞賛されるべきものである。同問題の研究開発を国際協力として取り組む場となることが期待でき、更に原子力機構による大いなる貢献が期待できる。
本グループは、理論化学モデリングと微生物の専門家を必要としている。原子力機構管理部門は、本グループの研究が日本のみならず世界の安全と繁栄の確保の一助となるということを理解し、人材採用に取り組むことが必要である。
4．重元素材料物性研究グループ
評点：4
意見と助言
このグループは、強い電子相関を持つ重元素系の凝縮系物理学を研究している。高品質の単結晶試料育成を基本に、2 GPa の SQUID 測定システムなど、高圧及び高磁場のような極限条件を利用している。また、独自の NMR 測定を行い、アクチノイドの新しい物理学の数々の側面を明らかにしている。
典型例として、非通常超伝導性と隠れた秩序を示す URu2Si2 の研究が挙げられる。このグループ
は、Si NMR ナイトシフト及びスピン格子緩和率データから、強い Ising 異方性スピン磁化率と、カイラ- 19 -

JAEA-Evaluation 2018-003

ル d 波超伝導状態を明らかにした。 また URhGe では、リエントラント超伝導及び強磁性超伝導の機構を解明した。それ以外にもアクチノイド強磁性体における 5f 電子スピンゆらぎの役割で明らかにしている。
このグループの今後の計画には、UCoGe や UPt3 のような非通常型の U 系超伝導体の超伝導ペアリング相互作用やトポロジカルな側面の研究が上がっている。このグループはまた、アクチノイドス
ピンロニクス研究として、希薄 U 系におけるスピンホール及びスピンゼーベック効果を探索する。興味深いことは、5f システムの大きなスピン軌道効果で、異常に大きな、おそらく有用な信号が出現する可能性があるということである。より応用的なテーマとして、このグループは福島第一原子力発電所のデブリを評価する非接触測定方法を開発する予定である。具体的には、(U, Zr)O2 系の NMR 及び磁気測定が計画されている。これらのすべてを興味深く有望な研究方向である。 3 名のポスドクと
1 名の学生が最近、権威ある大学・研究機関のポストを得たことも評価できる。
このように、このグループは重元素系の凝縮系物理学を進展・応用させるために複数の取り組みをしている。その成果として、新材料、新しい電子物性、そして実用的な意味ではデブリ評価法開発が期待できる。このグループは、非常に意欲的で確かな問題意識を持ち、設備も整っており、ASRCと原子力機構に高い評価を引き続きもたらすグループと結論できる。
5．スピン－エネルギー変換材料科学研究グループ
評点：5
意見と助言
このグループは、新しい研究分野を開拓する優れた努力により、スピントロニクスの分野で国際的に非常に目立っており、研究コミュニティをリードしている。このグループを率いている齊藤英治氏は、想像力に溢れる優れた科学者であり、スピンメカトロニクスやパワースピントロニクスに関連するいくつかのテーマに的を絞って機構における研究を推進している。このグループの優れた研究成果は、高エネルギー物理学にも影響を与えている。原子力機構からの予算が削減されるなか、競争的資金を獲得することで削減分を補うべく努力をしている。また、理論と実験の協力が驚くほどうまくいっている。
この 3 年半の間に、核スピンと力学的回転運動との結合、スピン-熱結合効果、及びその逆効果を含む物理を明らかにした。力学的回転からスピン流を生成するためには、空間的に不均一な局所回転場（固体中では生成することができない。）を必要とするため、狭いチャネル（例えば、〜0.4mm）中の液体金属（Hg）を用いることで目標を達成した。これにより、スピン流体力学の全く新しい分野が開かれた。この逆効果はスピン流の力学的検出である。このようなスピン流に関連する研究分野は、多岐に亘っているが、このグループは統一された見解を持っており、それを優れた教科書にまとめている。私たちは皆、この将来計画を非常に重要かつ挑戦的だと考えている。
6．ナノスケール構造機能材料科学研究グループ
評点：4- 20 -

JAEA-Evaluation 2018-003

意見と助言
本グループは、試料作製チームと評価チームで構成され、ナノスケール構造の研究を目指している。試料作成として CVD と MBE による薄膜成長、歪制御 2 次元系、を採用する一方、ポジトロン、中性子、ミュオンという量子ビームを用いて評価を行っている。水素、グラフェンといった人工ナノ構
造に加え、バルクの非従来型超伝導に関する研究も行っている。このグループは、基礎研究と応用のバランスを取ってよい成果をあげている。
新しいグループリーダーである福谷教授は、本グループにフレッシュな視点を持ち込みつつある。
多岐に亘る研究テーマが展開されているなかで、福谷教授はそれらをうまく取り纏めており、将来は個々のテーマをよりコヒーレントにつなげることが期待される。彼の視点を取り入れることで新しい発展をすることが望まれる。取り扱っている物質は、グラフェンによる水素トラップ、Au(111)上の MoS2と MoSe2、Al 上のゲルマネンとシリセン、CeOBiS2 の超伝導、将来はスタネン、遷移金属ダイカルコ
ゲナイドなども検討されており、多種多様である。扱う現象も非従来型超伝導から光触媒、電気化学
水素貯蔵まで多様である。このグループはユニークな実験プローブを有し、それゆえに幅広い物質科学、物理現象の研究が可能になっている。
長年の課題であった超低速ミュオンが稼働しつつあることは喜ばしい。実際の実験にいたるにはまだ課題が残されているが、画期的な成果と認められる。本グループは J-PARC における研究推進に重要な寄与をしている。今後は特に、近年の FeSe/STO 系に見られるように、軽元素と重元素を両方活用した人工的な構造による高温超伝導の探索をぜひとも推進すべきである。
7．ハドロン原子核物理研究グループ
評点： 4.5
意見と助言
2011 年 3 月の東日本大震災による遅れにも関わらず、ダブルハイパー核研究や K-pp 系の発見
等、グループは特筆すべき成果を挙げている。理論と実験の素晴らしい調和がこのグループの特徴である。J-PARC の性能向上によって、このグループが行っている研究においてリーダーシップをとっており、世界的な成果を挙げている。
グループは、新検出器（HypTPC）による J-PARC におけるエキゾティックハドロン物理の探索や、JPARC における重イオン加速計画等の野心的な将来計画を持っている。グループは J-PARC で研究を行う日本の全ての大学の共通の基地となっており、またグループは実験に参加する学生のサポートを行っている。
グループの研究に関する唯一の心配は、予算である。これらの研究には、多大な実験装置の建設が必要となる。現在のところ、グループは科研費に依存している。原子力機構は、グループの科学的目標を更に推進するためにサポートを増強すべきである。
高密度核物質を創り出すことがグループの将来計画である。委員会は、技術的、科学的両方にお- 21 -

JAEA-Evaluation 2018-003

いてさらなる計画の発展を推奨する。ドイツやロシアにおいて同様の計画が既に立ち上がっている。
グループ特有の計画を明確に同定することが必要である。
8．先端理論物理研究グループ
これまでの研究成果の発表がなかったので、評点は付けなかった。
意見と助言
提案の理論グループは、従来の仮想 TPI を現実のグループにするものである。ハドロン、原子核、物性物理の共通原理を非可換電荷とクラスターに求めている。更に ASRC における国際共同研究を発展させるとしている。運営項でコメントしたように、新たな枠組みにおいてはこれまでの理論と実験の良好な共同研究体制を維持すると同時に、異なる分野の交流・共同研究の推進が望まれる。そして革新的なアイディアを生み出すために、分野横断的な興味の対象を切り開くべく、より一層努力して欲しい。更に、中間評価のプレゼンで触れられなかった他の 3 グループへの貢献拡大を早急に検討して欲しい。すなわち、(i)界面反応場、(ii) 重元素材料、(iii) ナノスケー
ルの 3 つである。理論的に 6 つのグループを結ぶ研究テーマとしては、“structure of quantum
many-body systems and nonequilibrium dynamics”がふさわしい。
予算の観点からは、現在の予算状況下で新しい人材をどのように確保するかが問題である。恐らく、先端基礎研究センター内の Kavli 支所設置のような外部資金が、更なる内部資金と外部資金を惹きつけ、相乗効果をもたらすであろう。

- 22 -

JAEA-Evaluation 2018-003

7. 評価委員会の提言に対する原子力機構の措置センターの運営
提言

措置・8 年間で運営費交付金が 50％以上減少してい・機構における基礎科学研究の重要性を認識し、ることを問題視している。研究予算に対する配慮

研究予算に対して配慮する。

を強く求めたい。

・センターの研究者のダイバーシティを維持、拡・今後もさらに女性、外国人研究者の比率を高め大するように人事的配慮を行う。

て欲しい。

・現在の 6 研究グループを横断的に束ねて、セン・理論物理研究アクティビティ向上のため、先端ターの国際的研究活動の中心的役割を担う先端

理論物理研究グループ（仮称）を立ち上げること

理論物理研究グループを新たに設置する。

に賛成する。各グループの理論と実験との連携と・JAEA の関連研究施設との共同研究を促すこと

同様に、理論研究者同士の連携が可能になるようで、機構全体の将来計画策定等におけるセンタ

組織作りする必要がある。

ーの役割を強化する。

・先端基礎研究センターの更なる JAEA 内の連携強化を求めたい。

重元素核科学研究
提言

措置

原子核モデルの構築に必要な高精密質量測定

本中長期計画中の研究を起点に、超重元素領域の実現のために多重反射型飛行時間測定式質に存在する“安定の島”の開拓を目指す。このた

量測定器（MR-TOF）の開発に期待したい。タン

め 、多 重 反 射 型 飛行 時間 測 定 式質 量 測定 器

デム加速器を用いた将来のプロジェクトに積極的（MR-TOF）等の開発を行う。

に取り組むことを期待する。
界面反応場化学研究
提言

措置

負の原子力遺産を解決するための国際的取り組

日本の原子力における喫緊の課題に対しては、みを推進する国際学術会議構想は正しい方向で研究を加速するとともにその成果を諸外国の原子あり、同問題の研究開発を国際協力として取り組力問題解決に貢献できるよう、国際協力の構築へむ場となることが期待できる。

向けて取り組んでいく。

重元素材料物性研究
提言

措置

重元素系の凝縮系物理学を進展・応用させるた新奇の興味深い物質や電子物性の探索、また福めに複数の取り組みをしており、その成果として

島廃炉措置に有効なデブリ評価法の開発研究を推進する。

- 23 -

JAEA-Evaluation 2018-003

新材料、新しい電子物性研究、デブリ評価法開発が期待できる。
スピン－エネルギー変換材料科学研究提言

措置

スピン流に関連する研究分野は多岐に亘っていグループリーダーの強いリーダーシップのもと、実るが、まとめられた将来計画は非常に重要かつ挑

験と理論が協力して、多くの優れた成果を出すべ戦的だと考えている。

く努力する。

ナノスケール構造機構材料科学研究
提言

措置新しいグループリーダーのもと、多岐にわたる研今後も個々の研究者の自由な発想を大切にしつ究テーマについて、基礎研究と応用のバランスをつ、その中でいくつかのテーマについては焦点を取って、よい成果を上げている。超低速ミューオン

絞った研究を展開したい。

ビームによる物性研究も期待される。
ハドロン原子核物理研究提言

措置

ダブルハイパー核研究や K-pp 系の発見等、特筆

世界最高強度の重イオン加速計画の立案、達成

すべき成果をあげている。高密度核物質を創り出へ向けた準備研究を進めて、学術コミュニティのすことを将来計画としているが、技術的科学的に議論を経て、計画を提案する準備を行う。

おいて計画の発展を推奨する。グループ特有の計画を明確に同定することが必要である。
先端理論物理研究
提言

措置

理論と実験の良好な体制を維持し、異なる分野の既存の 6 グループとの共同研究を維持しつつ、異交流・共同研究の推進が望まれる。界面反応場、なるバックグラウンドを持つ研究者が分野横断的

重元素材料、ナノスケールの各グループへの貢に活動することで、新たな知見の獲得を目指す。

献拡大を早急に検討して欲しい。

また、世界に見える研究センターを目指して、センターの国際的な研究活動を強化する。

- 24 -

JAEA-Evaluation 2018-003(English translation)

JAEA’s responses to the recommendations by the Evaluation Committee
Management of ASRC
Recommendations

Responses

・ All the committee members have the concern

・We recognize the importance of the basic science

about the decreasing internal budget from JAEA

research in JAEA, and will consider the budget

during the last eight years by more than 50%. We

allocation for it.

strongly urge the top administration of JAEA to pay

・We will make efforts in keeping and increasing theattention to this concern.

diversity of the researchers of ASRC.

・Further effort to increase the percentage of female

・By bundling the theoretical activities in current 6

members and foreigners in ASRC is recommended.

research groups, we newly establish the Advanced

・It is a good idea to enhance theoretical activities

Theoretical Physics Group which will play a central

within the ASRC by establishing the new Advancedrole in the ASRC's international research activities.

Theoretical Physics group. The system should be

・By promoting collaborations between ASRC anddesigned to establish the combination of a strong

other research facilities in JAEA, we will strengtheninterdisciplinary theory group as well as close

the role of the ASRC in formulating future plans ofcollaborations between theory and experiment

JAEA.

within each group.
・ We suggest Prof. Oka to put more stress on
collaborations with other parts of JAEA.
Research Group for Heavy Element Nuclear Science
Recommendations

Responses

It is desired to develop the multi-reflection time-of-

We place our activities in the current mid-term plan

flight (MR-TOF) spectrometry, which can realize

as the start to explore the “island of stability”

precision mass measurements necessary to establish

located in the super-heavy element region. For thisnuclear models. We hope to actively work on future

we will develop the MR-TOF system, a key tool toprojects using the tandem accelerator.

investigate this region.

Research Group for Interfacial Reaction Field Chemistry
Recommendations

Responses

The proposal to the Governing Board of theWe will enhance our efforts to address pressing

International Science Council for an “International

problems arising from Japan’s recent catastrophic

Nuclear Legacy Initiative” points in the right

event, and to establish international collaborations

direction. It has been highly praised, and is expected

to share our knowledges world-wide and to- 25 -

JAEA-Evaluation 2018-003

to provide an excellent international stage upon

contribute to the international efforts on nuclear

which JAEA can offer significant contributions.

legacy.

Research Group for Material Physics for Heavy Element Systems
Recommendations

Responses

The group is working on multiple fronts to advance

We will try to search for new interesting materials

the condensed matter physics of heavy element

and electronic properties in heavy element systems,

systems. The expected outcomes are new materials,

and new useful characterization method for debris

new properties, and new approaches to identify andin the Fukushima issue.

understand radioactive debris.
Research Group for Spin-energy Transformation Science
Recommendations

Responses

Although research fields related to spin current are

We will continue making efforts to obtain many

diverse, we consider the future plans summarized to

excellent results with the collaboration of thebe very important and challenging.

experimentalists and the theorists under the strong
leadership of the group leader.

Research Group for Nanoscale Structure and Function of Advanced Materials
Recommendations

Responses

Under the new group leader, the group have

Encouraging the challenges and new ways ofachieved good results by balancing basic researchthinking of individual researchers, we will try to

and application on a wide range of research topics.

focus on some specific issues in a coherent manner.

Material researches utilizing ultra-cold muon beams
are also desired.
Research Group for Hadron Nuclear Physics
Recommendations
The group has made remarkable

Responses
progress,

We are going to propose the project realizing theespecially in the double hyper nucleus studies, andworld’s highest-intensity heavy-ion beams at J-

the discovery of K-pp system. To create high-

PARC through discussions under Science Council

density nuclei is in their future plan. We recommendof Japan. We will make preparatory researches andto further develop this plan both technically anddevelopments towards this goal.

scientifically. One needs to clearly identify theuniqueness of the group’s particular project.

- 26 -

JAEA-Evaluation 2018-003

Research Group for Advanced Theoretical Physics
Recommendations

Responses

It is desired to keep the present highly efficient

Keeping the collaborations with the experimental-

collaborations between theorists and experimental-

ists of the six groups, we will aim at creating new

ists as well as to promote the exchange of ideas andideas and concepts through interdisciplinary

collaborations among different theory fields. We

discussions

also urge to consider that the new theory group canbackground. We strengthen international research

be extended to contribute to the other three groups

activities of ASRC with the aim of becoming aof Interfacial Reaction Field Chemistry, Nanoscale

research center that can be seen in the world.

Structure and Function of Advanced Materials, andMaterial Physics for Heavy Element Systems.

- 27 -

among

scientists

withdifferentThis is a blank page.

JAEA-Evaluation 2018-003

付録㻌 1
中間評価資料（先端基礎研究センター作成）

Appendix 1
Status Reports for Mid-term Review Meeting (owned by ASRC)- 29 -

JAEA-Evaluation 2018-003

中間評価資料（先端基礎研究センター作成）目次
Contents on Status Reports for Mid-term Review Meeting (owned by ASRC)

1. Status Report and Future Plans of the ASRC Management2.

Research Group for Heavy Element Nuclear Science3.

Research Group for Interfacial Reaction Field Chemistry

4. Research Group for Material Physics for Heavy Element Systems
5. Research Group for Spin-energy Transformation Science
6.

Research Group for Nanoscale Structure and Function of Advanced Materials

7.

Research Group for Hadron Nuclear Physics

8. Research Group for Advanced Theoretical Physics- 30 -

JAEA-Evaluation 2018-003

Status Report and Future Plans of the ASRC Management
1. Status of the ASRC at the beginning of the current seven-year plan
The Advanced Science Research Center (ASRC) was founded in 1993, 25 years ago, by therecommendation of the Scientist Committee of the Japan Atomic Energy Research Institute (JAERI).
The original design concept of the Center was given in two sentences:(i) It will pursue principles and origins behind the phenomena and problems of the atomic energy
science research and development.
(ii) It will carry out researches to lead development of atomic energy as well as the other basic
sciences from wide viewpoints.
These aggressive goals were realized by a superb management of the Center by the former
Directors General, Muneyuki Date, Hiroshi Yasuoka, Yoshihiko Hatano and Sadamichi Maekawa. Until
recently, the management of the Center was directly linked to the President of the Institute. The
Evaluation Committee was advised to submit pre- and post-evaluations of the management and groupprojects of the Center to the President. The development of the Center was supported by the significant
budget (five times more than the current one). The high standard of the scientific researches has been
kept by our staff members as well as many invited scientists from outside as project Leaders.
At the merger with the Japan Nuclear Cycle Development Institute, the ASRC survived in the new
institution, the Japan Atomic Energy Agency (JAEA). Now the management is placed under the Nuclear
Science Research Institute, the Sector of Nuclear Science Research. Since the merger, the size, bothhuman resources and budget, of the Center was reduced. At the beginning of the current seven-year plan
period, the number of groups was reduced to six from eleven for the previous term.
2. Summary of the First Three Years (2015-2018)
During the first three years of the current seven-year plan period (2015-2022), the Center exhibitedhigh performances in scientific researches under the strong leadership of Director General S. Maekawa,in spite of the downsizing of the research groups. Many notable achievements have been accomplished,which are presented at the reports from each research group. We have more than twenty press releases
in FY2015-2017. At the end of FY2017, the ASRC was honored to be chosen as an APS TV 2018
program to introduce the renowned physics research institutions in the world. It is a great step forward
for the Center.
2.1 Groups and Policies
The Center consists of six Research Groups (see Table); three groups for each of the two researchsubjects: Advanced Actinides Science and Advanced Nuclear Materials Science. Four of the six groups㻌- 31 -

JAEA-Evaluation 2018-003

had the guest group leaders, two from abroad and two from domestic universities. The research activities
and achievements of the individual groups are described in detail in the later sections.
Research Group forInterfacial

Reaction-Field

Group Leader
Chemistry

B. Grambow (SUBATECH, France)

Advanced(IRFC)

Actinides

Heavy Element Nuclear Science (HENS) A. Andereyev (Univ. York, U.K.)

Science

Hadron Nuclear Physics (HNP)

M. Oka (Tokyo Inst. Tech.) (- 2018.3)
H. Tamura (Tohoku Univ.) (2018.4 -)Spin-Energy

Transformation

Science

E. Saitoh (Univ. Tokyo)

Advanced(SET)

NuclearNanoscale Structure and Function of S. Shamoto (- 2018.3)

Materials

Advanced Materials (NSFM)

Science

Materials Physics for Heavy Element

K. Fukutani (Univ. Tokyo) (2018.4 -)Systems (MPHE)

S. Kambe

Dir. Gen. Maekawa determined the “ASRC Initiative” of the following two objectives:(i) To carry out cutting-edge nuclear and materials science research by making maximum use of theadvantage of the JAEA and by developing human resources for this purpose.
(ii) To carry out the activities as an international research center and to be the research organization
which leads the JAEA.
2.2 Management
The Center holds a monthly All-Staff meeting, where the ASRC members (including PDs andstudents) exchange ideas and opinions on the management and researches of the Center. About once a
year we have a chance to have the Executive Directors for the Sector of Nuclear Science Research join
our monthly meeting so that we can discuss our problems directly with him/her. Twice in a fiscal year,
the Center hold the hearing of each research group with presentations by the group leaders on the
research progress and the budget requests. The Director General and a few management staffs have aninterview to each member of the Center every year. In these occasions, the management tries torecognize the problems and needs of the research groups and the individual members. These areimportant opportunities for the administration to guide the groups and individual researchers for higher
performances.
In May 16 and 17, 2016, the Center held the ASRC Workshop, where each research group reported㻌- 32 -

JAEA-Evaluation 2018-003

its research contents and achievements. One of the purposes was to introduce the activities of the Center
to the members of the new Evaluation Committee. We asked the Evaluation Committee to givecomments and suggestions on the status of the Center both in the research and the management.
The Center promotes the Reimei Research Program (RRP) strongly. The RRP is very successful inenhancing international and domestic collaborative researches of the Center. The Center accepts
proposals from principal investigators (PI) in the outside institutions and the evaluation committee withoutside members examines and selects the proposal. The approved programs are carried out incollaboration with research groups at the Center. In FY2015-2018, in total 28 RRPs (8, 6, 7, 7 for eachyear) were accepted and carried out. Under the continuous reduction of the budget, the current RRP
projects are partly supported by the research money allocated to the Center. Thus, the budget of eachresearch group is practically supplemented by the RRP.
2.3 Personnel
The Center has been endeavoring to recruit and support young researchers. We regard post-doctoral(PD) researchers as well as research students as major contributors for the research groups. The numberof the employed researchers is limited by the budget set by the JAEA. In recent three years, we havemanaged to get all the applicants for the Special Research Students, who get a scholarship (100,000
JPY/Month) from the JAEA. Unfortunately, the budget is not fully covered by the JAEA and is
supplemented from the research group budget or the grant money.
The JAEA yearly recruits PD researchers publicly, for which the Center receives overwhelmingly
many applicants (see Table below). The Center wants to accept as many good people as possible byasking more budget each year. For the JAEA, our PDs are the high-quality resources of future staffs ofthe various sections, as the PD can apply for the tenure screening after 3 years of his/her appointment
and the successful candidates get permanent positions at the JAEA. It is desirable to increase the budget
for PDs at the ASRC as the Center is a leading provider of good young people to the other sections of
the JAEA.
TABLE: Numbers of the Accepted v.s. the Applicants for the TAKUETSU, PD, and Special
Research Students in FY2015-2018
FY2015FY2016FY2017FY2018TAKUETSU

N/A

N/A

4/8

not available /7

PD

6/19

3/30

5/18

3/20

Students

11/15

7/7

11/11

16/17

㻌
- 33 -

JAEA-Evaluation 2018-003

In FY2017, the Center accepted four tenure-track (TAKUETSU) researchers through the JSPS
Leading Initiative for Excellent Young Researchers program 卓越研究員事業 . They are among the
200 or more most-excellent young researchers for all the research areas chosen by the JSPS. In the JAEA,
the ASRC is the only section, which so far successfully accepted the TAKUETSU researchers. Thisshows that the Center is a very attractive research place for young researchers. We also have several
other PDs (including JSPS PD fellows), who are supported by various external funding sources. They
are not counted in the Table above.
2.4 Public Relations
The ASRC makes much efforts in publicizing its activities. The Center yearly publishes “Note on
Basic Science 基礎科学ノート ”, which contains introduction, news and research highlights of theASRC. We also send our young scientists to various JAEA public relation events for presentations of
our research results. It is important to stress the values of basic science part of the researches at the
JAEA. This year we prepare to publish the “Note” for the 25th anniversary of the Center with themessages of the former Directors General.
Contribution to the human society is another important activity of the ASRC. Some of ourresearches are directly connected to solve the nuclear waste problem, such as ADS, and theenvironmental radiation problems, in particular in the Fukushima area. Some other activities may havepotential for industrial applications.
This summer, the JAEA held a presentation session (the JAEA Technical Salon) for industrial
applications. Three projects of the Center were presented for future industrial developments andapplications. One of them is related to the spintronics, that was pointed out to be useful for developing
future energy-harvesting micro-devices. The industrial application is not a direct goal of our research,and thus in pursuing cooperation with the industry we need to develop and utilize support mechanisms
in the JAEA.
3. Responses to the previous comments from the Evaluation Committee
In May 2016, the Center held the ASRC Workshop on the research activities of all the researchgroups. We asked the Evaluation Committee members to join the Workshop and to give us comments
and suggestions on the management and the research activities. The Committee gave us many valuablecomments and recommendations.
3.1 Comment 1 and the response
The Committee evaluated the activities of the Center very highly. In particular, the Committee gave㻌- 34 -

JAEA-Evaluation 2018-003

an encouraging comment on a newly-started activity of Theoretical Physics Institute (TPI). TPI is avirtual group designed to develop interdisciplinary research environment. It aimed to enhance exchangesof the ideas among the nuclear, hadron, and condensed matter physics theorists. The group has continued
discussion on how to bridge a variety of physical phenomena at different scales. The fruit from thiscollaboration is now realized as the proposal of a new (non-virtual) research group of Advanced
Theoretical Physics (ATP).
3.2 Comment 2 and the response
The Committee recommended to increase the budget of the ASRC to enhance visibility andintellectual resources and also to improve gender diversity. Our core budget has not been increased sofar, but the Reimei Research Program (RRP) is recognized highly by the JAEA administration and is
supported continuously. We also could successfully obtain the budget for cross-appointing a woman
scientist and also for several new tenure-track researchers.
4. Challenge Targets for the Latter Half (2018-2022)
We have just started a new administration in FY2018. M. Oka took the office of the Director
General, and we welcome two new group leaders, Prof. H. Tamura (Tohoku U.) for the Hadron Nuclear
Physics and Prof. K. Fukutani (U. Tokyo) for the Nanoscale Structure and Function of Advanced
Materials.
This mid-term review happens to coincide with the new start of the Center. At this opportunity weare going to examine and renovate the management and the research plans of the Center, and set
challenging goals to promote a new phase of high performance of the scientific researches. We here
present specific research plans for the rest of the seven-year plan period from each group. We also
propose to establish a new research group of Advanced Theoretical Physics (ATP).
Concerning the management of the Center, the new administration plans to renovate the Center
under the “Research First” principle. At the 25th anniversary of the ASRC, it seems important that weremind the original high ideals when the Center was founded, and pursue the world leading research
institution for fundamental science. While the Center continues to value the ASRC Initiative by theformer Dir. Gen. Maekawa as a leading principle of the current seven-year plan, we set up the following
Challenge Targets.
Challenge Targets:
1. We emphasize voluntary and original researches and aim to enhance our strengths andadvantages.

㻌- 35 -

JAEA-Evaluation 2018-003

  自発的で独創的な研究を重視し、我々の強みと利点をさらに活かすことを目指す。 
2. We focus our efforts on recruiting and supporting young generation researchers.
  若手研究者の採用と育成を進める。 
3. We encourage multi-disciplinary cooperation within the Center, with the other researchdivisions of the JAEA, and with domestic and international universities and institutions.
  センター内、-$($ 内、国内外の大学研究所との分野を超えた連携協力を奨励する。 5. Management Plans for the Latter Half (2018-2022)
The above-stated Challenge Targets are to be realized in the following itemized plans.
5.1 Human resources
Human resources are most valuable assets of the Center. We continuously try to enrich both thenumber and quality of our staff members. To this goal, we would pursue every opportunity for new
employment. It is important to make the employment policy transparent and to recruit and attract thebest scientists widely and extensively. The diversity of the staff members, women and foreigners, is alsoof high priority.
We continuously make use of the JSPS Excellent Young Researchers 卓越研究員 program. The
employed tenure-track scientists are regarded as independent researchers and considered as the group
staffs for the future plans of the Center. We also recruit PD researchers, visiting scholars, research
fellows (temporal foreign staff), cross-appointed staffs. Hosting JSPS young research fellows should
also be enhanced. As the JSPS fellows are not employed directly by the JAEA, their status in the JAEA
is not well established. We need to improve the work conditions for the JSPS fellows.
5.2 Students
Recruiting students is also important for our research activity. As the JAEA is not an educational
institution, we need assistance and association of universities. The Center yearly employs several
Special Research Students (supported by the scholarship from the JAEA). The visiting and crossappointed staffs (both ways) are helpful for taking advantage of connections to the universities. We
would like to prepare proper educational and supportive functions for students at the Center. This year
we newly started the Young Researchers Forum, in which visiting students give presentations of theirworks in a poster session. We also started an orientation meeting for the visiting students in April. We
have a trial summer school for all visiting undergraduate and graduate students of the JAEA in August.

㻌- 36 -

JAEA-Evaluation 2018-003

5.3 Research Environment
Improving the research environment is one of the most important issues. Safe and healthy officeand laboratory spaces are valuable. The infra-structures, such as the network and the journals, are also
indispensable. Several problems have arisen, such as insufficient earthquake resistance, old airconditioning systems, inconvenient network access, network availability for visitors, and so on. We haveto allocate some budget for solving these problems each year in a planned manner.
5.4 Budget
The ASRC budget from the JAEA was reduced largely by a rate of a few per cent each year during
the first 4 years of the current seven-year plan period. The research money for each research group is
reduced accordingly. Yet efforts of each group bring significant external research funds including the
JAEA competition funds, which support the active research. We need further efforts to get a big-scalefunding.
In FY2018, the JAEA administration introduced a new President-office budget, which is allocatedto the research centers by an application-approval basis. The Center applied for the budget and got asmall portion to enlarge the Reimei Research Program.
5.5 Renovation of the Reimei Research Program
The Reimei Research Program (RRP) has been successful in enhancing international and domestic
collaborative researches of the Center. We plan to update the RRP, enhancing the program and applying
for expansion of the budget. Firstly, we would like to generalize the program so that RRP can support
developing COE function of the ASRC group with a network of multiple institutions over the world(network-type collaboration). We also want to hold schools for educating students from domestic andforeign universities. This year we had a trial summer school for the summer-time visiting students.
Furthermore, the RRP is extended to the other research centers of the Sector of Nuclear Science Research.
5.6 Cooperation in Researches at the JAEA and with Other Institutions
We pursue various forms of research cooperation within the JAEA and with outside institutions.
Although the ASRC does not operate any facilities, our scientists are involved in operating and using
several JAEA facilities. The J-PARC is the world-leading high-intensity proton accelerator, which
provides high-quality neutron, muon, meson and neutrino beams of wide range of energies as thesecondary beams. Our scientists are involved in several major projects at the J-PARC, such as μSR andneutron-scattering material sciences, strangeness physics with hadron beams and so on. We also carryout nuclear physics experiments at the TANDEM accelerator, where we carry out nuclear fission and㻌- 37 -

JAEA-Evaluation 2018-003

fusion experiments using actinides. The cooperation with these JAEA facilities is a strong advantage of
the Center. Strengthening the tie to these facilities and actively participating their future plans are quite
important for the future of the Center. Cooperation with the operating facilities in the JAEA is also
helpful to apply for big research funds.
We also encourage collaborative researches with other domestic and foreign institutions andfacilities. The Center has several active research agreements (MoU or Memorandum of Cooperation)with foreign institutions, such as ORNL (USA), ANL (USA), GSI (Germany), Seoul National Univ.
(Korea), Univ. Belgrade (Serbia) and ECT* (Italy). The Center is determined to open up for visiting
scholars both from Japan and abroad. The Reimei Research Program is a driving force for international
collaborations and we aim for the expansion of the Program. For this goal, it is important to improvethe current management system for making research exchange agreements and accepting foreignscholars, which is quite cumbersome and time-consuming.
5.7 Proposal of Res Gr. for Advanced Theoretical Physics (ATP)We propose to start a new integrated theoretical physics group, which covers theoretical activities
of various physics disciplines. In 2015, we have established a virtual organization, Theoretical Physics
Institute (TPI), in which we aimed to enhance exchanges of the ideas among the nuclear, hadron, andcondensed matter theorists. The fruit from this collaboration is now realized as the proposal of a newresearch group, Advanced Theoretical Physics (ATP), which is designed to cross over the current six
research groups. We set the goals of the ATP as
・to develop new concepts in quantum many-body physics,
・to enrich collaboration with the other research groups and experimental projects, and・to promote international activities of the ASRC by establishing an international platform and show
the presence of the theoretical physics activity.
The ATP is supposed to cooperate continuously with the other six research groups of two researchareas. At the same time, it sets up a proper research goal: “Many-body dynamics with quantum clusters
formed by non-commutative charges”. The details of the theory mission are given in a separate section.

㻌- 38 -

JAEA-Evaluation 2018-003

Budget of ASRC

Unit of million yen
600

External Fund (KAKENHI)
External Fund (except KAKENHI)
Internal Budget from JAEA

Annual Budget

500
400
300
200
100
0

2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

Fiscal Year

Fiscal Year 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
External Fund
(KAKENHI)
External Fund (except
KAKENHI)Internal Budget from
JAEA*

50

62

60

60

87

61

64

102

59

86

155

216

96

111

96

107

214

98

116

143

298

298

269

229

160

132

132

132

125

122

Total

503

576

425

400

343

300

410

332

300

351

*Internal Budget does not include personnel expenses.

㻌- 39 -

Unit of million yen

JAEA-Evaluation 2018-003

Personnel of ASRC

Student
Post-Doctoral Fellow
Invited Group Leader
Permanent Staff

Number of Personnel

100
80
60
40
20
0

2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

Fiscal Year
Fiscal Year 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Student

10

17

11

9

13

13

15

7

14

14

Post-doctoral Fellow

24

21

23

22

21

18

17

16

13

15

Invited Group Leader

3

4

4

4

5

5

4

4

4

5

Permanent Staff

49

43

43

45

45

46

46

44

47

51

86

85

81

80

84

82

82

71

78

85

Total

㻌
- 40 -

JAEA-Evaluation 2018-003

Approved Proposals for the REIMEI Research Program
FY 2015
No.
1
2
3
4
5
6
7

8

Principal
Investigator
Blanter, Y.M.

Unit of 1000 yen

Institution

Title of Proposal

BudgetTU Delft

Spin orbit coupling and spin mechanics

3,000

Yasutomo J.
UemuraChristoph E.
Düllmann

Columbia
University
University of
Mainz

Hyun-Chul
Kim
Tomo SuzukiMuresan
K.
Rykaczewski

Inha
University
SUBATECH

MuSR studies on exotic Mott transitions II: V2O3,(Ca,Sr)2RuO4, Na(Fe,Cu)As
Gas-phase chemistry of Sg(CO)6 – Measurementsof the stability of novel superheavyelement
compounds
Hadron Physics in Extreme Conditions at J-PARC

Zhuguo Li
Ross Springell

Oak Ridge
National Lab
Yamaguchi
University
University ofBristol

Bio- and phyto-remediation of anthropogenic
radionuclides
Alpha and beta decays properties of the heaviest
N = Z nuclei
Development of treatment method forradioactively contaminated water using new
geopolymerization technique
New electronic states emerging in actinide thinfilms; exploiting the strong spin-orbit coupling of
uranium

FY 2016
No.
1
2
3
4

5

6

Principal
Investigator
Tomo SuzukiMuresan
Timothy
Ziman
K.
Rykaczewski
Christoph E.
Düllmann

3,000
3,000
3,000
2,500
3,000
1,500

2,000

Unit of 1000 yen

Institution

Title of Proposal

SUBATECH

Bio- and phyto-remediation of anthropogenic
radionuclides
Spin dynamics and spin-orbit interactions inmagnetic nano-structures
Alpha and beta decays properties of the heaviest
N = Z nuclei
Gas-phase chemistry of Sg(CO)6 – Measurementsof the stability of novel superheavyelement
compounds
Novel Features of Mott Transitions Studied by
Muons and Neutron, and Electric-Field Gating of
Diluted Magnetic Semiconductors and Mott
Systems
Advanced Study of New Exotic Hadron Matter at
J-PARC

Institut Laue
Langevin
Oak Ridge
National Lab
University of
Mainz

Yasutomo J.
UemuraColumbia
University

Hyun-Chul
Kim

Inha
University㻌- 41 -

Budget
3,000
3,000
3,000
3,000

3,000

3,000

JAEA-Evaluation 2018-003

FY 2017No.

1

Principal
Investigator
Yasutomo J.
UemuraUnit of 1000 yen

Institution

Title of Proposal

Columbia
University

MuSR, neutron scattering, materials development
and theories of Novel Diluted Ferromagnetic
Semiconductors (DMS) and Mott Transition
Systems
Exploration of the new island of asymmetricfissionSpintronic devices using thin films of heavy
metals: understanding the role of strong spin-orbit
coupling and proximity-induced magnetism
Collaborative Studies of Baryon Spectroscopy at
J-PARC between Theory㻌 and Experiment
Spin-orbit and spin-lattice dynamics in magnetic
nanostructures
Environmental geochemistry of radium: field
investigation and ionic size dependence ofadsorption
Gas-phase chemistry of Sg(CO)6 – Optimizing
the synthesis and preparing nuclear structurestudies

Igor
Tsekhanovich
Christopher
Bell

Université deBordeaux
University ofBristol

Kenneth Hicks

6

Timothy
Ziman
YoshioTakahashi

Ohio
University
Institut Laue
Langevin
University of
Tokyo

7

Christoph E.
Düllmann

University of
Mainz

2
3
4
5

FY 2018
No.
1
2
3
4

5

6
7

Principal
Investigator
Igor
Tsekhanovich
Atsushi Ikeda
Christoph E.
Düllmann
Kenneth Hicks
Yasutomo J.
UemuraYaroslav M.
BlanterHans-Werner
HammerBudget

3,000

2,500
3,000
3,000
3,000
2,500

3,000

Unit of 1000 yen

Institution

Title of Proposal

Université deBordeaux
HZ DresdenRossendorf
University ofMainz

TU Delft

Exploration of the new island of asymmetricfissionSolid-state chemistry of multi-element systems
composed of actinides and fission products
Chemical studies of atoms and molecules ofsuperheavy elements – the cases of Nh and oftransition metal carbonyls
New Aspects of Hadron Spectroscopy andExploration of Dense Nuclear Matter at J-PARC
Search for the resonance-mode-analogue in nonsuperconducting Mott transition systems anddevelopment of MBE films of novel diluted
magnetic semiconductors
New Excitations in Spintronics

TU
Darmstadt

Universal physics in Many-Body Quantum
Systems – From Atoms to Quarks –Ohio
University
Columbia
University㻌- 42 -

Budget
3,000
2,000
3,000
3,000

3,000

3,000
1,500

JAEA-Evaluation 2018-003

Research Group for Heavy Element Nuclear Science
1. Members
Leader: Andrei Andreyev
Manager: Katsuhisa Nishio
Scientific Staff: Kazuaki Tsukada, Masato Asai, Hiroyuki Koura, Yutaka Utsuno, Tetsuya K. Sato,
Hiroyuki Makii, Kentaro Hirose, Riccardo Orlandi, Yuta Ito (May 2018～), Atsushi Toyoshima (~Jul.
2018)
Post-Doctoral Fellow: Kazuki Yoshida (Apr. 2018~), Nadine M. Chiera (Apr. 2017～Oct. 2018),
Mark J. Vermeulen (Apr. 2016~Mar. 2018), Romain Léguillon (Dec. 2013~Mar. 2016), James
Smallcombe (Apr. 2014~Jul. 2015)
Student: [2015] Y. Kaneya (D3) A. Mitsukai (M1)[2016] T. Tomitsuka (D1), A. Mitsukai (M2)[2017] T. Tomitsuka (D2), Kean Kun Ratha (D1), H. Kamada (M2), K. Tokoi (B4),
F. Endo (B4)[2018] T. Tomitsuka (D3), Kean Kun Ratha (D2), S. Tanaka (M2), R. Yanagihara (M2), K.
Tokoi (M1), H. Suzuki (B4)
2. Objectives
Studies of chemical properties of the heaviest elements and the determination of the limits ofnuclear stability are among the most interesting, but also most challenging topics in modern nuclear
physics and chemistry. To address these questions, our group focuses on nuclear and atomic structurestudies in the heaviest element region together with investigating new reaction mechanisms to accessthese exotic heavy nuclei. Particularly, we will explore the neutron-rich heavy nuclei with a future scope
to find long-predicted “island of stability”. Also, the existence of long-lived nuclei opens a newgeneration of chemistry studies of super-heavy elements (SHEs). In addition to experiments, we placeemphasis on theoretical investigations of nuclei, covering nuclear structure, reaction and fission. These
subjects are challenged by our team, strengthened by collaboration between the members having highexpertise in experimental/theoretical nuclear physics and chemistry.
3. Progress and research highlights
Multi-nucleon transfer (MNT) reaction is a unique method to produce neutron-rich heavy nuclei.
Compared to the conventional fusion reaction, the MNT reaction is an unexplored and complicatedprocess, which offers many challenging subjects. As a first step, we have built a new setup to observefeatures of MNT reactions involving radioactive target nuclides by constructing a new beam line at the
JAEA tandem accelerator facility. We stress that we successfully developed a high-resolution silicon
ΔE-E telescope with large covering angle to identify ejectile nucleus and assign the residual nucleus in
the MNT reactions. The system was then coupled to fission-fragment detection system for MNT-induced- 43 -

JAEA-Evaluation 2018-003

fission studies in these 3-4 years. Taking advantage of the high-resolving power to isolate transfer
channels, we have established a method to study fission for a large set of nuclei in a single experiment(R. Léguillon et al., Phys. Lett. B 2015). The setup is now used to generate wide data set in theunexplored neutron-rich region, by using various radioactive target nuclides (232Th, 235U, 237Np, 248Cm,…). As another characteristic feature, MNT reactions can excite the nuclei over a wide energy range,
allowing us to determine the fission barrier height in low excitation-energy region and the competition
between fission and neutron evaporation in higher excitation-energy region. The so-called multi-chancefission, i.e. fission after neutron evaporation, was found to be essential to understand the high-energy
fission data such as fission-fragment mass distribution (K. Hirose et al., Phys. Rev. Lett. 2017). The
results are important also in atomic energy applocations, especially for the design of accelerator-driven
systems (ADSs) to reduce long-lived minor actinides, generated in power plants. Our unique fission
setup opened an opportunity to use einsteinium target material (254Es, element Z=99) from Oak Ridge
National Laboratory for fission studies around neutron-rich fermium isotopes, where dramatic transition
from mass-asymmetric fission to sharp symmetric fission is found between 256Fm and 258Fm. The firstexperiments using 254Es were carried out.
Toward SHEs, the relativistic effects largely influence the electronic orbitals, resulting in possible
irregular chemical features not following the homologues. The first ionization potential (IP1) is a key
observable to unveil electronic configurations of the heaviest elements. The first successful
measurement of the IP1 was carried out for lawrencium (element 103) at the JAEA tandem accelerator
facility (T.K. Sato et al., Nature 2015). Here, we developed a new method based on a surface ionization
process coupled to an on-line mass separation technique to determine IP1 of the nuclei produced only
one atom at a time. In the follow-up experiments in 2015-2018 we have bridged the gap of IP1 foractinides by taking new data for fermium (100), mendelevium (101) and nobelium (102). The measured
IP1 values agree well with those predicted by state-of-the-art relativistic calculations performed
alongside the present measurements. The results offer a benchmark to constrain theoretical model. In
analogy to the systematic trend of IP1 for the lanthanides, the IP1 values of the heavy actinides increase
toward nobelium with filling up the 5f orbitals, then the value drops significantly at lawrencium to havethe lowest values among the actinides. These results clearly demonstrate that the 5f orbital is fully filled
at nobelium with the [Rn]5f147s2 configuration and that the next outer orbital starts being filled at Lr.
For nuclear theory, we are investigating properties of particularly neutron-rich and super-heavy
nuclei. The calculations give strong motivation to the nuclear physics community to produce andexamine new nuclides in these unexplored regions. Depending on the region of interest, we aredeveloping different methods: fully microscopic large-scale shell-model calculations for relatively lightneutron-rich nuclei and a gross theory for super-heavy nuclei. The former approach can treat nuclei moreexactly, whereas it requires elaborate numerical calculations. In this direction, we are developing new
methodologies and utilizing high-performance computing such as the JAEA supercomputer and the “Kcomputer”. One of the important results in this period is a successful description of neutron-rich nuclei
around neutron number N=28; in particular, we explain a so-called “K-isomer”, a metastable state- 44 -

JAEA-Evaluation 2018-003

formed by the alignment of angular momenta of a few nucleons, in 44S by developing a novel manybody analysis in the shell model (Y. Utsuno et al., Phys. Rev. Lett. 2015). The new finding gave large
impact on the common belief that such K isomerism occurs only in heavier nuclei with masses A>100.
In the super-heavy region, on the contrary, such an exact calculation is not practical. Instead, we areinvestigating nuclear structure with a “gross model”, where nuclear structures are calculated from themean-potential field, created by a nucleus itself and felt by nucleons. The gross model was used to more
precisely predict the β-decay properties (e.g., half-life), especially in the vicinity of the magic numbersof neutrons and protons, by considering the suppressed transition from the parent to daughter nuclei
owing to different parity states. In the neutron-rich heavy and super-heavy region, it was found that there
is a region where β-delayed fission dominates: i.e. fission promptly after the β-decay. As the process is
one of the important decay paths at the very end of the r-process, which happens in supernova explosions
or in neutron-star mergers, the results have an impact on the prediction of heaviest elements to be
produced in nature.
4.

New （or updated） strategy, research plans, and goals for next 3.5 years
The periodically appearing magic numbers for neutrons and protons in nucleus imply the existenceof new magic numbers in the extremely heavy nuclei. Theory predicts the so-called “island of stability”
in the region of super-heavy nuclei, created by the doubly closed shell structures at N=184 and Z=114
or 120(126). This specific nuclear shell structure significantly extends the limit of existence of nuclei.
It is known that conventional fusion-evaporation reactions using stable beams and available target
materials produce the relatively neutron-deficient SHN, which are further away from the “island ofstability”. Instead, MNT reactions using actinide target nuclides have a potential to access this region
by dominantly transferring neutrons from the projectile to the heavy-actinide target nucleus. Access toneutron-rich heavy- and super-heavy nuclei creates a new opportunity to investigate nuclear structureand fission studies in such exotic region. One of the good examples is the onset of new fission
mechanism, where fission is largely regulated by the two-cluster features of doubly-magic nucleus 132Sn.
Toward such an ultimate goal in long-range scope, we will develop the reaction andphysics/chemistry studies, particularly using MNT reactions. Before reaching the “island of stability”,
we will explore the neutron-rich nuclei around Z=100-104 toward the deformed shell at N=162, within
the remaining seven-year plan period (3.5years). We will take advantage of the 254Es as the heaviest
material to be used as a target, which is planned to be obtained also in 2019 and 2021 from ORNL. The
specific program includes,-

Nuclear fission and associated nuclear structures appearing in deformed nuclear shape will be
investigated for neutron-rich actinides approaching N=162. Beyond N=158 spontaneous fission is
expected to have the dominant decay modes, forming the “island of spontaneous fission”. The
MNT reactions using 254Es significantly expand the fission data such as fission barrier and fissionfragment mass distributions. Recently, we have installed more than 30 neutron detectors aroundthe MNT-fission setup in order to investigate the origin of prompt neutrons in fission and to- 45 -

JAEA-Evaluation 2018-003

elucidate the shape evolution in fission more distinctly. Furthermore, we have developed large
volume LaBr3(Ce) scintillation detectors to measure prompt γ-rays in fission, providing
information of the spins of fission fragments. These data will confine theoretical models based onstochastic theorem, such as a fluctuation-dissipation model, to give high prediction power. The
model can also deal with heavy-ion induced reactions such as MNT reactions as the key reaction
to be studied in our group. We also contribute to the atomic energy applications such as ADS, bytaking fission data for minor-actinides. In our setup, the so-called “surrogate reaction method” will
be used, where the neutron-induced data is obtained by populating the corresponding compound
nucleus by the MNT reactions. The prompt neutron multiplicity and energy spectrum in fission,required to calculate the criticality of nuclear reactor, can be a breakthough data, as the available
nuclides and neutron-enery range are extremely limited.
-

We will produce and identify new isotopes in this region, produced by MNT reactions followed byde-excitation via neutron and/or γ emissions. We will develop an accurate mass measurement
system, based on MRTOF (multi-reflection time-of-flight mass spectrograph), which will be
designed by our new member (Y. Ito et al., Phys. Rev. Lett. 2018) having expertise in this method.
The MRTOF system will be attached at the focal point of the JAEA-ISOL system to give an
unambiguous identification of nucleus, regardless of their radioactive decay pattern. This approachalso becomes important in future to explore “island of stability”, where nuclides are expected tohave very long half-lives (e.g. T1/2=30 years for 290Ds), making the decay measurement difficult.
The data will provide a benchmark of nuclear mass models and help to improve the accuracy to
predict the properties of nuclides around “island of stability”. As one of the theory staff (H. Koura)
is an expert on nuclear mass model, the subject is an ideal collaboration between theory andexperiment.

-

We will also promote nuclear structure studies with in-beam prompt gamma-ray spectroscopy to
study evolution of nuclear structure between the deformed shells at N=152 and N=162. We will
promote international collaboration (Japan-US-China) to build a highly efficient gamma-ray
detector array of Germanium clover detectors. They will be coupled with the silicon ΔE-E
telescopes and large volume LaBr3(Ce) scintillation detectors, developed by us, to identify transfer
channels and to detect high-energy transitions, respectively. The setup also works as a novel
technique to understand the MNT reaction itself. Examples are the maximum spins to be introducedin the system and the sharing of excitation energy between ejectile and recoiled nuclei, remaining
important issues not elucidated to date.

-

The influence of relativistic effects on the heaviest-element region remains one of important topics
on the chemical properties of heavy actinides. Chemical studies of a heavy element are sometimes
constrained by their short half-lives, which is particularly the case when fusion-evaporation
reactions are used to produce them, as the resulting neutron-deficient nuclei are located in theregion distant from β stability line. On the contrary, the MNT reactions can produce isotopes far
longer half-lives, e.g. 260Lr (3m), 259No (58m) and 258Md (57m), allowing other chemistry- 46 -

JAEA-Evaluation 2018-003

experiments that would require longer reaction time. In this approach, we will take new data for
Lr, No, and Md such as ionic radii, coordination numbers, and adsorption enthalpies.
The measurement of the first ionization potential (IP1) in the SHE region beyond lawrencium isalso our next goal. This requires a new experimental method. Our new idea is to generate a low-energy
SHE ion beam, which is then guided to a charge exchange cell, and abundances of positive, negative,
and neutral atomic states after passing through the cell are measured to determine IP1. In this SHE
region, strong relativistic effects on orbital electrons cause loosely-bound 6d2 configuration, stronglybound 6d10 one, large spin-orbit splitting between 7p1/2 and 7p3/2 orbitals, and loosely-bound 7p3/2
orbital, which may induce characteristic chemical peoperties of SHE. The IP1 and the adsorption
enthalpies are the sensitive probes to reveal such properties.
It is also very important to describe nuclear structure and nuclear reaction from a fully microscopic
point of view. As for nuclear structure, we will extend the mass region studied with the nuclear shellmodel (or configuration interaction) calculations, which can fully take into consideration nucleonnucleon correlations around the Fermi surface. In particular, we will focus on the A~130 region which
attracts our interest in terms of (i) that single-particle and collective degrees of freedom coexist andthus provide a good testing ground of microscopic theory, and (ii) that new types of collective motion,
whose nature is still controversial, emerge such as chiral doublet bands and transverse wobbling motion.
The subject will be promoted in collaboration with IPN-Orsay, France. Another direction is to merge
nuclear structure and reaction theories to obtain deeper insight into nuclear properties. By combing
knockout reaction theory and shell-model calculations, we will get the purity of the single-particle
wave functions and the development of pairing correlation that are difficult to know with the structurestudies alone.
In a longrer-term plan, to reach the “island of stability” using MNT reactions, it is essential to use
the intense heaviest ion beam like uranium, to irradiate heaviest actinide targets. The tandem
accelerator cannot supply such a beam. Alternatively, we have started a discussion to construct a newlinear accelerator under the collaboration with other departments in JAEA (J-PARC, Nuclear Scienceand Engineering Centre). It will be designed also to work as an injector for the J-PARC HI project:heavy-ion acceleration using the already existing synchrotron proton accelerator of J-PARC.
5. Uniqueness, advantage, and strategy for international Center of Exelence
Our experimental program is mainly carried out using the JAEA tandem accelerator facility inTokai. The advantage of this facility is to allow us to use radioactive actinide materials. Particularly, theprograms to use 254Es (T1/2=275 days) in collaboration with ORNL, US, and other facilities opens
interesting and challenging subjects, not realized and/or planned by other accelerator facilities. Ourgroup developed the necessary techniques to handle highly-radioactive material available in minutequantities. In addition, our chemical separation technique of einsteinium from other elements is essential
to prepare pure samples. High-emittance pencil beam from the tandem accelerator is most suitable tominimize the amount of material to be used.

- 47 -

JAEA-Evaluation 2018-003

We believe that the JAEA Tandem accelerator facility can still contribute greatly to the nuclear
physics and chemistry community. Nowadays, activities in the world are centralized at large-scale
facilities, often by shutting down small- and middle-power accelerators. We emphasize that ourelaborated experimental setups combined with the rarest material, such as 254Es, create unique programs
which can be driven only by us.
Our research activities so far have collected extensive interest in the community as evidenced byseveral successful international collaborative experiments on nuclear physics and chemistry. We stressagain that these activities are based on high expertise by the members. We are also continuously
supported by REIMEI research program, showing that we are always creating unique ideas in our field.
As one example to show our visibility in the community, we have organized the international Reimei
workshops on nuclear physics in Tokai every year from 2012 (six workshops in total, the next one isplanned for March 2019). Also the Reimei workshops on chemistry of SHEs have been carried out in
Germany, Switzerland, or other European countries every year. The next workshop is planned on
September 2018 at GSI, Germany, the main collaboration partner in chemistry research.
We believe these activities satisfy the conditions to be called Center of Excellence. Finally, we alsocomment our activities on education and outreach. Some members are giving lectures in university
courses, and furthermore, outreach activities for school students have been promoted (H. Koura, Phys.
Edu. 2014). The materials are attracting interests of young generation, which would motivate them towork in the fields of science and technology.
6.

Impacts to basic science and human society
Our results have large impacts in other field of fundamental science and human society.
First of all, the origin of the elements in the universe is one of the most fundamental questions.

Heavier elements in nature are believed to be created in r-process in supernova explosions or in neutronstar mergers. Nuclear fission of heavy neutron-rich isotopes, reached by r-process, are nowadays
attracting interest in this field, as the abundance of elements with medium-atomic numbers nuclides
would be largely modified by fission-fragments mass distributions. Competition between fission andneutron-capture in the last stage of r-process determines the heaviest elements to be produced in nature.
Also, our precise mass measurement in this region is essential to determine the major decay modes (SF,β-, α), again influencing the element abundance. Our program to investigate properties of neutron-richactinide nuclei has potential impact on this field.
Our research subjects have strong links to atomic energy applications. For further public acceptanceof nuclear power, it is essential to reduce the already-existing and newly produced nuclear wastes. The
use of accelerator-driven systems (ADS) is considered as one of the viable options for the incineration
and/or transmutation of the long-lived minor actinides into shorter-lived fission products. Fission data,such as fission-fragment mass distributions, for various actinide nuclides and their dependence on
excitation energy is useful to construct high-accuracy fission models, which can be the basis to evaluate
nuclear data relevant to nuclear fission. As a practical attempt, we are registering our experimental data

- 48 -

JAEA-Evaluation 2018-003

in the nuclear database such as EXFOR (IAEA) for a wider use in nuclear science and technology
communities. Inside the JAEA, we are a member of ADS developing team, involving a collaboration
with Nuclear Science and Enginieering Center, J-PARC Center, and ASRC.
Our frontier experiments on the atomic and chemical properties of the heaviest elements can expand
the knowledge not only on the SHEs but also on actinides, where many industrial applications can befound. Theoretical models with high prediction power, developed using our atom-at-a-time chemistry,would predict molecules and complexes to be formed in a certain chemical condition.
7. Summary
Heavy element nuclear science group leads unique experimental/theoretical programs in nuclear
physics and chemistry with a scope to explore neutron-rich heavy and super-heavy nuclei/elements.
These activities are realized by the tandem accelerator facility and uniquely-available radioactive target
materials such as 254Es. Multi-nucleon transfer (MNT) reactions were shown to be a powerful tool toaccess neutron-rich nuclei, as evidenced by the successful measurement of fission properties for many
actinide nuclides performed by our group. This showed a potential to use this reaction to promotededicated programs on the accurate mass measurement, nuclear structure, and atomic/chemical
properties of heavy elements during the remaining seven-year plan period.
To reach the “island of stability” by MNT reactions, we will promote the design of next generation
linear accelerator to supply the intense heaviest ion beam under the collaboration with other departments
in JAEA. The program would open a new opportunity for SHE science in Tokai, however, this is a great
ambition and a more long-term plan, going beyond the next seven-year plan period.
8. Publication list
Peer-Reviewed Papers
2015(1) Decay properties of 68,69,70Mn: Probing collectivity up to N = 44 in Fe isotopic chain,
G. Benzoni, A.I. Morales, Watanabe, S. Nishimura, L. Coraggio, N. Itaco, A. Gargano, F. Browne,
R. Daido, P. Doornenbal, Y. Fang, G. Lorusso, Z. Patel, S. Rice, L. Sinclair, P.-A. Söderström, T.
Sumikama, J. Wu, Z.Y. Xu, R. Yokoyama, H. Baba, R. Avigo, F.L. Bello Garrote, N. Blasi, A. Bracco,
F. Camera, S. Cerutia, F.C.L. Crespi, G. de Angelis, M.-C. Delattre, Zs. Dombradi, A. Gottardo, T.
Isobe, I. Kuti, K. Matsui, B. Melon, D. Mengoni, T. Miyazaki, V. Modamio-Hoybjor, S. Momiyama,
D.R. Napoli, M. Niikura, R. Orlandi, H. Sakurai, E. Sahin, D. Sohler, R. Taniuchi, J. Taprogge, Zs.
Vajta, J.J. Valiente-Dobón, O. Wieland, M. Yalcinkaya,
Phys. Lett. B 751, 107 (2015).
(2) Cluster-transfer reactions with radioactive beams: A spectroscopic tool for neutron-rich nuclei,
S. Bottoni, S. Leoni, B. Fornal, R. Raabe, K. Rusek, G. Benzoni, A. Bracco, F. C. L. Crespi, A. I.
Morales, P. Bednarczyk, N. Cieplicka-Orynczak, W. Krolas, A. Maj, B. Szpak, M. Callens, J. Bouma,
J. Elseviers, H. De Witte, F. Flavigny, R. Orlandi, P. Reiter, M. Seidlitz, N. Warr, B. Siebeck, S.

- 49 -

JAEA-Evaluation 2018-003

Hellgartner, D. Mucher, J. Pakarinen, M. Vermeulen, C. Bauer, G. Georgiev, R. V. F. Janssens, D.
Balabanski, M. Sferrazza, M. Kowalska, E. Rapisarda, D. Voulot, M. Lozano Benito, F. Wenander,
Phys. Rev. C 92, 024322 (2015).
(3) Collectivity in the light radon nuclei measured directly via Coulomb excitation,
L. P. Gaffney, A. P. Robinson, D. G. Jenkins, A. N. Andreyev, M. Bender, A. Blazhev, N. Bree, B.
Bruyneel, P. A. Butler, T. E. Cocolios, T. Davinson, A. N. Deacon, H. De Witte, D. DiJulio, J. Diriken,
A. Ekström, Ch. Fransen, S. J. Freeman, K. Geibel, T. Grahn, B. Hadinia, M. Hass, P.-H. Heenen, H.
Hess, M. Huyse, U. Jakobsson, N. Kesteloot, J. Konki, Th. Kröll, V. Kumar, O. Ivanov, S. MartinHaugh, D. Mücher, R. Orlandi, J. Pakarinen, A. Petts, P. Peura, P. Rahkila, P. Reiter, M. Scheck, M.
Seidlitz, K. Singh, J. F. Smith, J. Van de Walle, P. Van Duppen, D. Voulot, R. Wadsworth, N. Warr,
F. Wenander, K. Wimmer, K. Wrzosek-Lipska, M. Zielińska,Phys. Rev. C 91, 064313 (2015).
(4) β decay of 129Cd and excited states in 129In,
J. Taprogge, A. Jungclaus, H. Grawe, S. Nishimura, P. Doornenbal, G. Lorusso, G. S. Simpson, P.A. Söderström, T. Sumikama, Z. Y. Xu, H. Baba, F. Browne, N. Fukuda, R. Gernhäuser, G. Gey, N.
Inabe, T. Isobe, H. S. Jung, D. Kameda, G. D. Kim, Y.-K. Kim, I. Kojouharov, T. Kubo, N. Kurz, Y.
K. Kwon, Z. Li, H. Sakurai, H. Schaffner, K. Steiger, H. Suzuki, H. Takeda, Zs. Vajta, H. Watanabe,
J. Wu, A. Yagi, K. Yoshinaga, G. Benzoni, S. Bönig, K. Y. Chae, L. Coraggio, A. Covello, J.-M.
Daugas, F. Drouet, A. Gadea, A. Gargano, S. Ilieva, F. G. Kondev, T. Kröll, G. J. Lane, A. MontanerPizá, K. Moschner, D. Mücher, F. Naqvi, M. Niikura, H. Nishibata, A. Odahara, R. Orlandi, Z. Patel,
Zs. Podolyák, A. Wendt,
Phys. Rev. C 91, 054324 (2015).
(5) Experimental study of the 66Ni(d, p)67Ni one-neutron transfer reaction,
J. Diriken, N. Patronis, A. Andreyev, S. Antalic, V. Bildstein, A. Blazhev, I. G. Darby, H. De Witte,
J. Eberth, J. Elseviers, V. N. Fedosseev, F. Flavigny, Ch. Fransen, G. Georgiev, R. Gernhauser, H.
Hess, M. Huyse, J. Jolie, Th. Kröll, R. Krücken, R. Lutter, B. A. Marsh, T. Mertzimekis, D. Muecher,
R. Orlandi, A. Pakou, R. Raabe, G. Randisi, P. Reiter, T. Roger, M. Seidlitz, M. Seliverstov, C. Sotty,
H. Tornqvist, J. Van De Walle, P. Van Duppen, D. Voulot, N. Warr, F. Wenander, K. Wimmer,
Phys. Rev. C 91, 054321 (2015).
(6) Shell evolution beyond N=40: 69, 71, 73Cu,
E. Sahin, M. Doncel, K. Sieja, G. de Angelis, A. Gadea, B. Quintana, A. Gorgen, V. Modamio, D.
Mengoni, J. J. Valiente-Dobon, P. R. John, M. Albers, D. Bazzacco, G. Benzoni, B. Birkenbach, B.
Cederwall, E. Clement, D. Curien, L. Corradi, P. Desesquelles, A. Dewald, F. Didierjean, G. Duchene,
J. Eberth, M. N. Erduran, E. Farnea, E. Fioretto, G. de France, C. Fransen, R. Gernhauser, A. Gottardo,
M. Hackstein, T. Hagen, A. Hernandez-Prieto, H. Hess, T. Huyuk, A. Jungclaus, S. Klupp, W. Korten,
A. Kusoglu, S. M. Lenzi, J. Ljungvall, C. Louchart, S. Lunardi, R. Menegazzo, C. Michelagnoli, T.
Mijatovic, B. Million, P. Molini, G. Montagnoli, D. Montanari, O. Moller, D. R. Napoli, A. Obertelli,
R. Orlandi, G. Pollarolo, A. Pullia, F. Recchia, P. Reiter, D. Rosso, W. Rother, M.-D. Salsac, F.

- 50 -

JAEA-Evaluation 2018-003

Scarlassara, M. Schlarb, S. Siem, Pushpendra P. Singh, P.-A. Soderstrom, A. M. Stefanini, O.
Stezowski, B. Sulignano, S. Szilner, Ch. Theisen, C. A. Ur, M. Yalcinkaya,
Phys. Rev. C 91, 034302 (2015).
(7) 12C+p resonant elastic scattering in the Maya active target,
S. Sambi, R. Raabe, M. J. G. Borge, M. Caamano, S. Damoy, B. Fernandez-Dominguez, F. Flavigny,
H. Fynbo, J. Gibelin, G. F. Grinyer, A. Heinz, B. Jonson, M. Khodery, T. Nilsson, R. Orlandi, J.
Pancin, D. Perez-Loureiro, G. Randisi, G. Ribeiro, T. Roger, D. Suzuki, O. Tengblad, R. Thies, U.
Datta,
Eur. Phys. J. A 51, 25 (2015).
(8) Acceleration of highly charged GeV Fe ions from a low-Z substrate by intense femtosecond laser,
M. Nishiuchi, H. Sakaki, T. Zh. Esirkepov, K. Nishio, T. A. Pikuz, A. Ya. Faenov, I. Yu. Skobelev, R.
Orlandi, H. Sako, A. S. Pirozhkov, K. Matsukawa, A. Sagisaka, K. Ogura, M. Kanasaki, H. Kiriyama,
Y. Fukuda, H. Koura, M. Kando, T. Yamauchi, Y. Watanabe, S. V. Bulanov, K. Kondo, K. Imai, S.
Nagamiya,Phys. Plasmas 22, 033107 (2015).
(9) Single-neutron orbits near 78Ni: Spectroscopy of the N=49 isotope 79Zn,
R. Orlandi, D. Mucher, R. Raabe, A. Jungclaus, S. D. Pain, V. Bildstein, R. Chapman, G. de Angelis,J. G. Johansen, P. Van Duppen, A. N. Andreyev, S. Bottoni, T. E. Cocolios, H. De Witte, J. Diriken,
J. Elseviers, F. Flavigny, L. P. Gaffney, R. Gernhauser, A. Gottardo, M. Huyse, A. Illana, J. Konki, T.
Kroll, R. Krucken, J. F. W. Lane, V. Liberati, B. Marsh, K. Nowak, F. Nowacki, J. Pakarinen, E.
Rapisarda, F. Recchia, P. Reiter, T. Roger, E. Sahin, M. Seidlitz, K. Sieja, J. F. Smith, J. J. Valiente
Dobon, M. von Schmid, D. Voulot, N. Warr, F. K. Wenander, K. Wimmer,
Phys. Lett. B 740, 298 (2015).
(10) In-Source Laser Spectroscopy with the Laser Ion Source and Trap: First Direct Study of the
Ground-State Properties of 217,219Po,
D. A. Fink, T. E. Cocolios, A. N. Andreyev, S. Antalic, A. E. Barzakh, B. Bastin, D. V. Fedorov, V.
N. Fedosseev, K. T. Flanagan, L. Ghys, A. Gottberg, M. Huyse, N. Imai, T. Kron, N. Lecesne, K. M.
Lynch, B. A. Marsh, D. Pauwels, E. Rapisarda, S. D. Richter, R. E. Rossel, S. Rothe, M. D.
Seliverstov, A. M. Sjödin, C. Van Beveren, P. Van Duppen, K. D. A. Wendt,
Phys. Rev. X 5, 011018 (2015).
(11) Nature of Isomerism in Exotic Sulfur Isotopes,
Y. Utsuno, N. Shimizu, T. Otsuka, T. Yoshida, Y. Tsunoda,
Phys. Rev. Lett. 114, 032501 (2015).
(12) Large-scale shell-model calculations for unnatural-parity high-spin states in neutron-rich Cr and Fe
isotopes,
T. Togashi, N. Shimizu, Y. Utsuno, T. Otsuka, M. Honma,
Phys. Rev. C 91, 024320 (2015).
(13) Identification of deformed intruder states in semi-magic 70Ni,- 51 -

JAEA-Evaluation 2018-003

C. J. Chiara, D. Weisshaar, R. V. F. Janssens, Y. Tsunoda, T. Otsuka, J. L. Harker, W. B. Walters, F.
Recchia, M. Albers, M. Alcorta, V. M. Bader, T. Baugher, D. Bazin, J. S. Berryman, P. F. Bertone, C.
M. Campbell, M. P. Carpenter, J. Chen, H. L. Crawford, H. M. David, D. T. Doherty, A. Gade, C. R.
Hoffman, M. Honma, F. G. Kondev, A. Korichi, C. Langer, N. Larson, T. Lauritsen, S. N. Liddick,E. Lunderberg, A. O. Macchiavelli, S. Noji, C. Prokop, A. M. Rogers, D. Seweryniak, N. Shimizu,
S. R. Stroberg, S. Suchyta, Y. Utsuno, S. J. Williams, K. Wimmer, S.Zhu,
Phys. Rev. C 91, 044309 (2015).
(14) Low-Lying Structure of 50Ar and the N=32 Subshell Closure,
D. Steppenbeck, S. Takeuchi, N. Aoi, P. Doornenbal, M. Matsushita, H. Wang, Y. Utsuno, H. Baba,
S. Go, J. Lee, K. Matsui, S. Michimasa, T. Motobayashi, D. Nishimura, T. Otsuka, H. Sakurai, Y.
Shiga, N. Shimizu, P.-A. Soderstrom, T. Sumikama, R. Taniuchi, J.J. Valiente-Dobon, K. Yoneda,
Phys. Rev. Lett. 114, 252501 (2015).
(15) Nuclear structure of 37, 38Si investigated by decay spectroscopy of 37, 38Al,
K. Steiger, S. Nishimura, Z. Li, R. Gernhauser, Y. Utsuno, R. Chen, T. Faestermann, C. Hinke, R.
Krucken, M. Kurata-Nishimura, G. Lorusso, Y. Miyashita, N. Shimizu, K. Sugimoto, T. Sumikama,
H. Watanabe, K. Yoshinaga,
Eur. Phys. J. A 51, 117 (2015).
(16) Photonuclear reactions of calcium isotopes calculated with the nuclear shell model,
Y. Utsuno, N. Shimizu, T. Otsuka, S. Ebata, M. Honma,
Prog. Nucl. Energy 82, 102 (2015).
(17) Recent advances in shell evolution with shell-model calculations,Y. Utsuno, T. Otsuka, Y. Tsunoda, N. Shimizu, M. Honma, T. Togashi, T. Mizusaki,
JPS Conf. Proc. 6, 010007 (2015).
2016(18) β-delayed fission and α decay of 196At,
V.L. Truesdale, A.N. Andreyev, L. Ghys, M. Huyse, P. Van Duppen, S. Sels, B. Andel, S. Antalic, A.
Barzakh, L. Capponi, T.E. Cocolios, X. Derkx, H. De Witte, J. Elseviers, D.V. Fedorov, V.N.
Fedosseev, F.P. Heßberger, Z. Kalaninová, U. Köster, J.F. Lane, V. Liberati, K.M. Lynch, B.A. Marsh,
S. Mitsuoka, Y. Nagame, K. Nishio, S. Ota, D. Pauwels, L. Popescu, D. Radulov, E. Rapisarda, S.
Rothe, K. Sandhu, M.D. Seliverstov, A.M. Sjödin, C. Van Beveren, P. Van den Bergh, Y.
Wakabayashi,
Phys. Rev. C 94, 034308 (2016).
(19) Fission fragments mass distributions of nuclei populated by the multinucleon transfer channels of
the 18O + 232Th reaction,
R. Léguillon, K. Nishio, K. Hirose, H. Makii, I. Nishinaka, R. Orlandi, K. Tsukada, J. Smallcombe,
S. Chiba, Y. Aritomo, T. Ohtsuki, R. Tatsuzawa, N. Takaki, N. Tamura, S. Goto, I. Tsekhanovich,
C.M. Petrache, A.N. Andreyev,
Phys. Lett. B 761, 12 (2016).

- 52 -

JAEA-Evaluation 2018-003(20) Beta-delayed proton emission from 20Mg,
M.V. Lund, A.N. Andreyev, M.J.G. Borge, J. Cederkäll, H. De Witte, L.M. Fraile, H.O.U. Fynbo,
P.T. Greenlees, L.J. Harkness-Brennan, A.M. Howard, M. Huyse, B. Jonson, D.S. Judson, O.S.
Kirsebom, J. Konki, J. Kurcewicz, I. Lazarus, R. Lica, S. Lindberg, M. Madurga, N. Marginean, R.
Marginean, I. Marroquin, C. Mihai, M. Munch, E. Nacher, A. Negret, T. Nilsson, R.D. Page, S. Pascu,
A. Perea, V. Pucknell, P. Rahkila, E. Rapisarda, K. Riisager, F. Rotaru, C. Sotty, M. Stanoiu, O.
Tengblad, A. Turturica, P. Van Duppen, V. Vedia, R. Wadsworth, N. Warr,
Eur. Phys. J. A 52, 304 (2016).
(21) Review of even element super-heavy nuclei and search for element 120,
S. Hofmann, S. Heinz, R. Mann, J. Maurer, G. Münzenberg, S. Antalic, W. Barth, H.G. Burkhard, L.
Dahl, K. Eberhardt, R. Grzywacz, J.H. Hamilton, R.A. Henderson, J.M. Kenneally, B. Kindler, I.
Kojouharov, R. Lang, B. Lommel, K. Miernik, D. Miller, K.J. Moody, K. Morita, K. Nishio, A.G.
Popeko, J.B. Roberto, J. Runke, K.P. Rykaczewski, S. Saro, C. Scheidenberger, H.J. Schött, D.A.
Shaughnessy, M.A. Stoyer, P. Thörle-Pospiech, K. Tinschert, N. Trautmann, J. Uusitalo, A.V.
Yeremin,
Eur. Phys. J. A 52, 180 (2016).
(22) Remarks on the fission barriers of super-heavy nuclei,
S. Hofmann, S. Heinz, R. Mann, J. Maurer, G. Münzenberg, S. Antalic, W. Barth, L. Dahl, K.
Eberhardt, R. Grzywacz, J.H. Hamilton, R.A. Henderson, J.M. Kenneally, B. Kindler, I. Kojouharov,
R. Lang, B. Lommel, K. Miernik, D. Miller, K.J. Moody, K. Morita, K. Nishio, A.G. Popeko, J.B.
Roberto, J. Runke, K.P. Rykaczewski, C. Scheidenberger, D.A. Shaughnessy, M.A. Stoyer, P. ThörlePospiech, K. Tinschert, N. Trautmann, J. Uusitalo, A.V. Yeremin,Eur. Phys. J. A 52, 116 (2016).
(23) Examination of the surrogate ratio method for the determination of the 93Zr(n,γ)94Zr cross section
with 90,92Zr(18O,16O) 92,94Zr reactions,
S.Q. Yan, Z.H. Li, Y. B. Wang, K. Nishio, H. Makii, J. Su, Y.J. Li, I. Nishinaka, K. Hirose, Y.L. Han,
R. Orlandi, Y.P. Shen, B. Guo, S. Zeng, G. Lian, Y.S. Chen, X.X. Bai, L.H. Qiao, W.P. Liu,
Phys. Rev. C 94, 015804 (2016).
(24) Short-lived isomers in 192Po and 194Po,
B. Andel, A.N. Andreyev, S. Antalic, F. P. Heßberger, D. Ackermann, S. Hofmann, M. Huyse, Z.
Kalaninova, B. Kindler, I. Kojouharov, P. Kuusiniemi, B. Lommel, K. Nishio, R. D. Page, B.
Sulignano, P. Van Duppen,
Phys. Rev. C 93, 064316 (2016).
(25) Fast-timing study of the l-forbidden 1/2+ → 3/2+ M1 transition in 129Sn,
R. Lica, H. Mach, L.M. Fraile, A. Gargano, M.J.G. Borge, N. Marginean, C.O. Sotty, V. Vedia, A.N.
Andreyev, G. Benzoni, P. Bomans, R. Borcea, L. Coraggio, C. Costache, H. De Witte, F. Flavigny,
H. Fynbo, L.P. Gaffney, P.T. Greenlees, L.J. Harkness-Brennan, M. Huyse, P. Ibanez, D.S. Judson, J.
Konki, A. Korgul, T. Kröll, J. Kurcewicz, S. Lalkovski, I. Lazarus, M.V. Lund, M. Madurga, R.

- 53 -

JAEA-Evaluation 2018-003

Marginean, I. Marroquín, C. Mihai, R.E. Mihai, A.I. Morales, E. Nacher, A. Negret, R.D. Page, J.
Pakarinen, S. Pascu, V. Paziy, A. Perea, M. Perez-Liva, E. Picado, V. Pucknell, E. Rapisarda, P.
Rahkila, F. Rotaru, J.A. Swartz, O. Tengblad, P. Van Duppen, M. Vidal, R. Wadsworth, W.B. Walters,
N. Warr,
Phys. Rev. C 93, 044303 (2016).
(26) Towards a novel laser-driven method of exotic nuclei extraction-acceleration for fundamental
physics and technology,
M. Nishiuchi, H. Sakaki, T.Zh. Esirkepov, K. Nishio, T. A. Pikuz, A.Ya. Faenov, I.Yu. Skobelev, R.
Orlandi, H. Sako, A.S. Pirozhkov, K. Matsukawa, A. Sagisaka, K. Ogura, M. Kanasaki, H. Kiriyama,
Y. Fukuda, H. Koura, M. Kando, T. Yamauchi, Y. Watanabe, S.V. Bulanov, K. Kondo, K. Imai, S.
Nagamiya,
Plasma Phys. Rep. 42, 327 (2016).
(27) Alpha decay of 182,184Tl,
C. Van Beveren, A.N. Andreyev, A.E. Barzakh, T.E. Cocolios, R.P. de Groote, D. Fedorov, V.N.
Fedosseev, R. Ferrer, L. Ghys, M. Huyse, U. Köster, J. Lane, V. Liberati, K.M. Lynch, B.A. Marsh,
P.L. Molkanov, T.J. Procter, E. Rapisarda, K. Sandhu, M.D. Seliverstov, P. Van Duppen, M. Venhart,
M. Veselský,J. Phys. G: Nucl. Part. Phys. 43, 025102 (2016).
(28) β-decay of semi-magic 130Cd: Revision and extension of the level scheme of 130In,
A. Jungclaus, H. Grawe, S. Nishimura, P. Doornenbal, G. Lorusso, G.S. Simpson, P.-A. Soderstrom,
T. Sumikama, J. Taprogge, Z.Y. Xu, H. Baba, F. Browne, N. Fukuda, R. Gernhauser, G. Gey, N.
Inabe, T. Isobe, H.S. Jung, D. Kameda, G.D. Kim, Y.-K. Kim, I. Kojouharov, T. Kubo, N. Kurz, Y.K.
Kwon, Z. Li, H. Sakurai, H. Schaffner, Y. Shimizu, K. Steiger, H. Suzuki, H. Takeda, Zs. Vajta, H.
Watanabe, J. Wu, A. Yagi, K. Yoshinaga, G. Benzoni, S. Bonig, K.Y. Chae, L. Coraggio, J.-M.
Daugas, F. Drouet, A. Gadea, A. Gargano, S. Ilieva, N. Itaco, F.G. Kondev, T. Kroll, G.J. Lane, A.
Montaner-Piza, K. Moschner, D. Mucher, F. Naqvi, M. Niikura, H. Nishibata, A. Odahara, R. Orlandi,
Z. Patel, Zs. Podolyak, A. Wendt,
Phys. Rev. C 94, 024303 (2016).
(29) Spectroscopy of 46Ar by the (t,p) two-neutron transfer reaction,
K. Nowak, K. Wimmer, S. Hellgartner, D. Mücher, V. Bildstein, J. Diriken, J. Elseviers, L. P. Gaffney,
R. Gernhäuser, J. Iwanicki, J. G. Johansen, M. Huyse, J. Konki, T. Kröll, R. Krücken, R. Lutter, R.
Orlandi, J. Pakarinen, R. Raabe, P. Reiter, T. Roger, G. Schrieder, M. Seidlitz, O. Sorlin, P. Van
Duppen, N. Warr, H. De Witte, M. Zielińska,Phys. Rev. C 93, 044335 (2016).
(30) First observation of γ rays emitted from excited states south-east of 132Sn: The πg19/2  νf7/2 multipletof 132In83,
A. Jungclaus, A. Gargano, H. Grawe, J. Taprogge, S. Nishimura, P. Doornenbal, G. Lorusso, Y.
Shimizu, G.S. Simpson, P.-A. Soderstrom, T. Sumikama, Z.Y. Xu, H. Baba, F. Browne, N. Fukuda,- 54 -

JAEA-Evaluation 2018-003

R. Gernhauser, G. Gey, N. Inabe, T. Isobe, H.S. Jung, D. Kameda, G.D. Kim, Y.-K. Kim, I.
Kojouharov, T. Kubo, N. Kurz, Y.K. Kwon, Z. Li, H. Sakurai, H. Schaffner, K. Steiger, H. Suzuki,
H. Takeda, Zs. Vajta, H. Watanabe, J. Wu, A. Yagi, K. Yoshinaga, S. Bonig, L. Coraggio, J.-M.
Daugas, F. Drouet, A. Gadea, S. Ilieva, N. Itaco, T. Kroll, A. Montaner-Piza, K. Moschner, D. Mucher,
H. Nishibata, A. Odahara, R. Orlandi, A. Wendt,
Phys. Rev. C 93, 041301 (2016).
(31) Low-lying excitations in 72Ni,
A.I. Morales, G. Benzoni, H. Watanabe, S. Nishimura, F. Browne, R. Daido, P. Doornenbal, Y. Fang,
G. Lorusso, Z. Patel, S. Rice, L. Sinclair, P.-A. Soderstrom, T. Sumikama, J. Wu, Z.Y. Xu, A. Yagi,
R. Yokoyama, H. Baba, R. Avigo, F.L. Bello Garrote, N. Blasi, A. Bracco, F. Camera, S. Ceruti,
F.C.L. Crespi, G. de Angelis, M.-C. Delattre, Zs. Dombradi, A. Gottardo, T. Isobe, I. Kojouharov, N.
Kurz, I. Kuti, K. Matsui, B. Melon, D. Mengoni, T. Miyazaki, V. Modamio-Hoyborg, S. Momiyama,
D.R. Napoli, M. Niikura, R. Orlandi, H. Sakurai, E. Sahin, D. Sohler, H. Shaffner, R. Taniuchi, J.
Taprogge, Zs. Vajta, J.J. Valiente-Dobon, O. Wieland, M. Yalcinkaya,
Phys. Rev. C 93, 034328 (2016).
(32) Transfer Reactions with Radioactive Beams Near the N = 50 and N = 82 Shell Closures,
R. Orlandi,
Acta Phys. Pol. B 47, 803 (2016).
(33) Direct measurement of nanoscale lithium diffusion in solid battery materials using radioactive
tracer of 8Li,
H. Ishiyama, S.C. Jeong, Y.X. Watanabe, Y. Hirayama, N. Imai, H.S. Jung, H. Miyatake, M. Oyaizu,
A. Osa, Y. Otokawa, M. Matsuda, K. Nishio, H. Makii, T.K. Sato, N. Kuwata, J. Kawamura, H. Ueno,
Y.H. Kim, S. Kimura, M. Mukai,
Nucl. Instrum. Methods Phys. Res. B 376, 379 (2016).
(34) A Comprehensive Approach to Determination of Nuclear Data of Unstable Nuclei,
S. Chiba, K. Nishio, Y. Aritomo, H. Koura, O. Iwamoto, H. Makii, I. Nishinaka, K. Hirose,
EPJ Web of Conf. 106, 04004 (2016).
(35) Local fields at nonmagnetic impurity sites in a perovskite La0.7Ca0.3MnO3,
W. Sato, S. Komatsuda, A. Osa, T. K. Sato, Y. Ohkubo,
Hyperfine Interact. 237, 113 (2016).
(36) Stability and synthesis of superheavy elements: Fighting the battle against fission —example
of 254No,
A. Lopez-Martens, G. Henning, T.L. Khoo, D. Seweryniak, M. Alcorta, M. Asai, B.B. Back, P.
Bertone, D. Boilley, M.P. Carpenter, C.J. Chiara, P. Chowdhury, B. Gall, P.T. Greenlees, G. Gurdal,
K. Hauschild, A. Heinz, C.R. Hoffman, R.V.F. Janssens, A.V. Karpov, B.P. Kay, F.G. Kondev, S.
Lakshmi, T. Lauristen, C.J. Lister, E.A. McCutchan, C. Nair, J. Piot, D. Potterveld, P. Reiter, N.
Rowley, A.M. Rogers, S. Zhu,
EPJ Web Conf. 131, 03001 (2016).

- 55 -

JAEA-Evaluation 2018-003(37) First ionization potential of the heaviest actinide lawrencium, element 103,
T. K. Sato, M. Asai, A. Borschevsky, T. Stora, N. Sato, Y. Kaneya, K. Tsukada, C. E. Düllmann, K.
Eberhardt, E. Eliav, S. Ichikawa, U. Kaldor, J. V. Kratz, S. Miyashita, Y. Nagame, K. Ooe, A. Osa,
D. Renisch, J. Runke, M. Schädel, P. Th&oulm;rle-Pospiech, A. Toyoshima, N. Trautmann,
EPJ Web Conf. 131, 05001 (2016).
(38) Complex chemistry with complex compounds,
R. Eichler, M. Asai, H. Brand, N.M. Chiera, A. Di Nitto, R. Dressler, Ch.E. Düllmann, J. Even, F.
Fangli, M. Goetz, H. Haba, W. Hartmann, E. Jäger, D. Kaji, J. Kanaya, Y. Kaneya, J. Khuyagbaatar,
B. Kindler, Y. Komori, B. Kraus, J.V. Kratz, J. Krier, Y. Kudou, N. Kurz, S. Miyashita, K. Morimoto,K. Morita, M. Murakami, Y. Nagame, K. Ooe, D. Piguet, N. Sato, T.K. Sato, J. Steiner, P. Steinegger,
T. Sumita, M. Takeyama, K. Tanaka, T. Tomitsuka, A. Toyoshima, K. Tsukada, A. Türler, I. Usoltsev,
Y. Wakabayashi, Y. Wang, N. Wiehl, Y. Wittwer, A. Yakushev, S. Yamaki, S. Yano, S. Yamaki, Z.
Qin,
EPJ Web Conf. 131, 07006 (2016).
(39) Chemical properties of rutherfordium (Rf) and dubnium (Db) in the aqueous phase,
Y. Nagame, J. V. Kratz, M. Schädel,EPJ Web Conf. 131, 07007 (2016).
(40) Recoil-α-fission and recoil-α-α-fission events observed in the reaction 48Ca + 243Am,
U. Forsberg, D. Rudolph, L.-L. Andersson, A. Di Nitto, Ch.E. Düllmann, C. Fahlander, J.M. Gates
P. Golubev, K.E. Gregorich, C.J. Gross, R.-D. Herzberg, F.P. Heßberger, J. Khuyagbaatar, J.V. Kratz,
K. Rykaczewski, L.G. Sarmiento, M. Schädel, A. Yakushev, S. Åberg, D. Ackermann, M. Block, H.
Brand, B.G. Carlsson, D. Cox, X. Derkx, J. Dobaczewski, K. Eberhardt, J. Even , J. Gerl, E. Jäger,B. Kindler, J. Krier, I. Kojouharov, N. Kurz, B. Lommel, A. Mistry, C. Mokry, W. Nazarewicz, H.
Nitsche, J.P. Omtvedt, P. Papadakis, I. Ragnarsson, J. Runke, H. Schaffner, B. Schausten, Yue Shi, P.
Thörle-Pospiech, T. Torres, T. Traut, N. Trautmann, A. Türler, A. Ward, D.E. Ward, N. Wiehl,
Nucl. Phys. A 953, 117 (2016).
(41) Vacuum Chromatography of Tl on SiO2 at the Single-Atom Level,
P. Steinegger, M. Asai, R. Dressler, R. Eichler, Y. Kaneya, A. Mitsukai, Y. Nagame, D. Piguet, T. K.
Sato, M. Schädel, S. Takeda, A. Toyoshima, K. Tsukada, A. Türler, A. Vascon,
J. Phys. Chem. C 120, 7122 (2016).
(42) Stochastic Estimation of Nuclear Level Density in the Nuclear Shell Model: An Application to
Parity-Dependent Level Density in 58Ni,
N. Shimizu, Y. Utsuno, Y. Futamura, T. Sakurai, T. Mizusaki, T. Otsuka,
Phys. Lett. B 753, 13 (2016).
(43) One-neutron pickup into 49Ca: Bound neutron g9/2 spectroscopic strength at N=29,

A. Gade, J.A. Tostevin, V. Bader, T. Baugher, D. Bazin, J.S. Berryman, B.A. Brown, D.J. Hartley, E.
Lunderberg, F. Recchia, S.R. Stroberg, Y. Utsuno, D. Weisshaar, K. Wimmer,
Phys. Rev. C 93, 031601(R) (2016).

- 56 -

JAEA-Evaluation 2018-003(44) Large-Scale Shell-Model Analysis of the Neutrinoless ββ Decay of 48Ca,
Y. Iwata, N. Shimizu, T. Otsuka, Y. Utsuno, J. Menendez, M. Honma, T. Abe,
Phys. Rev. Lett. 116, 112502 (2016).
(45) High-precision quadrupole moment reveals significant intruder component in 3313Al20 ground state,
H. Heylen, M. De Rydt, G. Neyens, M.L. Bissell, L. Caceres, R. Chevrier, J.M. Daugas, Y. Ichikawa,
Y. Ishibashi, O. Kamalou, T.J. Mertzimekis, P. Morel, J. Papuga, A. Poves, M.M. Rajabali, C. Stodel,
J.C. Thomas, H. Ueno, Y. Utsuno, N. Yoshida, A. Yoshimi,
Phys. Rev. C 94, 034312 (2016).
(46) Asymmetry dependence of reduction factors from single-nucleon knockout of 30Ne at ~230
MeV/nucleon,
J. Lee, H. Liu, P. Doornenbal, M. Kimura, K. Minomo, K. Ogata, Y. Utsuno, N. Aoi, K. Li, M.
Matsushita, H. Scheit1, D. Steppenbeck, S. Takeuchi, H. Wang, H. Baba, E. Ideguchi, N. Kobayashi,
Y. Kondo, S. Michimasa, T. Motobayashi, H. Sakurai, M. Takechi, Y. Togano,
Prog. Theor. Exp. Phys. 2016, 083D01 (2016).
(47) Decay Properties of New Isotopes 234Bk and 230Am, and Even-Even Nuclides 234Cm and 230Pu,
D. Kaji, K. Morimoto, H. Haba, E. Ideguchi, H. Koura, K. Morita,
J. Phys. Soc. Jpn. 85, 015002 (2016).
2017(48) Nuclear Fission: A Review of Experimental Advances and Phenomenology,
A.N. Andreyev, K. Nishio, K.-H. Schmidt,
Rep. Prog. Phys. 82, 016301 (2018). [Review Paper](49) Determination of Fusion Barrier Distributions from Quasielastic Scattering Cross Sections towards
Superheavy Nuclei Synthesis,
T. Tanaka, Y. Narikiyo, K. Morita, K. Fujita, D. Kaji, K. Morimoto, S. Yamaki, Y. Wakabayashi, K.
Tanaka, M. Takeyama, A. Yoneda, H. Haba, Y. Komori, S. Yanou, B. J. P. Gall, Z. Asfari, H. Faure,
H. Hasebe, M. Huang, J. Kanaya, M. Murakami, A. Yoshida, T. Yamaguchi, F. Tokanai, T. Yoshida,
S. Yamamoto, Y. Yamano, K. Watanabe, S. Ishizawa, M. Asai, R. Aono, S. Goto, K. Katori, K.
Hagino,J. Phys. Soc. Jpn. 87, 014201 (2018). [Editor’s Choice](50) Experimental fission study using multi-nucleon transfer reactions,
K. Nishio, K. Hirose, H. Makii, R. Léguillon, I. Nishinaka, J. Smallcombe, R. Orlandi, S. Chiba, Y.
Aritomo, T. Ohtsuki, A.N. Andreyev, I. Tsekhanovich,
EPJ Web of Conf. 146, 00409 (2017).
(51) New measurement of the 8Li(α,n)11B reaction in a lower-energy region below the Coulomb barrier,
S. K. Das, T. Fukuda, Y. Mizoi, H. Ishiyama, H. Miyatake, Y. X. Watanabe, Y. Hirayama, S. C. Jeong,
H. Ikezoe, M. Matsuda, K. Nishio, T. Hashimoto,Phys. Rev. C 95, 055805 (2017).
(52) Identification of the crossing point at N = 21 between normal and intruder configurations,- 57 -

JAEA-Evaluation 2018-003

R. Lica, F. Rotaru, M. J. G. Borge, S. Grevy, F. Negoit, A. Poves, O. Sorlin, A. N. Andreyev, R.
Borcea, C. Costache, H. De Witte, L. M. Fraile, P. T. Greenlees, M. Huyse, A. Ionescu, S. Kisyov, J.
Konki, I. Lazarus, M. Madurga, N. Marginean, R. Marginean, C. Mihai, R. E. Mihai, A. Negret, R.
D. Page, J. Pakarinen, S. Pascu, V. Pucknell, P. Rahkila, E. Rapisarda, A. Serban, C. O. Sotty, L. Stan,
M. Stanoiu, O. Tengblad, A. Turturica, P. Van Duppen, R. Wadsworth, N. Warr,
Phys. Rev. C 95, 021301(R) (2017).
(53) Changes in mean-squared charge radii and magnetic moments of 179–184Tl measured by in-source
laser spectroscopy,
A. E. Barzakh, A. N. Andreyev, T. E. Cocolios, R. P. de Groote, D. V. Fedorov, V. N. Fedosseev, R.
Ferrer, D. A. Fink, L. Ghys, M. Huyse, U. Koster, J. Lane, V. Liberati, K. M. Lynch, B.A. Marsh, P.
L. Molkanov, T. J. Procter, E. Rapisarda, S. Rothe, K. Sandhu, M. D. Seliverstov, A. M. Sjodin, C.
Van Beveren, P. Van Duppen, M. Venhart, M. Veselsky,
Phys. Rev. C 95, 014324 (2017).
(54) Towards saturation of the electron-capture delayed fission probability: The new isotopes 240Es and
Bk,

236

J. Konki, J. Khuyagbaatar, J. Uusitalo, P.T. Greenlees, K. Auranen, H. Badran, M. Block, R. Briselete,
D.M. Cox, M. Dasgupta, A. Di Nitto, Ch.E. Düllmann, T. Grahn, K. Hauschild, A. Herzán, R.-D.
Herzberg, F.P. Heßbergerc, D.J. Hinde, R. Julin, S. Juutinen, E. Jäger, B. Kindler, J. Krier, M. Leino,
B. Lommel, A. Lopez-Martens, D.H. Luong, M. Mallaburn, K. Nishio, J. Pakarinen, P. Papadakis, J.
Partanen, P. Peura, P. Rahkila, K. Rezynkina, P. Ruotsalainen, M. Sandzelius, J. Sarén, C. Scholey, J.
Sorri, S. Stolze, B. Sulignano, Ch. Theisen, A. Ward, A. Yakushev, V. Yakusheva,
Phys. Lett. B 764, 265 (2017).
(55) Shell Evolution Beyond Z=28 and N=50: Spectroscopy of 81,82,83,84Zn,
C.M. Shand, Zs. Podolyák, M. Górska, P. Doornenbal, A. Obertelli, F. Nowacki, T. Otsuka, K. Sieja,
J.A. Tostevin, Y. Tsunoda, G. Authelet, H. Baba, D. Calvet, A. Château, S. Chen, A. Corsi, A. Delbart,
J.M. Gheller, A. Giganon, A. Gillibert, T. Isobe, V. Lapoux, M. Matsushita, S. Momiyam, T.
Motobayashi, M. Niikura, H. Otsu, N. Paul, C. Péron, A. Peyaud, E.C. Pollacco, J.-Y. Roussé, H.
Sakurai, C. Santamaria, M. Sasano, Y. Shiga, D. Steppenbeck, S. Takeuchi, R. Taniuchi, T. Uesaka,
H. Wang, K. Yoneda, T. Ando, T. Arici, A. Blazhev, F. Browne, A. Bruce, R.J. Carroll, L.X. Chung,
M.L. Cortés, M. Dewald, B. Ding, Zs. Dombrádi, F. Flavigny, S. Franchoo, F. Giacoppo, A. Gottardo,
K. Hadynska-Klek, A. Jungclaus, Z. Korkulu, S. Koyama, Y. Kubota, J. Lee, M. Lettmann, B.D.
Linh, J. Liu, Z. Liu, C. Lizarazo, C. Louchart, R. Lozeva, K. Matsui, T. Miyazaki, K. Moschner, M.
Nagamine, N. Nakatsuka, S. Nishimura, C.R. Nita, C.R. Nobs, L. Olivier, S. Ota, R. Orlandi, Z. Patel,
P.H. Regan, M. Rudigier, E. Sahin, T. Saito, P.-A. Söderström, I. Stefan, T. Sumikama, D. Suzuki,
Zs. Vajta, V. Vaquero, V. Werner, K. Wimmer, J. Wu, Z.Y. Xu,
Phys. Lett. B 773, 492 (2017).
(56) Low-lying structure and shape evolution in neutron-rich Se isotopes,
S. Chen, P. Doornenbal, A. Obertelli, T.R. Rodriguez, G. Authelet, H. Baba, D. Calvet, F. Chateau,- 58 -

JAEA-Evaluation 2018-003

A. Corsi, A. Delbart, J.-M. Gheller, A. Giganon, A. Gillibert, V. Lapoux, T. Motobayashi, M. Niikura,
N. Paul, J.-Y. Rousse, H. Sakurai, C. Santamaria, D. Steppenbeck, R. Taniuchi, T. Uesaka, T. Ando,
T. Arici, A. Blazhev, F. Browne, A.M. Bruce, R. Caroll, L.X. Chung, M.L. Cortes, M. Dewald, B.
Ding, F. Flavigny, S. Franchoo, M. Gorska, A. Gottardo, A. Jungclaus, J. Lee, M. Lettmann, B.D.
Linh, J.Liu, Z. Liu, C. Lizarazo, S. Momiyama, K. Moschner, S. Nagamine, N. Nakatsuka, C.R. Nita,
C. Nobs, L. Olivier, R. Orlandi, Z. Patel, Zs. Podolyak, M. Rudigier, T. Saito, C. Shand, P.-A.
Soderstrom, I. Stefan, V. Vaquero, V. Werner, K. Wimmer, Z. Xu,
Phys. Rev. C 95, 041302 (2017).
(57) Shape Evolution in Neutron-rich Krypton Isotopes beyond N = 60: First spectroscopy of 98,100Kr,
F. Flavigny, P. Doornenbal A. Obertelli, J. -P. Delaroche, M. Girod, J. Libert, T. R. Rodriguez, G.
Authelet, H. Baba, D. Calvet, F. Chateau, S. Chen, A. Corsi, A. Delbart, J.-M. Gheller, A. Giganon,
A. Gillibert, V. Lapoux, T. Motobayashi, M. Niikura, N. Paul, J.-Y. Rousse, H. Sakurai, C. Santamaria,
D. Steppenbeck, R. Taniuchi, T. Uesaka, T. Ando, T. Arici, A. Blazhev, F. Browne, A. Bruce, R.
Carroll, L.X. Chung, M.L. Cortes, M. Dewald, B. Ding, S. Franchoo, M. Gorska, A. Gottardo, A.
Jungclaus, J. Lee, M. Lettmann, B.D. Linh, J. Liu, Z. Liu, C. Lizarazo, S. Momiyama, K. Moschner,
S. Nagamine, N. Nakatsuka, C. Nita, C.R. Nobs, L. Olivier, R. Orlandi, Z. Patel, Zs. Podolyak, M.
Rudigier, T. Saito, C. Shand, P.A. Soederstroem, I. Stefan, V. Vaquero, V. Werner, K. Wimmer, Z.
Xu,
Phys. Rev. Lett. 113, 242501 (2017).
(58) Gamma decay of unbound neutron-hole states in 133Sn,
V. Vaquero, A. Jungclaus, P. Doornenbal, K. Wimmer, A. Gargano, J.A. Tostevin, S. Chen, E. Nacher,
E. Sahin, Y. Shiga, D. Steppenbeck, R. Taniuchi, Z.Y. Xu, T. Ando, H. Baba, F. Bello, M.N. Erduran,
S. Franchoo, K. Hadynska-Klek, A. Kusoglu, J. Liu, T. Lokotko, S. Momiyama, T. Motobayashi, S.
Nagamine, N. Nakatsuka, M. Niikura, R. Orlandi, T. Saito, H. Sakurai, P.A. Soederstroem, G. Tveten,
Zs. Vajta, M. Yalcinkaya,
Phys. Rev. Lett. 118, 202502 (2017).
(59) Type II shell evolution in A=70 isobars from the N ≥ 40 island of inversion,
A.I. Morales, G. Benzoni, H. Watanabe, Y. Tsunoda, T. Otsuka, S. Nishimura, F. Browne, R. Daido,
P. Doornenbal, Y. Fang, G. Lorusso, Z. Patel, S. Rice, L. Sinclair P.-A. Söderström, T. Sumikama, J.
Wu, Z.Y. Xu, A. Yagi, R. Yokoyama, H. Baba, R. Avigo, F.L. Bello Garrote, N. Blasi, A. Bracco, F.
Camera, S. Ceruti, F.C.L. Crespi, G. de Angelis, M.-C. Delattre, Zs. Dombradi, A. Gottardo, T. Isobe,
I. Kojouharov, N. Kurz, I. Kuti, K. Matsui, B. Melon, D. Mengoni, T. Miyazaki, V. ModamioHoybjor, S. Momiyama, D.R. Napoli, M. Niikura, R. Orlandi, H. Sakurai E. Sahin, D. Sohler, H.
Schaffner, R. Taniuchi, J. Taprogge, Zs. Vajta, J.J. Valiente-Dobón, O. Wieland, M. Yalcinkaya,
Phys. Lett. B 765, 328 (2017).
(60) Are There Signatures of Harmonic Oscillator Shells Far from Stability? First Spectroscopy of 110Zr,
N. Paul, A. Corsi, A. Obertelli, P. Doornenbal, G. Authelet, H. Baba, B. Bally, M. Bender, D. Calvet,
F. Chateau S. Chen, J.-P. Delaroche, A. Delbart, J.-M. Gheller, A. Giganon, A. Gillibert, M. Girod,- 59 -

JAEA-Evaluation 2018-003

P.-H. Heenen, V. Lapoux, J. Libert, T. Motobayashi, M. Niikura, T. Otsuka, T. R. Rodrıguez, J.-Y.
Rousse H. Sakurai, C. Santamaria, N. Shimizu, D. Steppenbeck, R. Taniuchi, T. Togashi, Y. Tsunoda,
T. Uesaka, T. Ando, T. Arici, A. Blazhev, F. Browne, A.M. Bruce, R. Carroll, L. X. Chung, M.L.
Cortes, M. Dewald, B. Ding, F. Flavigny, S. Franchoo, M. Gorska, A. Gottardo, A. Jungclaus, J. Lee,
M. Lettmann, B.D. Linh, J. Liu, Z. Liu, C. Lizarazo, S. Momiyama, K. Moschner, S. Nagamine, N.
Nakatsuka, C. Nita, C. R. Nobs, L. Olivier, Z. Patel, Zs. Podolyak, M. Rudigier, T. Saito, C. Shand,
P.-A. Soderstrom, I. Stefan, R. Orlandi, V. Vaquero, V. Werner, K. Wimmer, Z. Xu,
Phys. Rev. Lett. 118, 032501 (2017).
(61) Observation of a γ decaying millisecond isomeric state in 128Cd80,
A. Jungclaus, H. Grawe, S. Nishimura, P. Doornenbal, G. Lorusso, G.S. Simpson, P.-A. Soderstrom,
T. Sumikama, J. Taprogge, Z.Y. Xu, H. Baba, F. Browne, N. Fukuda, R. Gernhauser, G. Gey, N.
Inabe, T. Isobe, H.S. Jung, D. Kameda, G.D. Kim, Y.-K. Kim, I. Kojouharov, T. Kubo, N. Kurz, Y.K.
Kwon, Z. Li, H. Sakurai, H. Schaffner, Y. Shimizu, K. Steiger, H. Suzuki, H. Takeda, Zs. Vajta, H.
Watanabe, J. Wu, A. Yagi, K. Yoshinaga, G. Benzoni, S. Bonig, K.Y. Chae, L. Coraggio, J.-M.
Daugas, F. Drouet, A. Gadea, A. Gargano, S. Ilieva, N. Itaco, F.G. Kondev, T. Kroll, G.J. Lane, A.
Montaner-Piza, K. Moschner, D. Mucher, F. Naqvi, M. Niikura, H. Nishibata, A. Odahara, R. Orlandi,
Z. Patel, Zs. Podolyak, A. Wendt,
Phys. Lett. B 772, 483 (2017).
(62) EXILL — a high-efficiency, high-resolution setup for γ-spectroscopy at an intense cold neutron
beam facility,
M. Jentschel, A. Blanc, G. de France, U. Köster, S. Leoni, P. Mutti, G. Simpson, T. Soldner, C. Ur,
W. Urban, S. Ahmed, A. Astier, L. Augey, T. Back, P. Ba̧czyk, A. Bajoga, D. Balabanski, T. Belgya,
G. Benzoni, C. Bernards, D.C. Biswas, G. Bocchi, S. Bottoni, R. Britton, B. Bruyneel, J. Burnett,
R.B. Cakirli, R. Carroll, W. Catford, B. Cederwall, I. Celikovic, N. Cieplicka-Oryńczak, E. Clement,
N. Cooper, F. Crespi, M. Csatlos, D. Curien, M. Czerwiński, L.S. Danu, A. Davies, F. Didierjean, F.
Drouet, G. Duchêne, C. Ducoin, K. Eberhardt, S. Erturk, L.M. Fraile, A. Gottardo, L. Grente, L.
Grocutt, C. Guerrero, D. Guinet, A.-L. Hartig, C. Henrich, A. Ignatov, S. Ilieva, D. Ivanova, B.V.
John, R. John, J. Jolie, S. Kisyov, M. Krticka, T. Konstantinopoulos, A. Korgul, A. Krasznahorkay,
T. Kröll, J. Kurpeta, I. Kuti, S. Lalkovski, C. Larijani, R. Leguillon, R. Lica, O. Litaize, R. Lozeva,
C. Magron, C. Mancuso, E. Ruiz Martinez, R. Massarczyk, C. Mazzocchi, B. Melon, D. Mengoni,
C. Michelagnoli, B. Million, C. Mokry, S. Mukhopadhyay, K. Mulholland, A. Nannini, D.R. Napoli,
B. Olaizola, R. Orlandi, Z. Patel, V. Paziy, C. Petrache, M. Pfeiffer, N. Pietralla, Z. Podolyak, M.
Ramdhane, N. Redon, P. Regan, J.M. Regis, D. Regnier, R. J. Oliver, M. Rudigier, J. Runke, T. Rza̧caUrban, N. Saed-Samii, M.D. Salsac, M. Scheck, R. Schwengner, L. Sengele, P. Singh, J. Smith, O.
Stezowski, B. Szpak, T. Thomas, M. Thürauf, J. Timar, A. Tom, I. Tomandl, T. Tornyi, C. Townsley,
A. Tuerler, S. Valenta, A. Vancraeyenest, V. Vandone, J. Vanhoy, V. Vedia, N. Warr, V. Werner, D.
Wilmsen, E. Wilson, T. Zerrouki, M. Zielinska,
J. Instrum. 12, P11003 (2017).

- 60 -

JAEA-Evaluation 2018-003(63) Production of iodine radionuclides using 7Li ion beams,
I. Nishinaka, A. Yokoyama, K. Washiyama, H. Makii, K. Hashimoto,J. Radioanal. Nucl. Chem. 314, 1947 (2017).
(64) Measurement of high-energy prompt gamma-rays from neutron induced fission of U-235,
H. Makii, K. Nishio, K. Hirose, R. Orlandi, R. Leguillon, T. Ogawa, T. Soldner, F.-J. Hambsch, A.
Astier, A. Pollitt, C. Petrache, I. Tsekhanovich, L. Mathieu, M. Aiche, R. Frost, S. Czajkowski, S.
Guo, U. Koster,
EPJ Web of Conf. 146, 04036 (2017).
(65) The 95Zr(n,γ)96Zr cross sections from the surrogate ratio method and its effect on s-process
nucleosynthesis,
S.Q. Yan, Z.H. Li, Y.B. Wang, K. Nishio, M. Lugaro, A.I. Karakas, H. Makii, P. Mohr, J. Su, Y.J. Li,
I. Nishinaka, K. Hirose, Y.L. Han, R. Orlandi, Y.P. Shen, B. Guo, S. Zeng, G. Lian, Y.S. Chen, W.P.
Liu,
Astrophys. J. 848, 98 (2017).
(66) Simultaneous measurement of neutron-induced fission and capture cross sections for 241Am atneutron energies below fission threshold,
K. Hirose, K. Nishio, H. Makii, I. Nishinaka, S. Ota, T. Nagayama, N. Tamura, S. Goto, A.N.
Andreyev, M.J. Vermeulen, S. Gillespie, C. Barton, A. Kimura, H. Harada, S. Meigo, S. Chiba, T.
Ohtsuki,Nucl. Instrum. Methods Phys. Res. A 856, 133 (2017).
(67) Study of the Reaction 48Ca + 248Cm → 296Lv* at RIKEN-GARIS,
D. Kaji, K. Morita, K. Morimoto, H. Haba, M. Asai, K. Fujita, Z. Gan, H. Geissel, H. Hasebe, S.
Hofmann, M. Huang, Y. Komori, L. Ma, J. Maurer, M. Murakami, M. Takeyama, F. Tokanai, T.
Tanaka, Y. Wakabayashi, T. Yamaguchi, S. Yamaki, A. Yoshida,
J. Phys. Soc. Jpn. 86, 034201 (2017).
(68) Radiochemical study of the kinematics of multi-nucleon transfer reactions in 48Ca + 248Cm
collisions 10% above the Coulomb barrier,
M. Götz, S. Götz, J.V. Kratz, Ch.E. Düllmann, Ch. Mokry, J. Runke, P. Thörle-Pospiech, N. Wiehl,
M. Schädel, J. Ballof, H. Dorrer, J. Grund, D. Huber, E. Jäger, O. Keller, J. Krier, J. Khuyagbaatar,
L. Lens, B. Lommel, M. Mendel, K.J. Moody, P. Scharrer, B. Schausten, D. Shaughnessy, M. Schmitt,
J. Steiner, N. Trautmann, A. Yakushev, V. Yakusheva,
Nucl. Phys. A 961, 1 (2017).
(69) Application of 67Cu Produced by 68Zn(n,n′p+d)67Cu to Biodistribution Study in Tumor-Bearing
Mice,
Y. Sugo, K. Hashimoto, M. Kawabata, H. Saeki, S. Sato, K. Tsukada, Y. Nagai,
J. Phys. Soc. Jpn. 86, 023201 (2017).
(70) Measurement and Estimation of the 99Mo Production Yield by 100Mo(n,2n)99Mo,
F. Minato, K. Tsukada, N. Sato, S. Watanabe, H. Saeki, M. Kawabata, S. Hashimoto, Y. Nagai,- 61 -

JAEA-Evaluation 2018-003

J. Phys. Soc. Jpn. 86, 114803 (2017).
(71) Intruder configurations in the ground state of 30Ne,
H.N. Liu, J. Lee, P. Doornenbal, H. Scheit, S. Takeuchi, N. Aoi, K.A. Li, M. Matsushita, D.
Steppenbeck, H. Wang, H. Baba, E. Ideguchi, N. Kobayashi, Y. Kondo, G. Lee, S. Michimasa, T.
Motobayashi, A. Poves, H. Sakurai, M. Takechi, Y. Togano, J.A. Tostevin, Y. Utsuno,
Phys. Lett. B 767, 58 (2017).
(72) β decay of 38, 40Si (Tz =+5, +6) to low-lying core excited states in odd-odd 38-40P isotopes,
V. Tripathi, R.S. Lubna, B. Abromeit, H.L. Crawford, S.N. Liddick, Y. Utsuno, P.C. Bender, B.P.
Crider, R. Dungan, P. Fallon, K. Kravvaris, N. Larson, A.O. Macchiavelli, T. Otsuka, C.J. Prokop,
A.L. Richard, N. Shimizu, S.L. Tabor, A. Volya, S. Yoshida,Phys. Rev. C 95, 024308 (2017).
(73) Low-Z shore of the “island of inversion” and the reduced neutron magicity toward 28O,
P. Doornenbal, H. Scheit, S. Takeuchi, Y. Utsuno, N. Aoi, K. Li, M. Matsushita, D. Steppenbeck, H.
Wang, H. Baba, E. Ideguchi, N. Kobayashi, Y. Kondo, J. Lee, S. Michimasa, T. Motobayashi, T.
Otsuka, H. Sakurai, M. Takechi, Y. Togano, K. Yoneda,
Phys. Rev. C 95, 041301(R) (2017).
(74) Monte Carlo shell model studies with massively parallel supercomputers,
N. Shimizu, T. Abe, M. Honma, T. Otsuka, T. Togashi, Y. Tsunoda, Y. Utsuno, T. Yoshida,Phys. Scr. 92, 063001 (2017).
(75) Structure of 55Sc and development of the N=34 subshell closure,
D. Steppenbeck, S. Takeuchi, N. Aoi, P. Doornenbal, M. Matsushita, H. Wang, H. Baba, S. Go, J. D.
Holt, J. Lee, K. Matsui, S. Michimasa, T. Motobayashi, D. Nishimura, T. Otsuka, H. Sakurai, Y.
Shiga, P.-A. Söderström, S. R. Stroberg, T. Sumikama, R. Taniuchi, J. A. Tostevin, Y. Utsuno, J. J.
Valiente-Dobón, K. Yoneda,
Phys. Rev. C 96, 064310 (2017).
(76) Cross-shell excitations from the fp shell: Lifetime measurements in 61Zn,
M. Queiser, A. Vogt, M. Seidlitz, P. Reiter, T. Togashi, N. Shimizu, Y. Utsuno, T. Otsuka, M. Honma,
P. Petkov, K. Arnswald, R. Altenkirch, B. Birkenbach, A. Blazhev, T. Braunroth, A. Dewald, J.
Eberth, C. Fransen, B. Fu, H. Hess, R. Hetzenegger, R. Hirsch, J. Jolie, V. Karayonchev, L. Kaya, L.
Lewandowski, C. Müller-Gatermann, J.-M. Régis, D. Rosiak, D. Schneiders, B. Siebeck, T.
Steinbach, K. Wolf, K.-O. Zell,
Phys. Rev. C 96, 044313 (2017).
(77) In-beam γ-ray spectroscopy of 35Mg via knockout reactions at intermediate energies,
S. Momiyama, P. Doornenbal, H. Scheit, S. Takeuchi, M. Niikura, N. Aoi, K. Li, M. Matsushita, D.
Steppenbeck, H. Wang, H. Baba, E. Ideguchi, M. Kimura, N. Kobayashi, Y. Kondo, J. Lee, S.
Michimasa, T. Motobayashi, N. Shimizu, M. Takechi, Y. Togano, Y. Utsuno, K. Yoneda, H. Sakurai,
Phys. Rev. C 96, 034328 (2017).
(78) Ground-state configuration of neutron-rich 35Al via Coulomb breakup,- 62 -

JAEA-Evaluation 2018-003

S. Chakraborty, Ushasi Datta, T. Aumann, S. Beceiro-Novo, K. Boretzky, C. Caesar, B. V. Carlson,
W. N. Catford, M. Chartier, D. Cortina-Gil, G. De Angelis, P. Diaz Fernandez, H. Emling, O. Ershova,
L. M. Fraile, H. Geissel, D. Gonzalez-Diaz, H. Johansson, B. Jonson, N. Kalantar-Nayestanaki, T.
Kröll, R. Krücken, C. Langer, T. Le Bleis, Y. Leifels, J. Marganiec, G. Münzenberg, M. A. Najafi, T.
Nilsson, C. Nociforo, V. Panin, R. Plag, A. Rahaman, R. Reifarth, M. V. Ricciardi, C. Rigollet, D.
Rossi, C. Scheidenberger, H. Scheit, H. Simon, J. T. Taylor, Y. Togano, S. Typel, Y. Utsuno, A.
Wagner, F. Wamers, H. Weick, J. S. Winfield,
Phys. Rev. C 96, 034301 (2017).
(79) First online multireflection time-of-flight mass measurements of isobar chains produced by fusionevaporation reactions: Toward identification of superheavy elements via mass spectroscopy,
P. Schury, M. Wada, Y. Ito, D. Kaji, F. Arai, M. MacCormick, I. Murray, H. Haba, S. Jeong, S. Kimura,
H. Koura, H. Miyatake, K. Morimoto, K. Morita, A. Ozawa, M. Rosenbusch, M. Reponen, P. -A.
Söderström, A. Takamine, T. Tanaka, H. Wollnik,
Phys. Rev. C 95, 011305(R) (2017).
(80) Improvement to the gross theory of beta decay by inclusion of change in parity,
H. Koura, S. Chiba,
Phys. Rev. C 95, 064304 (2017).
(81) Observation of doubly-charged ions of francium isotopes extracted from a gas cell,
P. Schury, M. Wada, Y. Ito, D. Kaji, H. Haba, Y. Hirayama, S. Kimura, H. Koura, M. MacCormick,H. Miyatake, J.Y. Moon, K. Morimoto, K. Morita, I. Murray, A. Ozawa, M. Rosenbusch, M. Reponen,
A. Takamine, T. Tanaka, Y.X. Watanabe, H. Wollnik,
Nucl. Instrum. Methods Phys. Res. B 95, 160 (2017).
(82) Improvement of gross theory of beta-decay for application to nuclear data,
H. Koura, T. Yoshida, T. Tachibana, S. Chiba,
EPJ Web of Conf. 146, 12003 (2017).
(83) Detailed α-decay study of 180Tl,
B. Andel, A.N. Andreyev, S. Antalic, A. Barzakh, N. Bree, T.E. Cocolios, V.F. Comas, J. Diriken, J.
Elseviers, D.V. Fedorov, V.N. Fedosseev, S. Franchoo, L. Ghys, J.A. Heredia, M. Huyse, O. Ivanov,U. Köster, V. Liberati, B.A. Marsh, K. Nishio, R.D. Page, N. Patronis, M.D. Seliverstov, I.
Tsekhanovich, P. Van den Bergh, J. Van De Walle, P. Van Duppen, M. Venhart, S. Vermote, M.
Veselský, C. Wagemans,
Phys. Rev. C 96, 054327 (2017).
(84) Role of multichance fission in the description of fission-fragment mass distributions at highenergies,
K. Hirose, K. Nishio, S. Tanaka, R. Léguillon, H. Makii, I. Nishinaka, R. Orlandi, K. Tsukada, J.
Smallcombe, M.J. Vermeulen, S. Chiba, Y. Aritomo, T. Ohtsuki, K. Nakano, S. Araki, Y. Watanabe,
R. Tatsuzawa, N. Takaki, N. Tamura, S. Goto, I. Tsekhanovich, A. N. Andreyev,
Phys. Rev. Lett. 119, 222501 (2017).

- 63 -

JAEA-Evaluation 2018-003(85) β-delayed fission of 230Am,
G. L. Wilson, M. Takeyama, A. N. Andreyev, B. Andel, S. Antalic, W. N. Catford, L. Ghys, H. Haba,
F. P. Heßberger, M. Huang, D. Kaji, Z. Kalaninova, K. Morimoto, K. Morita, M. Murakami, K.
Nishio, R. Orlandi, A. G. Smith, K. Tanaka, Y. Wakabayashi, S. Yamaki,
Phys. Rev. C 96, 044315 (2017).㻌
(86) Study of fission using multi-nucleon transfer reactions,
K. Nishio, K. Hirose, M. Vermeulen, H. Makii, R. Orlandi, K. Tsukada, M. Asai, A. Toyoshima, T.K.
Sato, Y. Nagame, S. Chiba, Y. Aritomo, S. Tanaka, T. Ohtsuki, I. Tsekhanovich, C.M. Petrache, A.N.
Andreyev,
EPJ Web of Conf. 163, 00041 (2017).
(87) Four-dimensional Langevin approach to low-energy nuclear fission of 236U,
C. Ishizuka, M.D. Usang, F.A. Ivanyuk, J.A. Maruhn, K. Nishio, S. Chiba,
Phys. Rev. C 96, 064616 (2017).
2018(88) A new detector system for the measurement of high-energy prompt -rays for low-energy neutron
induced fission,
H. Makii, K. Nishio, K. Hirose, R. Orlandi, R. Léguillon, T. Ogawa, T. Soldner, F.-J. Hambsch, M.
Aıche, A. Astier, S. Czajkowski, R. Frost, S. Guo, U. Köster, L. Mathieu, T. Ohtsuki, C.M. Petrache,
A. Pollitt, S. Sekimoto, K. Takamiya, I. Tsekhanovich,
Nucl. Instrum. Methods Phys. Res. A 906, 88 (2018).
(89) Investigation of α clustering with knockout reactions,
K. Yoshida, K. Ogata, Y. Kanada-En’yo,
Phys. Rev. C 98, 024614 (2018).
(90) Alpha decay and beta-delayed fission: tools for nuclear physics studies,
P. Van Duppen, A.N. Andreyev,
Euroschool On Exotic Beams, Lecture Notes in Physics 948, 5, 3, 65, Eds. Ch. Scheidenberger, M.
Pfützner, Springer (2018).
(91) Charge radii and electromagnetic moments of 195–211At,
J. G. Cubiss, A. E. Barzakh, M. D. Seliverstov, A. N. Andreyev, B. Andel, S. Antalic, P. Ascher, D.
Atanasov, D. Beck, J. Bieroń, K. Blaum, Ch. Borgmann, M. Breitenfeldt, L. Capponi, T. E. Cocolios,
T. Day Goodacre, X. Derkx, H. De Witte, J. Elseviers, D. V. Fedorov, V. N. Fedosseev, S. Fritzsche,
L. P. Gaffney, S. George, L. Ghys, F. P. Heßberger, M. Huyse, N. Imai, Z. Kalaninová, D. Kisler, U.
Köster, M. Kowalska, S. Kreim, J. F. W. Lane, V. Liberati, D. Lunney, K. M. Lynch, V. Manea, B. A.
Marsh, S. Mitsuoka, P. L. Molkanov, Y. Nagame , D. Neidherr, K. Nishio, S. Ota, D. Pauwels,
L.Popescu, D. Radulov, E. Rapisarda, J. P. Revill, M. Rosenbusch, R. E. Rossel, S. Rothe, K. Sandhu,
L. Schweikhard, S. Sels, V. L. Truesdale, C. Van Beveren, P. Van den Bergh, Y. Wakabayashi, P. Van
Duppen, K. D. A. Wendt, F. Wienholtz, B. W. Whitmore, G. L. Wilson, R. N. Wolf, K. Zuber,
Phys. Rev. C 97, 054327 (2018).

- 64 -

JAEA-Evaluation 2018-003(92) Systematic shell-model study of β-decay properties and Gamow-Teller strength distributions in A
≈ 40 neutron-rich nuclei,
S. Yoshida, Y. Utsuno, N. Shimizu, T. Otsuka,
Phys. Rev. C 97, 054321 (2018).
(93) Nuclear moments of the low-lying isomeric 1+ state of 34Al: Investigation on the neutron 1p1h
excitation across N=20 in the island of inversion,
Z.Y. Xu, H. Heylen, K. Asahi, F. Boulay, J.M. Daugas, R.P .de Groote, W. Gins, O. Kamalou, A.
Koszorus, M. Lykiardopoulou, T.J. Mertzimekis, G. Neyens, H. Nishibata, T. Otsuka, R. Orset, A.
Poves, T. Sato, C. Stodel, J.C. Thomas, N. Tsunoda, Y. Utsuno, M. Vandebrouck, X.F. Yang,
Phys. Lett. B 782, 619 (2018).
(94) First Direct Mass Measurements of Nuclides around Z=100 with a Multireflection Time-of-Flight
Mass Spectrograph,
Y. Ito, P. Schury, M. Wada, F. Arai, H. Haba, Y. Hirayama, S. Ishizawa, D. Kaji, S. Kimura, H. Koura,
M. MacCormick, H. Miyatake, J. Y. Moon, K. Morimoto, K. Morita, M. Mukai, I. Murray, T. Niwase,
K. Okada, A. Ozawa, M. Rosenbusch, A. Takamine, T. Tanaka, Y. X. Watanabe, H. Wollnik, S.
Yamaki,Phys. Rev. Lett. 120, 152501 (2018).
(95) Is seniority a partial dynamic symmetry in the first νg9/2 shell?,A.I. Morales, G. Benzoni, H. Watanabe, G. de Angelis, S. Nishimura, L. Coraggio, A. Gargano, N.
Itaco, T. Otsuka, Y. Tsunoda, P. Van Isacker, F. Browne, R. Daido, P. Doornenbal, Y. Fang, G.
Lorusso, Z. Patel, S. Rice, L. Sinclair, P.-A. Soderstrom, T. Sumikama, J. J. Valiente-Dobon, J. Wu,
Z.Y. Xu, A. Yagi, R. Yokoyama, H. Baba, R. Avigo, F.L. Bello Garrote, N. Blasi, A. Bracco, A. M.
Bruce, F. Camera, S. Ceruti, F.C.L. Crespi, M.-C. Delattre, Zs. Dombradi, A. Gottardo, T. Isobe, I.
Kojouharov, N. Kurz, I. Kuti, S. Lalkovski, K. Matsui, B. Melon, D. Mengoni, T. Miyazaki, V.
Modamio-Hoybjor, S. Momiyama, D.R. Napoli, M. Niikura, R. Orlandi, Zs. Podolyak, P.H. Regan,
H. Sakurai, E. Sahin, D. Sohler, H. Schaffner, R. Taniuchi, J. Taprogge, Zs. Vajta, O. Wieland, M.
Yalcinkaya,
Phys. Lett. B 781, 706 (2018).
(96) Quasiparticle phonon model description of low-energy states in 152Pr,
P. Alexa, M. Ramdhane, G. Thiamova, G.S. Simpson, H.R. Faust, J. Genevey, U. Koster, T. Materna,
R. Orlandi, J.A. Pinston, A. Scherillo, Z. Hons,
Phys. Rev. C 97, 034327 (2018).
(97) Neutron-hole states in 131Sn and spin-orbit splitting in neutron-rich nuclei,
R. Orlandi, S.D. Pain, S. Ahn, A. Jungclaus, K.T. Schmitt, D.W. Bardayan, W.N. Catford, R.
Chapman, K. A. Chipps, J. A.Cizewski, C.G. Gross, M.E. Howard, K.L. Jones, R.L. Kozub, B.
Manning, M. Matos, K. Nishio, P.D. O’ Malley, W.A. Peters, S.T. Pittman, A. Ratkiewicz, C. Shand,
J.F. Smith, M.S. Smith, T. Fukui, J.A. Tostevin, Y. Utsuno,
Phys. Lett. B 785, 615 (2018).

- 65 -

JAEA-Evaluation 2018-003(98) 99Mo Yield Using a Large Sample Mass of MoO3 for a Sustainable Production of 99Mo,
K. Tsukada, Y. Nagai, K. Hashimoto, M. Kawabata, F. Minato, H. Saeki, S. Motoishi, M. Itoh,J. Phys. Soc. Jpn. 87, 023201 (2018).
(99) Online Chemical Adsorption Studies of Hg, Tl, and Pb on SiO2 and Au Surfaces in Preparation for
Chemical Investigations on Cn, Nh, and Fl at TASCA ,L. Lens, A. Yakushev, Ch. E. Düllmann, M. Asai, J. Ballof, M. Block, H. M. David, J. Despotopulos,
A. Di Nitto, K. Eberhardt, J. Even, M. Götz, S. Götz, H. Haba, L. Harkness-Brennan, F. P. Heßberger,
R.-D.Herzberg, J. Hoffmann, A. Hübner, E. Jäger, D. Judson, J. Khuyagbaatar, B. Kindler, Y. Komori,
J. Konki, J. V. Kratz, J. Krier, N. Kurz, M. Laatiaoui, S. Lahiri, B. Lommel, M. Maiti, A. K. Mistry,
C. Mokry, K. Moody, Y. Nagame, J. P. Omtvedt, P. Papadakis, V. Pershina, J. Runke, M. Schädel, P.
Scharrer, T. Sato, D. Shaughnessy, B. Schausten, P. Thörle-Pospiech, N. Trautmann, K. Tsukada, J.
Uusitalo, A. Ward, M. Wegrzecki, N. Wiehl, V. Yakusheva,
Radiochim. Acta 106, 949 (2018).
(100) Extraction Behavior of Mo and W from H₂SO₄ and HF/HCl Solutions into Toluene with
Aliquat336: Sulfate and Fluoride Complex Formation of Mo and W Towards Chemical Studies of
Seaborgium (Sg),A. Toyoshima, A. Mitsukai, K. Tsukada, K. Ooe, H. Haba, Y. Komori, M. Murakami, Y. Kaneya, D.
Sato, M. Asai, T. K. Sato, Y. Nagame,J. Radioanal. Nucl. Chem. 317, 421 (2018).
(101) Extraction Behavior of Rutherfordium as a Cationic Fluoride Complex with a TTA Chelate
Extractant from HF/HNO3 Acidic Solutions,
A. Yokoyama, Y. Kitayama, Y. Fukuda, H. Kikunaga, M. Murakami, Y. Komori, S. Yano, H. Haba,
K. Tsukada, A. Toyoshima,
Radiochim. Acta 107, 27 (2019).
Invited Talks at International Conferences
2015(1) Gamma-ray and particle spectroscopy near doubly-magic, exotic nuclei,
R. Orlandi,
The 8th Japan-Italy Symposium on Nuclear Physics, Wako, Japan, Mar. 7-10, 2016.
(2) Intrinsic wave functions in the shell model,
Y. Utsuno,
The 8th Japan-Italy Symposium on Nuclear Physics, Wako, Japan, Mar. 7-10, 2016.
(3) Properties of nuclear masses for heavy and superheavy nuclei,
H. Koura,
The 8th Workshop on Stop and Slow Radioisotope Beams (SSRI), RIKEN, Japan, Mar. 5, 2016.
(4) Large-scale shell-model calculations for low- and high-lying states,
Y. Utsuno,- 66 -

JAEA-Evaluation 2018-003

3rd Topical Workshop on Modern Aspects in Nuclear Structure, Bormio, Italy, Feb. 22-27, 2016.
(5) Fission study using multi-nucleon transfer reactions,
K. Nishio,
Seminar at Oak Ridge National Laboratory, Oak Ridge, USA, Feb. 16, 2016.
(6) Large-scale shell-model study of strength function,
Y. Utsuno,
International Symposium on “High-resolution Spectroscopy and Tensor Interactions” (HST15),
Osaka, Japan, Nov. 16-19, 2015.
(7) Measurement of the first ionization potential of lawrencium, element 103,
T.K. Sato,
Symposium on Nuclear Data, Tokai, Japan, Nov. 19-20, 2015.
(8) Present status and perspectives of the experimental fission study at JAEA,
K. Nishio,
Symposium on Nuclear Data, Tokai, Japan, Nov. 19-20, 2015.
(9) Experimental fission study programs at JAEA,
K. Nishio,
Seminar at Institute of Laue-Langevin, Nov. 12, 2015.
(10) First Ionization Potential Measurement of Heaviest Actinides, Lawrencium and Nobelium,
T.K. Sato,
Mainz Seminar, Mainz, Germany, Oct. 26, 2015.
(11) First ionization potential measurement of heaviest actinides,
T.K. Sato,
14th Workshop on Recoil Separator for Superheavy Element Chemistry (TASCA 15), Darmstadt,
Germany, Oct. 23, 2015.
(12) Research activity at the JAEA tandem facility,
K. Nishio,
Frontier of gamma-ray spectroscopy (GAMMA15), Osaka, Japan, Oct. 1-3, 2015.
(13) Study for fission using multi-nucleon transfer reactions,
K. Nishio,
The 5th International Workshop on Compound-Nuclear Reactions and Related Topics (CNR*15),
Tokyo, Japan, Oct. 19-23, 2015.
(14) First Ionization Potential Measurement of Heaviest Actinides, Lawrencium and Nobelium,
T.K. Sato,
Nustar Week 2015, Warsaw, Poland, Sep. 25, 2015.
(15) Current frontiers and perspectives in large-scale shell-model study,
Y. Utsuno,
RIBF Users Meeting 2015, Wako, Japan, Sep. 10-11, 2015.
(16) Transfer reactions with radioactive beams near N=50 and N=82,- 67 -

JAEA-Evaluation 2018-003

R. Orlandi,
XXXIV Mazurian Lakes Conference on Physics: Frontiers in Nuclear Physics, Piaski, Poland, Sep.
6-13, 2015.
(17) Study for multi-nucleon transfer induced fission at JAEA,
K. Nishio,
XXXIV Mazurian Lakes Conference on Physics: Frontiers in Nuclear Physics, Piaski, Poland, Sep.
6-13, 2015.
(18) Three-dimensional nuclear chart —understanding nuclear physics and nucleosynthesis in stars,
H. Koura,
The 8th Japan-Korea Joint Summer School on Accelerator & Beam Science, Nuclear Data, Radiation
Engineering and Reactor Physics, Tokai, Japan, Aug. 16-21, 2015.
(19) Low-energy fission with radioactive beams,
A.N. Andreyev,
The 12th International Nucleus-Nucleus Collisions (NN2015), Catania, Italy, Jun. 22-26, 2015.
(20) First Ionization Potentials of Heaviest Actinides, Lawrencium and Nobelium,
T.K. Sato,
The 5th International Conference on the Chemistry ond Physics of the Transactinide Elements(TAN15), Urabandai, Fukushima, Japan, May 25-29, 2015.
(21) Probing shell evolution with large-scale shell-model calculations,Y. Utsuno,
International Collaborations in Nuclear Theory: Theory for open-shell nuclei near the limits ofstability, East Lansing, USA, May 11-29, 2015.
(22) Fission study using multi-nucleon transfer reaction,
K. Nishio, K. Hirose, R. Leguillon, H. Makii, R. Orlandi, I. Nishinaka, J. Smallcombe, S. Chiba, S.
Araki, Y. Watanabe, R. Tatsuzawa, N. Takaki, T. Ohtsuki, A. Andreyev,
International Conference of Isospin, Structure, Reactions and Energy of Symmetry, CastáPapiernicka Centre, Slovakia, May 1-6, 2015.
(23) Shell and shape evolution in exotic nuclei,
Y. Utsuno,
Korean Physical Society (KPS) Spring Meeting 2015, Daejeon, Korea, Apr. 22-24, 2015.
(24) Chemical studies of the heaviest elements at JAEA,
Y. Nagame,
International Symposium on Super Heavy Nuclei 2015, College Station, Texas, USA, Mar. 31-Apr.
2, 2015.
(25) In-beam fission study at JAEA,
K. Nishio, K. Hirose, R. Leguillon, H. Makii, I. Nishinaka, R. Orlandi, K. Tsukada, S. Chiba, Y.
Aritomo, T. Ohtsuki,
International Symposium on Super Heavy Nuclei 2015, College Station, Texas, USA, Mar. 31-Apr.

- 68 -

JAEA-Evaluation 2018-003

2, 2015.
(26) First Ionization Energy Measurements of Heaviest Actinides, Lawrencium and Nobelium,
T.K.Sato,
The International Chemical Congress of Pacific Basin Societies 2015 (PACIFICHEM2015),
Honolulu, Hawaii, USA, Dec. 15-20, 2015.
2016(27) Measurement of High-Energy Prompt Fission γ-rays in Cold Neutron Induced Fission of 235U,
K. Nishio,
6th Workshop on Nuclear Fission and Spectroscopy of Neutron-Rich Nuclei, Chamrousse, France,
Mar. 21-24, 2017.
(28) Measurement of prompt γ-rays from neutron induced fission of 235U,
H. Makii,
Shapes and Symmetries in Nuclei: from Experiment to Theory (SSNET Workshop), Gif-sur-Yvette,
France, Nov. 7-11, 2016.
(29) Study of fission using multi-nucleon transfer reactions,
K. Nishio,
Sixth International Conference on Fission and Properties of Neutron-rich Nuclei, Sanibel Island,
Florida, USA, Nov. 6-12, 2016.
(30) Low energy fission and beta-delayed fission with radioactive beams,
A.N. Andreyev,
Sixth International Conference on Fission and Properties of Neutron-rich Nuclei, Sanibel Island,
Florida, USA, Nov. 6-12, 2016.
(31) Fission properties of neutron-rich actinide nuclei using multi-nucleon transfer reactions,
K. Nishio,
Fall Meeting of Korean Physical Society, Gwangju, Korea, Oct. 19-21, 2016.
(32) Improvement of gross theory of beta-decay for application to nuclear data,
H. Koura,International Conference on Nuclear Data for Science and Technology (ND2016), Bruges, Belgium,
Sep. 11-16, 2016.
(33) Experimental fission study using multi-nucleon transfer reaction,
K. Nishio,
International Conference on Nuclear Data for Science and Technology (ND2016), Bruges, Belgium,
Sep. 11-16, 2016.
(34) Chemistry of the heaviest actinides and early transactinides —Experimental achievements andperspectives,
Y. Nagame,9th International Conference on Nuclear and Radiochemistry (NRC9), Helsinki, Finland, Aug. 29Sep. 2, 2016.

- 69 -

JAEA-Evaluation 2018-003(35) Measurements of the first ionization potentials of the heaviest actinides,
T.K. Sato,15th Workshop on Recoil Separator for Superheavy Element Chemistry (TASCA16), Darmstadt,
Germany, Aug. 25-26, 2016.
(36) Neutron orbits near doubly-magic 78Ni and 132Sn from reactions with radioactive beams,
R. Orlandi,
Direct reactions with exotic beams (DREB2016), Halifax, Canada, Jul. 11-15, 2016.
(37) Study of fission using multi-nucleon transfer reactions,
K. Nishio,
Nuclear Structure 2016 (NS2016), Knoxville, USA, Jul. 24-29, 2016.
(38) Chemistry of superheavy elements,
Y. Nagame,The 71st Fujiwara seminar - Shimoda 2016 - International Symposium on Interplay between
Hadronic, Nuclear and Atomic Physics, Izu-shimoda, Japan, Jul. 6-8, 2016.
(39) Shell-model applications to gamma-ray strength function and level density,
Y. Utsuno,
NUSPIN 2016 Workshop of the Nuclear Spectroscopy Instrumentation Network and AGATA
Physics Workshop, Venice, Italy, Jun. 27-Jul. 1, 2016.
(40) Ionization potentials of the heaviest actinides,
T.K. Sato,
ISOLDE Seminar, Geneva, Switzerland, Jun. 9, 2016.
(41) Chemical properties of Rf and Db in the aqueous phase,
Y. Nagame,
Nobel symposium NS 160 “Chemistry and Physics of Heavy and Superheavy Elements”, Bäckaskog
Castle in Scania, Sweden, May 29-Jun. 3, 2016.
(42) Ionization potentials of the heaviest actinides,
T.K. Sato,
Nobel symposium NS 160 “Chemistry and Physics of Heavy and Superheavy Elements”, Bäckaskog
Castle in Scania, Sweden, May 29-Jun. 3, 2016.
2017(43) Consistent description of shell gaps and deformed states around 16O and 40Ca,
Y. Utsuno,
Intenational Conference on Frontiers in Gamma ray Spectroscopy (FIG 2018), Mumbai, India, Mar.
12-14, 2018.
(44) Fission with radioactive beams,
A. N. Andreyev,“Fission in 21st Century” at IVth Topical Workshop on Modern Aspects in Nuclear Structure,
Bormio, Italy, Feb. 19-25, 2018.

- 70 -

JAEA-Evaluation 2018-003(45) Fission and nuclear-structure studies using the 254Es target,
M. Asai,
The 2017 Symposium on Nuclear Data, Tokai, Japan, Nov. 16-17, 2017.
(46) Fission study using multi-nucleon transfer reaction,
K. Nishio,
Impact of Exotic Nuclear Structure on Explosive Nucleosynthesis, Beijing, China, Nov. 23-24, 2017.
(47) Nuclear mass and decay of neutron-rich, heavy and superheavy nuclei relevant to r-process
Nucleosynthesis,
H. Koura,Impact of Exotic Nuclear Structure on Explosive Nucleosynthesis, Beijing, China, Nov. 23-24, 2017.
(48) Shell-model study for the A∼130 region,
Y. Utsuno, N. Shimizu, M. Honma, T. Otsuka,
Shapes and Symmetries in Nuclei: from Experiment to Theory (SSNET’17), Gif-sur-Yvette, France,
Nov. 6-10, 2017.
(49) First ionization potentials of the heaviest actinides,
Y. Nagame,
Shapes and Symmetries in Nuclei: from Experiment to Theory (SSNET’17), Gif sur Yvette, France,
Nov. 6-10, 2017.
(50) Nuclear fission and structure studies using 254Es,
K. Nishio,
RCNP International Workshop, Physics Opportunities using CAGRA and RCNP tracking Ge detector,
Osaka University, Japan, Oct. 10-12, 2017.
(51) Recent achievements and future challenges in the heaviest element chemistry,
Y. Nagame,
9th Workshop on the Chemistry of the Heaviest Elements (CHE9), Ascona, Switzerland, Oct. 8-11,2017.
(52) Chemistry of the heaviest elements,
Y. Nagame,
6th Asian-Pacific Symposium on Radiochemistry (APSORC17), Jeju Island, Korea. Sept. 17-22,2017.
(53)Fission studies using multi-nucleon transfer reactions,
K. Nishio,
3rd International Symposium on Superheavy Elements —Challenges in the studies of super heavy
nuclei and atoms, Kazimierz Dolny, Poland, Sep. 10-14, 2017.
(54) First ionization potentials of the heaviest elements,
Y. Nagame,3rd International Symposium on Superheavy Elements —Challenges in the studies of super heavy
nuclei and atoms, Kazimierz Dolny, Poland, Sep. 10-14, 2017.

- 71 -

JAEA-Evaluation 2018-003(55) Redox studies of the heaviest actinides,
Y. Nagame,254th ACS National Meeting & Exposition, Washington, DC, USA, Aug. 20-24, 2017.
(56) First Ionization Potentials of Heavy Actinides,
T. K. Sato,
Actinides 2017, Sendai, Japan, Jul. 9-14, 2017.
(57) Properties of nuclear masses of heavy and neutron-rich nuclei,
H. Koura,
China-Japan collaboration workshop on “Nuclear mass and life for unravelling mysteries of rprocess”, Tsukuba, Japan, Jun. 26-28, 2017.
(58) Probing proton-neutron pairing with Gamow-Teller strengths in two-nucleon configurations,Y. Utsuno,Workshop on “Probing fundamental interactions by low energy excitations — Advances intheoretical nuclear physics”, Stockholm, Sweden, Jun. 5-9, 2017.
(59) Fission study using multi-nucleon transfer reaction at JAEA tandem,
K. Nishio,
Seminar at China Institute of Atomic Energy, Beijing, China, Jun. 7, 2017.
(60) Fission study using multi-nucleon transfer reaction at JAEA tandem,
K. Nishio,
THEORY-4 Scientific Workshop, Varna, Bulgaria, Jun. 20-22, 2017.
(61) First Ionization Potentials of Heavy Actinide Elements,
T.K.Sato,
Symposium “Perspective of Superheavy Element Science” on the 72th Annual Meeting of The
Physical Society of Japan, Osaka, Japan, Mar. 17, 2017.
(62) Ionization Potential Measurements of the Heaviest Actinides,
T.K.Sato,
254th ACS National Meeting & Exposition, Washington DC, USA, Aug. 20-24, 2017.
2018(63) Determination of the first ionization potentials of heavy actinides based on an atom-at-a-time scale,Y. Nagame,4th International Conference on Physics (Physics 2018), Berlin, Germany, Sep. 17-18, 2018.
(64) β-decay properties and Gamow-Teller distributions in neutron-rich nuclei around A=40,
Y. Utsuno,
International Conference on Nuclear Structure and Related Topics (NSRT 2018), Burgas, Burgaria,
Jun. 4-8, 2018.
(65) Measurements of the First Ionization Potentials of Heavy Actinides, Fm (Z = 100), Md (Z = 101),
No (Z = 102) and Lr (Z = 103),
T.K.Sato,- 72 -

JAEA-Evaluation 2018-003

Nuclear Structure 2018, East Lansing, USA, Aug. 5-10, 2018.
Invited Talks in Reimei International Workshops organized by our group2015(1) Experimental fission study of proton-rich nuclei,
A. Andreyev,
27th ASRC International Workshop on Nuclear Fission and Exotic Nuclei, Tokai, Ibaraki, Japan,
Dec. 1-2, 2015.
(2) Measurement of high-energy γ-rays in 235U(nth,f),
H. Makii ,27th ASRC International Workshop on Nuclear Fission and Exotic Nuclei, Tokai, Ibaraki, Japan,
Dec. 1-2, 2015.
(3) Future facility using proton beam at J-PARC,
K. Nishio,
27th ASRC International Workshop on Nuclear Fission and Exotic Nuclei, Tokai, Ibaraki, Japan,
Dec. 1-2, 2015.
(4) Measurement of the first ionization potential of Lr,
T. Sato,27th ASRC International Workshop on Nuclear Fission and Exotic Nuclei, Tokai, Ibaraki, Japan,
Dec. 1-2, 2015.
(5) Study of fission using multi-nucleon transfer reactions,
K. Hirose,
27th ASRC International Workshop on Nuclear Fission and Exotic Nuclei, Tokai, Ibaraki, Japan,
Dec. 1-2, 2015.
(6) Shell model calculations for Gamow-Teller strength function,
Y. Utsuno,
27th ASRC International Workshop on Nuclear Fission and Exotic Nuclei, Tokai, Ibaraki, Japan,
Dec. 1-2, 2015.
2016(7) Measurement of high-energy prompt fission gamma-rays in 235U(nth,f),
H. Makii,
40th ASRC International Workshop “Experimental and Theoretical Advances in Fission and Heavy
Nuclei”, Tokai, Japan, Dec. 12-13, 2016.
(8) Study of fission using multi-nucleon transfer reactions,
K. Hirose,
40th ASRC International Workshop “Experimental and Theoretical Advances in Fission and Heavy
Nuclei”, Tokai, Japan, Dec. 12-13, 2016.
(9) Fission studies for neutron-rich Fm, Md, No, and Lr isotopes using ISOL,- 73 -

JAEA-Evaluation 2018-003

M. Asai,
40th ASRC International Workshop “Experimental and Theoretical Advances in Fission and Heavy
Nuclei”, Tokai, Japan, Dec. 12-13, 2016.
2017(10) Fission study using multi-nucleon transfer reactions,
K. Hirose,
ASRC International Workshop “Workshop for Einsteinium Campaign”, Tokai, Japan, Nov. 7-8, 2017.
(11) Nuclear structure study using Es254 target in CAGRA collaboration,
R. Orlandi,
ASRC International Workshop “Workshop for Einsteinium Campaign”, Tokai, Japan, Nov. 7-8, 2017.
(12) JAEA ISOL facility - Planned experiments,
M. Asai,
ASRC International Workshop “Workshop for Einsteinium Campaign”, Tokai, Japan, Nov. 7-8, 2017.
(13) Fission isomer studies for neutron-rich actinide nuclei,
H. Makii,
ASRC International Workshop “Workshop for Einsteinium Campaign”, Tokai, Japan, Nov. 7-8, 2017.
(14) Nuclear mass and decay of neutron-rich actinide nuclei relevant to r-process nucleosynthesis,
H. Koura,
ASRC International Workshop “Workshop for Einsteinium Campaign”, Tokai, Japan, Nov. 7-8, 2017.
(15) Chemical purification of actinide elements at JAEA laboratory,
K. Tsukada,
ASRC International Workshop “Workshop for Einsteinium Campaign”, Tokai, Japan, Nov. 7-8, 2017.
Books and Scientific Articles
2015(1) インビームγ線分光による新魔法数の発見,
Discovery of New Magic Number via In-Beam γ-ray Spectroscopy,
S. Takeuchi, D. Steppenbeck, Y. Utsuno,
日本物理学会誌, BUTSURI 70, 535 (2015) (in Japanese).
(2) 103 番元素が解く、周期表のパズル ―ローレンシウムのイオン化エネルギー測定に成功―,
Where is an appropriate place for element 103 on the periodic table?; Measurement of the firstionization potential of lawrencium,
T.K. Sato,
日本原子力学会誌, Journal of Atomic Energy Sociertyof Japan, ATOMOΣ, 57, 741 (2015) (inJapanese).
(3) 103 番元素で見つけた周期表の綻び㻌 ローレンシウムのイオン化エネルギー測定に成功,
Discrepancy in the periodic table appears at element 103; Successful measurement of the firstionization potential of lawrencium, element 103,

- 74 -

JAEA-Evaluation 2018-003

T.K. Sato, Y. Nagame, K. Tsukada,
日本化学学会誌「化学と工業」, Chemistry and Chemical Industry 68, 824 (2015) (in Japanese).
(4) ローレンシウムがアクチノイド最後の元素であることを証明 ―103 番元素の第一イオン化エネル
ギー測定に成功―,The First ionization potential of element 103 successfully measured for the first time substantiatedthat lawrencium is the last member of actinide series,
T.K. Sato,
Isotope News 740, 16 (2015) (in Japanese).
(5)周期表の書き換えも？ 103 元素 Lr のイオン化エネルギー測定に成功,
Successful measurement of the first ionization potential of lawrencium, element 103,
T.K. Sato,
サイエンスポータル オピニオン, Science Portal: Opinion, Jul. 8 (2015) (in Japanese).
(6) 表面電離法によるローレンシウムのイオン化エネルギー測定,
Measurement of the first ionization energy of lawrencium (Z = 103) by surface ionization technique,T.K. Sato,
放射化学, Housha Kagaku 32, 34 (2015) (in Japanese).
2016(7) Lawrencium’s place at the table,
Y. Nagame,
Nature Chem. 8, 282 (2016).
(8) 103 番元素が周期表を変える?！ ―ローレンシウムの第一イオン化エネルギーの測定から―,
Does element-103 change the periodic table of elements ?!; The First ionization potential oflawrencium,
T.K. Sato,
化学, Chemistry 71, 12 (2016) (in Japanese).
2017(9) ニホニウムとその次の元素へ…,
Nihonium, and the next elements...,H. Sakurai, A. Shinohara, H. Koura, O. Kamigaito, K. Morimoto, H. Haba,
Isotope News Special Issue 2, 2 (2018) (in Japanese).
(10)日本原子力学会誌・連載講座㻌 核データ研究の最前線㻌 第 4 回“核図表～壮大なる原子核の地
形図～”,
Serial Lecture: Forefront of Nuclear Data. Vol.4, “Chart of Nuclides~Magnifient Topographic mapof nuclides”,
H. Koura, F. Minato, H. Iimura,
日本原子力学会誌, Journal of Atomic Energy Socierty of Japan, ATOMOΣ 60, 35 (2018) (inJapanese).
(11)日本原子力学会誌・連載講座㻌 核データ研究の最前線㻌 第 3 回“核分裂データの最前線：実験- 75 -

JAEA-Evaluation 2018-003と理論”,
Serial Lecture: Forefront of Nuclear Data. Vol.3, “Forefront of Fission data: Experiment and Theory”,
K. Nishio, S. Chiba,
日本原子力学会誌, Journal of Atomic Energy Socierty of Japan, ATOMOΣ 59, 717 (2017) (inJapanese).
(12) 核化学概説―核図表をもとに―（ヘッドライン超重元素の化学 ニホニウムの誕生とその周辺）,
Introductory Nuclear Chemistry ―with nuclear chart―,
H. Koura,
化学と教育, Chemistry and Education 63, 108 (2017) (in Japanese).
2018(13) 超重核の殻構造を実験的に探る㻌 （連載講座「重元素・超重元素の科学」）,
Experimental studies on shell structure of superheavy nuclei,
M. Asai,
RADIOISOTOPES 67, 291 (2018) (in Japanese).
(14)超重元素の核的性質（理論）―超重核の安定の島―㻌 （連載講座「重元素・超重元素の科学」）
Nuclear properties of super heavy elements (Theory) ―Island of stability of superheavy nuclei―,
H. Koura,
RADIOISOTOPES 67, 267 (2018) (in Japanese).
Patents
None
Awards(1) Highlight of 2014, Physics Education (IOP): Three-dimensional nuclear chart —understanding
nuclear physics and nucleosynthesis in stars,
H. Koura (Mar. 2015).
(2) 平成 28 年度科学技術分野の文部科学大臣賞科学技術賞：シングルアトム分析法の開発と超重元素の化学的性質,
Prizes for Science and Technology (Research Category), The Commendation for Science andTechnology by the Minister of Education, Culture, Sports, Science and Technology, Japan (2016):
Developments of Single-atom Analysis and Chemical Studies for Superheavy Elements,
Y. Nagame, K. Tsukada, M. Asai (Apr. 2016).
(3) 平成 28 年度朝日賞：113 番元素ニホニウム（Nh）の発見と命名,
ASAHI Awards FY2016: Discovery and Naming of Element 113 Nihonium (Nh),Element 113 Research Group (Leader: K. Morita), H. Koura, K. Tsukada, S. Mitsuoka et al. (Jan.
2016).
(4) 日本物理学会論文賞特別表彰： 113 番元素関連の JPSJ 掲載４論文に対して,Outstanding Paper Award of the Physical Society of Japan, The Physical Society of Japan, Special- 76 -

JAEA-Evaluation 2018-003

Commendation: The four papers related to the synthesis of the 113th element in JPSJ,
Research Group for the 113th Element (Leader: K. Morita), H. Koura, K. Tsukada, S. Mitsuoka et al.
(Mar. 2017).
(5) Congressi Stefano Franscini and ETH Zurich Award for Best Contribution (CSF Award for young
scientists at 9th Workshop on the Chemistry of the Heaviest Elements (CHE9)): Unexpectedtransport of a volatile At species to the Cryo-On-Line- Detector (COLD) setup,N. M. Chiera (Oct. 2017).
(6) 2017 年度核データ研究会㻌 優秀ポスター賞： 18O+237Np の多核子移行反応を用いた核分裂片の質量数分布の測定,
Young Student Poster Award, Nuclear Data Meeting 2017, Tokai, Japan: Measurement of fission
fragment mass distributions using multinucleon transfer channels of

O+237Np,

18

M. J. Vermeulen (Nov. 2017).
(7) 日本学術振興会㻌 平成 29 年度特別研究員等審査会専門委員（書面担当）表彰,
Excellent Reviewer of the Screening Committee for JSPS Research Fellowship for Young
Researchers,
Y. Utsuno (Aug. 2018).
Press Release(1) The Newest Nuclear Decay Data in Hands ―Completion of a comprehensive portable nuclear decay
data map, “JAEA Chart of the Nuclides 2014”―,
H. Koura, F. Minato (Mar. 2015).
(2) Measurement of the first ionization potential of lawrencium (element 103) ― Unravelling
Relativistic Effects in the Heaviest Actinide Element―,
T.K. Sato, M. Asai, K. Tsukada, Y. Nagame (Apr. 2015).
(3) Large-scale nuclear-structure calculation for constraining the masses of neutrinos using thesupercomputer,
T. Otsuka, N. Shimizu, Y. Iwata, Y. Utsuno (Mar. 2016).
(4) Establishing a new method to take nuclear fission data ―Opening a new region for fission research―,
K. Nishio, K. Hirose, S. Chiba, Y. Aritomo (Aug. 2016).
(5) Experiments using einsteinium isotope, element 99 ― First experiments under the Japan-US
collaboration―,
K. Nishio (Aug. 2017).
(6) Role of Multichance Fission in the Description of Fission-Fragment Mass Distributions at HighEnergies,
K. Hirose, K. Nishio, S. Chiba, S. Tanaka (Nov. 2017).

- 77 -

JAEA-Evaluation 2018-003

Multi-nucleon transfer reactions and
原子核構造（理論）
its application ②
to study
fission (Expt. Nuclear Physics)
We developed a system to study fissions ofvarious actinide nuclei using multi-nucleon
transfer (MNT) reactions.

The role of multi-chance fission (neutron
evaporation prior to fission) on the fissionfragment mass distributions was elucidated.

R. Léguillon et al., Phys. Lett. B 761, 125 (2016).

K. Hirose et al., Phys. Rev. Lett, 119, 222501 (2017).

( Press release 26 Aug 2016.)( Press release 30 July 2017.)

Energy deposition in ΔE detectors (MeV)

Reactions using targets (238U,232Th, 237Np,248Cm)
have been completed to obtain fission fragment mass
distributions for ~60 nuclides.

Ejectile energy (MeV)

New methods opens a fission and nuclear
structure studies for neutron-rich nuclei, notreached by other reactions.

The results have impact on the evaluation of highenergy fission data (e.g. ADS system) anddevelopment of nuclear fission model.

Nh
Ts Og
Mcof heavy
Measurements of the 1st ionization potential② 原子核構造（理論）actinides using the surface ionization method
-

FmMd
MdNo
NoLrLrMeasured IP1 values agree well withthose predicted by state-of-the-art
relativistic calculations
Present results unequivocally verify
the actinide series ends with Lr[Rn]5f147s2
New data

Filling up 5f orbital[Rn]5f147s27p1/2[1] T. K. Sato et al., Nature 520 (2015) 209.
[2] T. K. Sato et al., J. Am. Chem. Soc., submitted for publication, 2018.

- 78 -

JAEA-Evaluation 2018-003

Nature of isomerism in neutron-rich nucleus 44S (Nuclear Theory)“K-isomer” is a metastable state formed by the alignment of angular momenta of afew nucleons. So far, it was found only in nuclei heavier than mass number A=100.
K=0 K=4•

Mysterious 4+

1

state in 44S– Strongly hindered E2 transition in contrast to theusual case.
•

What we found– This unexpected isomerism is due to thedominance of a K=4 state.

•

Impact of this work
– Such a high-K isomer has not been known in lightnuclei. Strong motivation for experiment.
– Developing a tool to analyze the intrinsic wave
function.

K=4

K=0

collective rotation 2-particle rotation

Y. Utsuno et al., Phys. Rev. Lett. 114, 032501 (2015).

Future plans
toward the Island of Stability② 原子核構造（理論）The multi-nucleon transfer reaction is a potential method to reach the “Island of Stability”.
In this term, nuclei toward the deformed shell N=162 will be explored for their fission/mass/structurestudies using 254Es target. New chemistry studies for Md – Lr will be started, taking advantage of
their long half-lives. These programs will be promoted in close collaboration with theory.
Produced by fusion reaction
using stable beam

120

184
120

陽子数
Ｚ
ProtonNumber

118
Og

250Cf

249Bk

248Cm
238U

115
110
105

Deformed shell
108
Sg
Db

Bh

Ds
Mt
Hs

162

Rg

Mc
Fl

Nh
113
Cn

Lv

“ Island of Stability ”

Ts

114

β-stable line
290Ds (T =30 year)
1/2
286Hs(T =10 days)
1/2

100
150

155

160
254Es

165

170

175

180

Neutron
中性子数Number0
α decaySF- 79 -

185

EC/β+ decay
β-decay

JAEA-Evaluation 2018-003

Future plans on the chemical and atomic properties② 原子核構造（理論）The measurement of the first ionization
potential (IP1) in the SHE region
beyond Lr is our next goal. In thisregion, strong relativistic effects onorbital electrons cause loosely-bound
6d2 configuration, strongly-bound 6d10
one, large spin-orbit splitting between
7p1/2 and 7p3/2 orbitals, and looselybound 7p3/2 orbital, which may induce
characteristic chemical properties ofSHE. Our new idea is to generate alow-energy SHE ion beam, which isthen guided to a charge exchange cell,and abundances of positive, negative,
and neutral atomic states aremeasured to determine IP1.

First Ionization Energy (eV)• Development of new techniques to measure “Ionization potential”
and “Adsorption enthalpy” of super-heavy elements
6d10• Development of “Atomic beam” to determine the spin of Lr.
12.0

Cn
(112)

11.0
10.0
9.0
8.0
7.0

Lr

5d
6d

6.0
5.0

68 70 72 74 76 78 80 82 84 86
100 102 104 106 108 110 112 114 116 118

Atomic Number

5f147s2 6d2 or
5f147s2 7p1/26d

Rf (Z=104)

7p1/2

7p3/2

Nh
Mc
(113) (115)

New approach to explore nuclear andchemical properties of SHE
Experiment

FissionRI Material (e.g.254Es)

Tandem Facility

MassFission
Nuclear Structure
Nuclear Mass
New chemistry for SHE

Multi-nucleon Transfer
Reactions

Structure

New development

Theory- 80 -

ChemistryJAEA-Evaluation 2018-003

Research Group for Interfacial Reaction Field Chemistry
1. Members
Leader: Bernd Grambow
Manager:

Naofumi Kozai

Scientific Staff:

Fuminori Sakamoto, Takumi Saito (~Aug. 2015), Kazuya Tanaka (Jul. 2015~),

Hirochika Naganawa (Apr. 2016~), Tetsushi Nagano (Apr. 2016~), Kojiro Shimojo (Apr. 2016~),
Hiroyuki Okamura (Apr. 2016~), Takuya Nankawa (Oct. 2017~), Iwao Shimoyama (Apr. 2018~),
Noboru Aoyagi (Apr. 2018~), Tsuyoshi Sugita (Apr. 2018~), Kohei Tokunaga (Apr. 2018~)
Post-Doctoral Fellow:

Qianqian Yu (~Mar. 2016), Tsuyoshi Sugita (Apr. 2016~Mar. 2018), Yuki

Ueda (Apr. 2017~), Fabiola Guido-Garcia (Apr. 2017~), Kohei Tokunaga (Apr. 2017~Mar. 2018)
Student: [2015] T. Kato (M1), [2016] T. Kato (M2)[2017] A. Eguchi (D1), S. Iinuma (M1), T. Sasanuki (B4)[2018] A. Eguchi (D2), T. Kimura (D1), T. Sasanuki (M1), K. Kikuchi (M1), M. Hirayama(M1), K. Kitazawa (M1), K. Nishiono (M1)
2. Objectives
We explore novel chemical reactions of actinides and fission products (FPs) with various solid
phases, at solid-liquid and at liquid-liquid interfaces to contribute to waste treatment technology,
materials science, environmental and microbiological chemistry, environmental remediation andactinide & FPs chemistry.
In research and development on radioactive waste treatment, we challenge developing novel waste
treatment technologies for difficult-to-treat fission products, iodine and heptavalent technetium, tocontribute to acceleration of the Fukushima Daiichi nuclear power plant (FDNPP) decommissioning
program. Through this challenge, we advance basic research on chemistry of iodine and technetium andmaterial sciences. Although spent sorbents have been generated at the contaminated water treatment
facilities of FDNPP and stored in the FDNPP site, measures for treatment and disposal of spent sorbents
have yet to be studied. Among the FPs, iodine and technetium are the most problematic radionuclides
due to their long half-lives, their chemistry, considering that they are mainly present as monovalentanions with high mobilization potential in most of known solid phases. At the contaminated water
treatment facilities, it is highly possible that iodine and technetium have been captured on organic
sorbents (anion exchange resin and activated carbon) together with common stable anions. Spent organic
sorbents are not suited for being solidified directly in waste form due to gas generation by theirdegradation. Therefore, our challenge is crucial for acceleration of decommissioning. We also aim todevelop novel materials and system for separation of other radionuclides in different waste liquids.
In research on environmental contamination by radionuclides, we aim to elucidate migration
mechanisms of radionuclides in geological environments through laboratory experiments and fieldstudies. We have accesses to two radioactively contaminated sites: the Fukushima forest contaminated- 81 -

JAEA-Evaluation 2018-003

with radioactive cesium (hereafter simply referred to as Cs) and the Ningyo-toge site contaminated withuranium (U) and radium (Ra). At Fukushima forest, we mainly aim to identify and understand themechanism of the biogeochemical cycle of Cs in Fukushima forest. We selected mushrooms as model
microorganisms. It is well known that mushroom play a great role in the Cs cycle in forest soil due tohigh adsorption capacity of Cs in its fruit body, but the mechanisms how mushroom are involved in thisCs cycle are yet to be elucidated. It has never been proven that mushrooms “selectively” draw Cs fromsoil or have specific binding biomolecules for Cs. For this, we investigate i) involvement of metabolites
of mushroom in solubilization of Cs from soil, ii) presence of the selectivity in drawing andbioaccumulation of Cs in mycelia and fruit body, and iii) the biosorption mechanisms for Cs on
biomolecules of mushrooms. Potential remobilization of the accumulated Cs after the death ofmushrooms is studied as well. We also have been working to develop a novel decontamination method
for Fukushima soil and related substances. The Ningyo-toge site of JAEA, consists of former uranium
mines and uranium waste disposal sites. It has never been investigated geochemically. Those mines andsites are planned to be closed in about 15 years and geochemical investigation are required to develop
closure measures. The closure measure may have a risk to release U and Ra by potential drastic changeof chemical environment due to the measure. At the Ningyo-toge site, we aim to characterize thegeochemical behavior of U and Ra from various perspectives including uranium chemistry ingroundwater and mineral-microbe-plant interaction. We develop measures for in-situ containment incollaboration with JAEA Ningyo-toge Environmental Engineering Center and some universities inJapan.
3. Progress and research highlights
3.1. Research progress
3.1.1. R&D on radioactive waste treatment
We are developing a novel treatment method for anionic radionuclides, Tc(VII) and I relating tobasic research. This project aims to develop a number of processes from selective extraction ofradionuclides to solidification as waste form: a method for chemical state adjustment, the developmentof materials for selective extraction and concentration, a method to confine radionuclides in minerals in
inorganic form, and a method to solidify the mineral in waste forms for land fill disposal. For Tc(VII),
we studied the behavior of Re(VII) as a homologous element of Tc(VII), and found that aqueous Re(VII)(ReO4-) was effectively precipitated as Re(III) oxide on the surface of Mn(0) at near neutral pH. We
have been investigating Metal Organic Framework (MOF) materials as ion sorbent. MOFs with selective
ion adsorptivity have not been developed until very recently. We recently found hydrophobic organic
ligands of MOF is important for selective adsorption of Re(VII) by MOF. As for anions of Se(IV),
Se(VI), and I(V), we succeeded in effectively removing them from aqueous solutions and incorporating
those anions in low-solubility mineral barite (BaSO4) by adjusting coprecipitation conditions. The
details of these progresses are described in 3.2 Research highlights. We started a theoretical evaluationon the stability of anions trapped in barite in collaboration with computer modeling research group of- 82 -

JAEA-Evaluation 2018-003

JAEA.
We have been also working on other challenges for mutual separation of lanthanides and platinumgroup metals (PGM). For the latter, there was no known effective method to separate Pd from Pt, but
we succeeded in their separation by developing of task-specific ionic liquids (TSIL) that can befunctionalized by incorporating ligating group (Ueda et al., in preparation) (see 3.2 Research highlights).
We have been proceeding with improvement of our unique highly efficient continuous extraction system,
emulsion flow method. Another challenge is to enhance the mutual separability of rare earth elements
in liquid-liquid systems. We found that selective synergism for heavier lanthanoids for the enhancementof the separability of lanthanoid ions at pH below 5 occurs in an ionic liquid system containing twoorganic sorbents, β-diketones (e.g. 2-thenoyltrifluoroacetone) and trioctylphosphine oxide. We explore
this selective synergism by ionic liquid and organic extractants to develop selective extraction system
for rare earth elements.
Recently, we have developed a solvent-washing-type emulsion flow system, which succeeded incontinuous extraction of uranium extraction from uranium decontamination liquid waste without
lowering extraction efficiency (Nagano et al., 2018).
3.1.2. Research on environmental radionuclide contamination
We have been performing research on the mechanism of the biogeochemical cycle of Cs inFukushima forest using mushroom as model microorganism and on Fukushima river soil particles toassess the mechanism of transport of Cs from forest to ocean.㻌 The research on the impact of mushrooms
concerned the influence of the mineral (or litter) - mushroom metabolite interaction on the dissolutionof Cs㻌 from mineral (or-litter), selective or nonselective drawing Cs from soil, the biosorption on
biomolecules of mushrooms, and behavior of the accumulated Cs after the death of mushrooms. As afirst step, various mushroom species with high and low Cs accumulation were identified and thenorganic acids produced by those mushroom species were investigated to identify the role of themetabolite in Cs drawing and accumulation since organic acids are believed to solubilize Cs fromminerals although no reports have shown any clear evidences. As far as we have investigated, no specificrelationship was observed among mushroom species, type of organic acid, and Cs accumulation. We are
currently investigating mechanisms on dissolution of Cs from minerals by mushroom metabolites
including siderophores (natural chelating agents specifically bind to Fe3+) and accumulation of Cs infruit body and mycelia of mushroom by determining a Cs-K ratio in mushroom. To elucidate
transportation of Cs from Fukushima forest to ocean, particulate substances between Fukushima andChernobyl were compared. Cs is found to be more soluble in a Chernobyl river due to weaker interactionof Cs with clay minerals caused by the inhibition effect of the adsorbed humic substances, whereas
particulate substances in a Fukushima river have high adsorption affinity for Cs with weak inhibition
effect of adsorbed humic substances, suggesting the Cs trapped by the particulate substances in a
Fukushima river is less mobile. This difference is possibly governed by the geology and soil type of
provenances surrounding both catchments (Takahashi et al., 2017). We also have been investigating- 83 -

JAEA-Evaluation 2018-003

characterization of Cs in sewage sludge ash (SSA) to contribute to development of measures for Cscontaminated SSA that have been stored since the FNPP accident at many sewage treatment facilities ineast Japan. It was revealed that more than 80% of Cs is trapped in iron oxide of SSA and 10% is tightly
fixed in amorphous silicon oxides (Kozai et al., 2015). Our recent results show that the main source ofthe silicon of this yet-to-be identified amorphous silicon oxides is paper. A senior staff, who recently
joined us, has been investigating an efficient Cs decontamination method for soil by heating under low
pressure. This method can remove almost 100% of 137Cs from Fukushima soils by heating them with
CaCl2 at 790 oC for 2 h under Ar gas flow. We call this method Cs-free mineralization. Its principle isbased on the idea that clay minerals which fix Cs in soil are converted to different minerals which cannot
include large Cs+ ions in their crystal structures. This conversion is induced by chemical reactions withspecific reactant and facilitates decontamination and volume reduction of contaminated soil. We recently
started investigation on decontamination of SSA by this method. A high removal efficiency of more than
97% was already obtained from a couple of preliminary experiments under the same conditions.
The Ningyo-toge site research started in summer 2017 in collaboration with Tsukuba university,
Kyushu university, University of Tokyo, JAEA Ningyo-toge, and another section of JAEA. Inorganic
mineral weathering, mineral transformation by redox reaction, microbe-mineral interaction including
mineral formation and dissolution, plant-microbe (endophyte)-mineral interaction, groundwaterchemistry, and in-situ element fixation, are the main research subjects to be investigated in terms ofgeochemical behaviors of U and Ra. Field analysis and field sample analysis are evaluated together withlaboratory experimental results. Our group has currently been investigating U chemistry in groundwater.
This site contains various types of U sources. We aim to elucidate mechanisms controlling U chemistryin groundwater. Besides, we have a plan to investigate biogeochemical behavior of U and Ra in soil likeour ongoing research on biogeochemical cycle of Cs in Fukushima forest. Our research work on the
Ningyo-toge site has just started to extend our research on environmental radioactivity beyond
Fukushima in the next 7-year plan also to other environments.
3.2.

Research highlights: Novel methods for recovering anions

3.2.1. Selective removal of Tc(VII)We have been developing novel methods for selective removal of Tc(VII) by two methods using ahomologous element of Tc(VII), Re(VII): reductive removal by Mn(0) and by an anion-selective Metal
Organic Framework (MOF).
Reductive removal of Tc(VII) comprises the reduction of the pertechnetate anion and theprecipitation of Tc at a lower oxidation state as oxide or hydroxide using zerovalent metal as reducing
agent. Although Fe(0) (metal iron) is known as good reducing agent for Tc(VII), Fe(0) is effective atrather low pH (4 or less). We tested some other zerovalent metals and found that Mn(0) effectively
reduces Re(VII) at near neutral pH, which is favorable for treatment of the FDNPP contaminated water.
XANES analysis revealed aqueous Re(VII) (ReO4-) was precipitated as Re(III) and Re(IV) oxide withoxidized Mn. We are planning to do the same experiments at JAEA using a tracer of Tc(VII), which will

- 84 -

JAEA-Evaluation 2018-003

be followed by high concentration Tc(VII) experiments at Helmholtz-Zentrum Dresden-Rossendorf e.V(HZDR), Germany, for analyzing chemical states of Tc precipitated on surface of Mn(0) by reduction.
MOF materials, a new class of porous materials built from various metals and organic linkers, wasoriginally developed as pore-size adjustable molecular sieve for gas molecules due to high porosity,
large surface area, tunable structure, and modifiable functionality. MOFs have also been explored forthe removal of metal ions； however, only a very few experimental studies were conducted. For example,
SeO42-, AsO42- and ReO4- have been removed by MOFs. However, due to the low stability in water andluck of fundamental understanding of ion exchange in MOFs, MOFs cannot be applied for ion separationfrom waste water and other practical use. In our study, selective ReO4- removal by water stable
Zirconium(IV)-based MOFs (i.e. Uio-66 derivatives) have been investigated. By changing thefunctional group of the MOFs, pore sizes and hydrophobicity of the MOFs are controlled to find better
condition for ReO4- removal. We have tested six Uio-66 derivatives and found dimethyl-Uio-66 has thebest property for ReO4- removal (Kd = 2200 mL/g in 0.01N HCl solution and ReO4- adsorbed MOFs
were easily recovered to initial condition in basic solution). We also found hydrophobicity is the mostimportant property for selective ReO4- removal and will explore more hydrophobic MOFs to improve
the selectivity.
3.2.2.

Incorporation of Se(IV), Se(VI), and I(V) in Barite by coprecipitation

Barite, BaSO4, is a mineral with a very low solubility which can easily synthesized by mixing
aqueous solutions of soluble salts such as barium chloride and sodium sulfate. Since barite canincorporate a variety of cations in its structure by coprecipitation, removal of divalent cations from
aqueous solutions by coprecipitation with barite has been applied at industrial scale. On the other hand,
although natural barite is known to contain a very small amount of anions including Se anions in its
structure, number of papers on use of barite for anion removal is few. We succeeded in coprecipitatinglarger amounts of anions of Se(IV), Se(VI), and I(V) with barite by adjusting various parameters ofcoprecipitation (Tokunaga et al., 2017, Tokunaga et al., in preparation). The optimum coprecipitation
conditions for those anions were different from each other but their distribution coefficients reached alevel greater than 3x103 mL/g under the optimum conditions. This is a great achievement since there
was no method to selectively incorporate those anions in inorganic solid with low solubility. We areplanning to immobilize barite coprecipitated with those anions in a solidified body and will investigate
the barrier performance of solidified body.
3.3. Separation of Pt and Pd by novel ionic liquid
Platinum and palladium, which are valuable metals, need to be recycled efficiently. In particular,
palladium is also contained in fission products. However, the mutual separation of platinum andpalladium is one of the most difficult separations of metal separation. The separation of Pt(IV) and Pd(II)by a single extraction system has not been reported so far.
In this research, we focused on the following three points and developed a novel ionic liquid. In- 85 -

JAEA-Evaluation 2018-003

the first point, platinum and palladium exist as anionic species such as PtCl 62− and PdCl42− in aqueous
chloride solution, respectively. PtCl62− stably exists in the solution, while PdCl42− can be relatively easily
ligand exchanged. In the second point, urea group has two functions of forming a coordination bond toa cationic species by a carbonyl oxygen atom and forming a hydrogen bond to an anionic species by NH
moieties. In the third point, ionic liquid extraction system can extract charged species such as cationicand anionic species, which could not extract with conventional organic solvent system. With thosestrategies, we succeeded in their separation by developing of task-specific ionic liquids (TSIL) that canbe functionalized by incorporating ligating group. It was found that the developed ionic liquid system
can selectively extract Pt(IV) in the lower pH region and Pd(II) in the higher pH region, respectively.
Although the mechanism for the selective extraction has not been elucidated yet, spectroscopic analysis
revealed that the extracted Pd(II) species in the organic solvent system and ionic liquid system were
(HL)+2･PdCl42− and LPdCl3−, respectively, where L is extraction agent and HL is protonated extraction
agent. Charged species (LPdCl3−) can be extracted by ionic liquid system, which results in different
extraction behavior from conventional organic solvent system.
4.

New （or updated） strategy, research plans, and goals for next 3.5 years
We have succeeded in developing different research directions compared to the previous five-yearplan period.
As for radioactive waste treatment, our novel findings on radioactive element separation andconfinement as well as our breakthroughs for hard-to-treat elements will need to be strengthened interms of its basic science foundation. We need to strengthen theoretical research to deepen our
understanding of the underlying reaction mechanism. For this we already started collaboration withcomputer modeling group of JAEA but this is insufficient. We aim for hiring researchers on computermodeling. Our scientific staff has a large variety of scientific backgrounds to allow us to do researchfrom various perspective including organic, inorganic, and their hybrid material chemistry, complex
chemistry, catalytic chemistry, separation chemistry and various analytical chemistry. We believe theabove strategies will produce some breakthroughs in chemistry and waste treatment technology for hardto-treat elements including Tc and I.
In our research on environmental contamination, we have shown the importance of theinterinfluence of the mineral-microbe system or the mineral-microbe-plant system on radionuclide
migration. This topic will be our main research subject. For this, we aim to recruit a microbiologist as
permanent employee. With respect to contaminant removal, a JAEA scientist (I. Shimoyama) became
appointed to our service in April 2018. He has previously been investigating Cs removal fromcontaminated soil by heating under reduced pressure. This method, which crystallographically expels
Cs from host minerals by changing the host mineral phase, has recently been found effective also for Cs
removal from contaminated SSA. The decontamination of SSA will be investigated in detail. Another
JAEA scientist (N. Aoyagi) who has been investigating actinides chemistry by time-resolved laser
induced fluorescence spectroscopy became member of our group in April 2018. He will apply this- 86 -

JAEA-Evaluation 2018-003

method for chemical state analysis of uranium in the Ningyo-toge samples.
5. Uniqueness, advantage, and strategy for international COE
We recently started a new approach, chemical state adjustment of element by catalyst to simplify anumber of processes from element extraction to inorganic solidification. In this way, we have been
investigating for hard-to-treat elements with original and unique approaches the overall process startingfrom element extraction to inorganic solidification. Some of the research subjects have been performedin collaboration with domestic universities and oversea research institutes.
Although Cs accumulation by mushroom has been investigating in Japan and overseas, our groupis the only one who aims to holistically elucidate biogeochemical cycle of Cs in forest. Research on
environmental radionuclide migration in Fukushima has been performed in collaboration with the
Fukushima section of JAEA, domestic universities, and oversea research institute (SUBATECH).
Oversea research institutes are ahead of research on abandoned uranium mines; however, the Ningyotoge site has original microbiota and vegetation in the semi natural environment established after
completion of the original waste disposal sites about 20 years ago. Moreover, we have a powerful
analytical method uniquely developed by us for groundwater chemistry. We believe novel findings will
be obtained through investigation on biological influence on long-term behavior of U and Ra,
groundwater chemistry of U and Ra, and else in collaboration with the research groups of JAEA Ningyotoge and domestic universities.
In interaction with SUBATECH/France the group takes the leadership (B. Grambow) of the
proposition of a worldwide “international nuclear legacy initiative” under the auspices of theinternational science council (ISC). Nuclear legacy comprises large volumes of radioactive wastes, disused facilities and sites contaminated by the testing of weapons (Nevada test site, Semipalatinsk site inKasahkhstan, Muruoa and Bikini Atoll) and by accidental radioactivity releases (e.g., at the Hanford sitein Washington, Chernobyl in Ukraine, and Fukushima Daiichi in Japan). A pluridisciplinary steeringcommittee of this initiative has met in June 2018 in Nantes composed of participants from Stanford
University, ICSU (International council of science), Subatech/ASRC, Academy of science, France,
TokyoTec Japan, KIT/HGF, JRC/European commission, president elect from IUPAP, Central South
University, China. The aim of the project is to develop an innovative, operational and independentinternational initiative (like the intergovernmental panel on climate change, IPCC but as an NGO). The
overall anticipated impact of the project is the establishment of a scientific basis, the transdisciplinaryand evidence based understanding with stronger social involvement for the management of a fast andcost effective reduction of the social, economic and health burdens of nuclear legacies for our and for
future generations. Links to the interest of our group are in particular all radiochemical themes related
to the understanding and remediation of the consequences of the accident in Fukushima and as wellthose of ancient uranium mines.

- 87 -

JAEA-Evaluation 2018-003

6.

Impacts to basic science and human society
Based on a strong foundation in basic science and its publication in high impact journals, most of

our research aims to offer breakthroughs in practical science for Fukushima issues, high level radioactive
waste treatment and geological disposal, and development of measures for uranium mine disposal site.
These researches also contribute to a wide range of science such as extraction chemistry, materials
science, coordination chemistry, microbiology, botany, phytoremediation, and geochemistry.
7. Summary
After the start of the current seven-year plan period in 2015, we succeeded in developing totallynew strategies for research on radioactive waste treatment and environmental radionuclide
contamination. We think we can achieve our goals within the current seven-year plan period throughdeveloping current strategies and securing the necessary personnel as follows.
In 2016, the ASRC evaluation committee pointed out two issues, shortage in research staff andneed of theoretical research. With respect to shortage in research staff, we succeeded in greatly
increasing the number of researchers by accepting JAEA employees from other departments. Although
our group has a variety of research staffs on radioactive waste treatment including materials science, ourgroup still has a serious problem, the lack of expertise in environmental microbiology. Hence we needto recruit microbiologists to promote research on environmental contamination. With respect to theintroduction of theoretical research (computer modeling), we already started a collaboration with thecomputer modeling group of JAEA on a couple of research subjects. Besides, one of our members is
preparing to start theoretical research by himself. However, those current efforts are insufficient todeepen our research and its visibility as basic research from theoretical perspective and we aim to recruit
specialists on computer modeling.
8. Publication list
Peer-Reviewed Papers
2015(1) Radioactive Cs in the severely contaminated soils near the Fukushima Daiichi nuclear power plant,
M. Kaneko, T. Iwata, H. Shiotsu, S. Masaki, Y. Kawamoto, S. Yamasaki, Y. Nakamatsu, J. Imoto, G.
Furuki, A. Ochiai, K. Nanba, T. Ohnuki, R. C. Eqing, S. Utsunomiya,
Front. Energy Res. 3, 37 (2015).
(2) Sorption of trivalent cerium by a mixture of microbial cells and manganese oxides: Effect of
microbial cells on the oxidation of trivalent cerium,
T. Ohnuki, M. Jian, F. Sakamoto, N. Kozai, S. Yamasaki, Q. Yu, K. Tanaka, S. Utsunomiya, X. Xia,
K. Yang, J. He,
Geochim. Cosmochim. Acta 163, 1 (2015).
(3) Effects of CeO2 nanoparticles on microbial metabolism,
S. Masaki, H. Shiotsu, T. Ohnuki, F. Sakamoto, S. Utsunomiya,- 88 -

JAEA-Evaluation 2018-003

Chem. Geol. 391, 33 (2015).
(4) Effect of minerals on accumulation of Cs by fungus Saccaromyces cerevisiae,
T. Ohnuki, S. Fuminori, S. Yamasaki, N. Kozai, H. Shiotsu, S. Utsunomiya, N. Watanabe, T. Kozaki,
J. Environ. Radioactivity 144, 127 (2015).
(5) Effects of weak organic acids on the size distribution and size-dependent metal binding of humic
substances as studies by flow field-flow fractionation,
Y. Yamashita, T.Saito,
J. Environ. Chem. Eng. 3, 3024 (2015).
(6) Physicochemical and ion-biding properties of highly aliphatic humic substances extracted from deep
sedimentary groundwater,
T. Saito, M.Terashima, N. Aoyagi, S. Nagao, N. Fujitake, T. Ohnuki,
Environ. Sci. Processes and Impacts 17, 1386 (2015).
(7) Comparative study of granitic and sedimentary groundwater colloids by flow-field flow fractionation
coupled with ICP-MS,
T. Saito, T. Hamamoto, T. Mizuno, T. Iwatsuki, S. Tanaka,
J. Anal. At. Spectrom. 30, 1229 (2015).
(8) Time-resolved laser-induced fluorescence spectroscopy combined with parallel factor analysis: arobust speciation technique for UO22+,
T. Saito, N. Aoyagi, T. Kimura,
J. Radioanal. Nucl. Chem. 303, 1129 (2015).
(9) Radioactive fallout cesium in sewage sludge ash produced after the Fukushima Daiichi nuclear
accident,
N. Kozai, S. Suzuki, N. Aoyagi, F. Sakamoto, T. Ohnuki,
Water Research 68, 616 (2015).
2016(10) Simultaneous recovery and separation of rare earth elements in ferromanganese nodules byusing Shewanella putrefaciens.
J. Fujimoto, K. Tanaka, N.Watanabe, Y. Takahashi,
Hydrometallurgy 166, 80 (2016).
(11) Direct accumulation pathway of radioactive cesium mushroom from contaminated wood logs,
T. Ohnuki, Y. Aiba, F. Sakamoto, N. Kozai, T. Niizato, Y. Sasaki,
Scientific Reports 6, 29866 (2016).
(12) Development of Paper Sludge Ash-Based Geopolymer and Application to Treatment of Hazardous
Water Contaminated with Radioisotopes,
Z. Li, T. Ohnuki, K. Ikeda,
Materials 9, 633 (2016).
(13) Influence of pH, competing ions, and salinity on the sorption of strontium and cobalt onto biogenichydroxyapatite,- 89 -

JAEA-Evaluation 2018-003

S. Handley-Sidhu, T. K. Mullan, Q. Grail, M. Albadarneh, T. Ohnuki, L. E. Macaskie,
Scientific Reports 6, 23361 (2016).
(14) Root endophytic bacteria of a 137Cs and Mn accumulator plant, Eleutherococcus sciadophylloides,
increase 137Cs and Mn desorption in the soil,
K. Yamaji, S. Nagata, T. Haruma, T. Ohnuki, T. Kozaki, N. Watanabe, K. Nanba,
J. Environ. Radioactivity 153, 112 (2016).
(15) Fungus-promoted transformation of lanthanides during the biooxidation of divalent manganese,
Q. Yu, T. Ohnuki, K. Tanaka, N. Kozai, S. Yamasaki, F. Sakamoto, Y. Tani,
Geochim. Cosmochim. Acta 174, 1 (2016).
(16) Sorpion behavior of Np(V) on illite, shale and MX-80 in high ionic strength solutions,S. Nagasaki, J. Riddoch, T. Saito, J. Goguen, A. Walker, T. T. Yang,
J. Radioanal. Nucl. Chem. 303, 143 (2016).
(17) Extraction behavior of rare-earth elements using a mono-alkylated diglycolamic acid extractant,
K. Shimojo, I. Fujiwara, K. Fujisawa, H. Okamura, T. Sugita, T. Oshima, Y. Baba, H. Naganawa,
Solv. Extr. Res. Develop. Jpn. 23, 151 (2016).
(18) Radioactive Cs in the estuary sediments near Fukushima Daiichi Nuclear Power Plant,
S. Yamasaki, J. Imoto, G. Furuki, A. Ochiai, T. Ohnuki, K. Sueki, K. Nanba, R. C. Ewing, S.
Utsunomiya,
Sci. Total Environ. 551, 155 (2016).
2017(19) Sorption behavior of Np(V) on microbe pure culture and consortia,
T. Ohnuki, N. Kozai, F. Sakamoto, S. Utsunomiya, K. Kato,
Chem. Lett. 46, 771 (2017).
(20) Calcium-deficient hydroxyapatite as a potential sorbent for strontium,
Y. Sekine, R. Motokawa, N. Kozai, T. Ohnuki, D. Matsumura, T. Tsuji, R. Kawasaki, K. Akiyoshi,
Scientific Reports 7, 2064 (2017).
(21) Ligand exchange adsorption and coordination structure of Pd on -MnO2 in NaCl solution,
K. Tanaka, M. Tanaka, N. Watanabe, K. Tokunaga, Y. Takahashi,
Chem. Geol. 460, 130 (2017).
(22) Effect of flavin compounds on uranium(VI) reduction-kinetic study using slectrochemical methods
with UV-vis spectrometry,
S. Yamasaki, K. Tanaka, N. Kozai, T. Ohnuki,Appl. Geochem. 78, 279 (2017).
(23) Effective Removal of Selenite and Selenate Ions from Aqueous Solution by Barite,
K. Tokunaga, Y. Takahashi,
Environ. Sci. Technol. 51，9194 (2017).
(24) Quantitative analysis of radiocesium retention onto birnessite and todorokite,
Q. Yu, T. Ohnuki, N. Kozai, F. Sakamoto, K. Tanaka, K. Sasaki,- 90 -

JAEA-Evaluation 2018-003

Chem. Geol. 470, 141 (2017).
(25) Comprehensive Extraction Study Using a Mono-alkylated Diglycolamic Acid Extractant:Comparison Between a Secondary Amide Group and a Tertiary Amide Group,
T. Sugita, I. Fujiwara, Hi. Okamura, T. Ohshima, Y. Baba, H. Naganawa, K. Shimojo,
Solv. Extr. Res. Develop. Jpn. 24, 61 (2017).
(26) Role of Tf2N- anions in the ionic liquid-water distribution of europium(III) chelates,
H. Okamura, N. Aoyagi, K. Shimojo, H. Naganawa, H. Imura,
RSC Advances 7, 7610 (2017).
(27) Removal of soluble strontium via incorporation into biogenic carbonate minerals by halophilic
bacterium Bacillus sp. strain TK2d in a highly saline solution,
T. Horiike, Y. Dotsuta, Y. Nakamura, A. Ochiai, S. Utsunomiya, T. Ohnuki, M. Yamashita,Appl. Environ. Microbiol. 83, e00855 (2017).
(28) Comparison of Solid-Water Partitions of Radiocesium in River Waters in Fukushima and Chernobyl
Areas,Y. Takahashi, Q. Fan, H. Suga, K. Tanaka, A. Sakaguchi, Y. Takeichi, K. Ono, K. Mase, K. Kato, V.
Kanivets,
Scientific Reports 7, 12407 (2017).
2018(29) Complexation of Eu(III), Pb(II), and U(VI) with a Paramecium glycoprotein: microbial
transformation of heavy elements in the aquatic environment,
N. Kozai, F. Sakamoto, K. Tanaka, T. Ohnuki, T. Satoh, T. Kamiya, B. Grambow,
Chemosphere 196, 135 (2018).
(30) Enhanced aqueous adsorption and photodecomposition of anionic organic target by amino groupmodified TiO2 as anionic adsorptive photocatalyst,
T. Sugita, K. Kobayashi, K. Kobayashi, T. Yamazaki, K., Fujii, H. Itabashi, M. Mori,
J. Photochem. Photobiol. A: Chem. 356, 71 (2018).
(31) Mineralogical control of the size distribution of stable Cs and radiocesium in riverbed sediment,
K. Tanaka, N. Watanabe, S. Yamasaki, Ay. Sakaguchi, Q. Fan, Y. Takahashi,
Geochem. J. 52, 173 (2018).
(32) Estimation of desorption ratios of radio/stable cesium from environmental samples (aerosols andsoils) leached with seawater, diluted seawater and ultrapure water,
A. Sakaguchi, H. Chiga, K. Tanaka, H. Tsuruta, Y. Takahashi,
Geochem. J. 52, 187 (2018).㻌(33) Discovery of radiocesium-bearing icroparticles in river water and their influence on the solid-water
distribution coefficient (Kd) of radiocesium in the Kuchibuto river in Fukushima,
H. Miura, Y. Kurihaea, A. Sakaguchi, K. Tanaka, N. Yamaguchi, S. Higaki, Y. Takahashi,
Geochem. J. 52, 145 (2018).
(34) Continuous liquid-liquid extraction of uranium from uranium-containing wastewater using solvent-- 91 -

JAEA-Evaluation 2018-003

washing-type emulsion flow extractor,
N. Tesushi, H. Naganawa, H. Suzuki, M. Toshimitsu, H. Mitamura, N. Yanase, B. Grambow,
Analytical Sciences 34, 1099 (2018).
(35) A fluorometric skin-interfaced microfluidic device and smartphone imaging module for in-situ
quantitative analysis of sweat chemistry,Y. Sekine, S.B. Kim, Y. Zhang, A.J. Bandodkar, S. Xu, J. Choi, M. Irie, T.R. Ray, P. Kohli, N. Kozai,
T. Sugita, Y. Wu, K.H. Lee, K.-T. Lee, R. Ghaffari, J.A. Rogers,
Lab on a chip 15, 2137 (2018).
(36) Adsorption of Cs onto biogenic birnessite: effects of layer structure, ionic strength, and competition
cations,
Q. Yu, T. Ohnuki, N. Kozai, F. Sakamoto, K. Tanaka, Y. Tani,ACS Earth Space Chem. 2, 797 (2018).
(37) Study on coordination structure of Re adsorbed on Mg-Al layered double hydroxide using X-ray
absorption fine structure,
K. Tanaka, N. Kozai, T. Ohnuki, B. Grambow,
J. Porous Mater. DOI: 10.1007/s10934-018-0634-z (2018) (accepted).
(38) A new technique for removing strontium from seawater by coprecipitation with barite,
K. Tokunaga, N. Kozai, Y. Takahashi,
J. Hazardous Mater. 359, 307 (2018).
(39) Discovery of ion-adsorption type deposits of rare earth elements (REE) in Southwest Japan withspeciation of REE by extended X-ray absorption Fine structure spectroscopy,
A. Yamaguchi, T. Honda, M. Tanaka, K. Tanaka, Y. Takahashi,
Geochem. J. 52, 415 (2018).
(40) Synergistic Extraction Equilibrium of Lanthanide(III) Ions with Benzoylacetone and a Neutral
Ligand in an Ionic Liquid,
M. Hatakeyama, Y. Nishiyama, H. Nagatani, H. Okamura, H. Imura,Solv. Extr. Res. Develop. Jpn. 25, 79 (2018).
(41) Extraction Ability of 4-Benzoyl-3-phenyl-5-isoxazolone towards 4f-Ions into Ionic and MolecularMedia,
M. Atanassova, H. Okamura, A. Eguchi, Y. Ueda, T. Sugita, K. Shimojo,
Analytical Sciences 34, 973 (2018).
Invited Talks at International Conferences
2015(1) Micro to macro-scale observation of radiocesium released from the Fukushima Daiichi Nuclear
Power Plant,
K. Tanaka, Q. Fan, A. Sakaguchi. Y. Takahashi,
Pacifichem2015, Honolulu, Hawaii, USA, Dec. 15-20, 2015.

- 92 -

JAEA-Evaluation 2018-003

2016(2) Specific sorption processes of REEs and actinides induced by biomolecules
K. Tanaka, Y. Tani, T. Ohnuki,
Goldschmidt 2016, Yokohama, Japan, Jun. 26-Jul. 1, 2016.
2017(3) Acidic amide-type extractants for metal transfer,
K. Shimojo,
2017 International Symposium on Separation Science and Technology, Kitakyushu, Japan, Nov.
2017.
(4) Urea-substituted ionic liquid for the extraction and separation of Pd(II) and Pt(IV),Y. Ueda,2017 International Symposium on Separation Science and Technology, Kitakyushu, Japan, Nov.
2017.
2018
None
Books and Scientific Articles(1) Geochemistry for the Fukushima Dai-ichi Nuclear Power Plant accident: production, dispersion andmigration of radionuclides,
K. Tanaka，Y. Takahashi, K. Fukushi, S. Utsunomiya,
Chikyukagaku (Geochemistry) 49, 169 (2015) (in Japanese).
(2) Solvent extraction and synergistic effect using an ionic liquid,
H. Okamura，K. Shimojo,
CMC Publishing Co., Ltd., 220 (2016) (in Japanese).
(3) New liquid-liquid extraction method, emulsion flow method,
H. Naganawa,
Bunseki Kagaku 66, 797 (2017) (in Japanese).
(4) Recontamination prevention technologies to prevent radioactive cesium from its runoff from notdecontaminated forests to living areas,
R. Nagasu, D. Tanabe, S. Yokotsuka, N. Kumazawa, T. Ajiki, Y. Aizawa, H. Naganawa, T. Nagano,
N. Yanase, H. Mitamura, T. Tabe,
Kankyojokagijyutu 17, 58 (2018) (in Japanese).
(5) A new technique for solvent extraction: emulsion flow method,
H. Okamura,
Kagaku to Kyoiku (2018) (in Japanese).

- 93 -

JAEA-Evaluation 2018-003

Patents(Domestic application)(1)㻌 テトラアルキルニトリロ酢酸ジアセトアミド化合物の合成方法㻌 (METHOD FOR SYNTHESIZINGTETRAALKYLNITRILOACETIC ACID DIACETAMIDE COMPOUND),
下条晃司郎，長縄弘親㻘㻌 特願 2017-182484㻘㻌 出願日 2017 年 9 月 22 日㻘㻌 単独出願㻚㻌
(2)㻌 土壌固化組成物の製造方法およびそれを用いた土壌固化方法 (Method for manufacturing soil
fixation composition and the method for soil fixation by using the composition),
長縄弘親㻘㻌 永野哲志㻘㻌 柳瀬信之㻘㻌 三田村久吉㻘㻌 宮岡修二㻘㻌 浜井邦彦㻘㻌 森田晃司㻘㻌 千野裕之㻘㻌
町田誠㻘㻌 福井浩㻘㻌 日高康博㻘㻌 特願 2017-182097㻘㻌 出願日 2017 年 9 月 22 日㻘㻌 共願人：株式会
社大林組㻘㻌 日本製紙株式会社㻚㻌
(3)㻌 エマルション流の発生消滅装置及びそれを用いた特定物質の製造方法 (Apparatus to generate
and extinguish emulsion-flow and method for manufacturing specific substances by using theapparatus)，㻌
長縄弘親㻘㻌 柳瀬信之㻘㻌 永野哲志㻘㻌 特開 2018-99691，公開日 2018 年 6 月 28 日㻘㻌 特願 201868878㻘㻌 出願日 2018 年 3 月 30 日㻘㻌 単独出願㻚㻌
(Foreign application)(1) METHOD FOR SYNTHESIZING TETRAALKYLNITRILOACETIC ACID DIACETAMIDECOMPOUND，下条晃司郎，長縄弘親㻘㻌 ベルギー王国㻘㻌 単独出願（手続き中）㻚㻌
(2) METHOD FOR SYNTHESIZING TETRAALKYLNITRILOACETIC ACID DIACETAMIDECOMPOUND，下条晃司郎，長縄弘親㻘㻌 アメリカ合衆国㻘㻌 単独出願（手続き中）㻚㻌
(3) 㻌 METHOD FOR SYNTHESIZING TETRAALKYLNITRILOACETIC ACID DIACETAMIDECOMPOUND，下条晃司郎，長縄弘親㻘㻌 中華人民共和国㻘㻌 単独出願（手続き中）㻚㻌
㻌Awards(1) Most Cited Paper Award of Analytical Sciences 2016 (Analytical Sciences),
K. Shimojo (2016).
(2) Award Paper: Development of Ion Exchange Ligands with High Separation Performance andColorimetric Analysis Using Gold Nanoparticles Decorated with The Functional Ligands (2016),
K. Shimojo (2017).

(3) Poster Award, Analytical chemistry meeting for young scientist (2017): Extraction behavior oftrivalent metal ions into an ionic liquid with 2-mercaptopyridine N-oxide,
A. Eguchi (2017).
(4) Best Poster Award, The 21st International Solvent Extraction Conference (ISEC 2017), Effect ofChelating Agent on Ionic Liquid Chelate Extraction of Trivalent Metals Using Bidentate Ligands,
A. Eguchi (2017).
(5) 特別研究員等審査会専門委員の表彰,
Award for excellent reviewers (Japan Society for the Promotion Science),
H. Naganawa (2018).
Press ReleaseNone- 94 -

JAEA-Evaluation 2018-003

1

!.!-$$%#$(%#$/ ))+%(%5/%+*+"!!%*-%/!
-%/! %.()+./2/!-%*.+(0(!!.%(4,-!,-! '*+2*/++))+ /!1-%+0./%+*
+2!1!-+*(4(%//(!'*+2(! #!+*+))+ /%+*+"*%+*.

!"+0* /$/-%/!*+,-!%,%//!* %*+-,+-/!*%+*.+"!!* 
4 &0./%*#+,-!%,%//%+*,-)!/!-.
!"+-!,-)!/!- &0./)!*/

"+-!!

 

)#

"/!-,-)!/!- &0./)!*/ 
!%*+-,+-/%+*%*-!.! 2%/$-4./((//%!
%./+-/%+*) !4-!,(!)!*/+"  2%/$ !* !%*+-,+-/%+*%*-!.! 2%/$!-!.%*#%*%/%(  +*!*/-/%+*!- "0/0-! ,(*
!(!.! +" ! *  "-+) -%/! * "-+) .%)0(/! 2./! "+-).
+*/%*%*# ! * !-%*# -%/! 2%(( ! !1(0/!   +((+-/%+*
2%/$ +),0/!- )+ !(%*# #-+0, +* /$!+-!/%( !1(0/%+* +* ./%(%/4 +"! *  %* -%/! $. !!* (0*$! )#

3,!-%)!*/.
+*#+%*#

%3/%+*%*-%/!



+(% %"%/%+*%*2./!"+-)"+-(*  %.,+.(%$" % !%!$ *&+$%! $!&()%&&$& &'$($%' $%!'$ '  &% !
"!&!&+%&!$  !$ &$%!$%&(%"$&! %"$&! %+%& $%!$!,&!
%!&!

 %!$$& $&$!'& !!+!$$!&()%&&$& &$!%&&'%& &&!%!&!  )%&!$%&&'%& &" &
!$ 
%!$ &!&!%&$+&+&%&$+*&!   !$ %!%&($!($+!!$ &! %&$+$ %&$+"&$!%!"+

%&#'
!$&%&$+ $!+$!%&$+!!$ &! %&$+!%&$+!&!  )%&!$
!$ %"!% %  &!$&$!'& !!+- 95 -

2

JAEA-Evaluation 2018-003

3

('&"$($%"(%'$-)  .'(('%$$+ '%$#$)"%$)# $) %$.' %$*" 
 %%# "."#$ (#(%( $*!*( #%'()

0%%#%"%'$ (#)%"* )( %%# "."1'* )%.%#*('%%#(%'("%)%(*' $+'.(%')" ) #%,( (&'($)"%" /) %$# ()'.






?

 ((%"*) %$'%#(% "*#*") %$ $'* )%.
"()%(% ")')

%" '$%(#.&'%+(") +(*#*") %$%*'*' $(%')" %'* )%.

 ))'".'



 /%(&' 

'%($( 
        

(""%,(% ",'
# $'"(# '%(#)%" )( $)')

?

?







    
+ %'%()')%#*('%%#

4*)!($&*& '$*')&/+ 0)**)!'&&-")'&%&+$)"'&,$"'&+%"&+"'&"& 0'+'  *"+)*)!
"& 0'+'  *"+    %0 !-  )"*# +')$*    0 ('+&+"$ )*+" !&  '
!%"$ &-")'&%&+ , +' %*,) ')$'*,) + !* &-) & "&-*+" +'!%"$$0

-"& "&"+* +!+  %" )+*"& )',&.+) * (*,''$$'"
$'."& "*+)$$'& ."+! "& 0'+'  *"+ & &" !')"&"&+'+!*"+'$  %"&* ."+! ")&+ *',)*)',&.+)$'."+'  )'' ($* +'"&-*+" + '&+)'$* '  !%"*+)0"&+!*"+"& )',&.+)

!%"*+)0"& )',&.+)'.!& *+!!%"$')% '$'& +!$'.(+!

$'."& ',+  
 
 
  "' '!%"$!-"')'"&& )"!1*$ %2('*"+  
&  '.%"&)$*%")'*($&+*
++! !-"')'  "& 0'+' 

#0%()

!


!

%$  ! "

#'" #

  





#

'++')"()

  













# 


"#"!

- 96 -

  


JAEA-Evaluation 2018-003

%#$#& '#'#)%""#%#' "'%"'#" "
#(" #%", "'%"'#"  ( % * "'')

$" .%!.'(2%&'!'"" "'&" ("31243*!!*"$#) 7" (#(0813%'$7'(#)!) 813,#7)#$'0$'"'%'(#)$80 3 ( 7')$' 5 80 3!+ !('(7 803 (#$ 7 ','0(##)#$!$.()*(8033((7$')$,##+'().0#)'#)$#!!,803#* 03'"$,03'/"*( 7#*!'%.(()803#(7-*)+')$'0 803 )7)#$'0($!(#(80 -# *7#)'!$*)#+'().0#0$")(803'!#7$'"''"#$8')+!/!$#!()#       $#)

(*()#!).$,$'!,#*!'!.7,()(0$#)"#)()(0
$""(($##()(8($#'$"%#*(#((%!#2

















5

#)'#)$-()#!'!.##'#(!#6*%%'$'"(#)$$#$##)'#)$#!%'$'"(7 48')$#$ *)).%'%$')$#)*''#)()*)$#('+)$'."(($#( #(()'"#"#)&*!).)#"#')#$!$(')$'%.#$#)'$!($$#)"##)!*-(7()(0#+'$#"#)0$$#0*"#(8#)'#)$#!((!'('()('#(%'#.0('!#*%#%$#)(!0'*!)$'.0)'#(#)$#!##)'#')$#!(%)(#$!!)+
%'$!"'"#
%).*!#
*#'(#
*!#%'+)%')#'(%(%#%!%'#%+3'"$, 7 58'#!!&&#"#"
#(" # $"/
%"! &"&/ 7 #)!3*#$#$%*'#
%%!%.((8 7 #)!3*#$#$%*'#%%!"()'.8 7 #)!3*#$#$)$-$!$.8
 7 #)!3*#$#$$(.#$%.((84('(%%'  7*'#!)#,!!#8
7#)')'('$#(()''( 8
 5 7,$'!)(.()"(8
7!$!!")$('+)$#
(.()"857!$!$#$('+)$#(.()"8
 7 $#)('#)' $*'$%#$"(($#843.
 6

&2&"1$)0,".2".%(/",2'/1.&738&"12
 /,,"#/1"3*/.
"%*/"$3*5&6"23&31&"3-&.3&,-)/,39!&.314- 1&2%&.
/22&.%/1' &&1-".8&$).&3*4-1&2&"1$)

.5*1/.-&.3",1"%*/.4$,*%&$/.3"-*."3*/.
8.$)1/31/.".",82*2

 1".$&)83/1&-&%*"3*/.
*%&1/0)/1&&70&1*-&.3

01*.(24+4#" .*5



1(".*$"$*%*%&1/0)/1&".",82*2

"5".."*5&1"3*/.",
"#/1"3/18

/1&2318".%/1&231/%4$32
&2&"1$).23

.*5&12*38/'*5&10//,

4+42)*-"  ".",82*2

/%*.&1&2&"1$)
1&2&"1$))&/1&3*$",-/%&,*.(

/+8/.23&$)

*&,%"$3*5*38-42)1//-

.3&1'"$*",&"$3*/.
*&,% )&-*2318

4+42)*-"-*(1"3*/.1&2&"1$)

/%*.&1&2&"1$)842)4 .*5/,,/*%1&2&"1$)/$)* .*5

)/3/$"3",8231&2&"1$).*5/+8/

"'*7"3*/.1&2&"1$) 

"3&1*",2$*&.$&2
&2&"1$) &.3&1 

-",,".(,& 1"8.&431/.
2$"33&1*.(

".",82*2

)&/1&3*$",-/%&,*.(/-043&1-/%&,*.((1/40 /-043&1-/%&,*.((1/404$,&"1$*&.$&".%
.(*.&&1*.( &.3&1 

 



24+4#" .*5
.%/0)83*$'4.(42/1&2318".%/1&231/%4$32
&2&"1$).23
 ".",82*2

*.(8/3/(& 
*&,%"$3*5*38

 2&0"1"3*/.'1/-

*.(8/3/(& -*(1"3*/.1&2&"1$)

731"$3*/.1&2&"1$)- 97 -

JAEA-Evaluation 2018-003

Research Group for Materials Physics for Heavy Element Systems
1. Members
Leader: Shinsaku Kambe
Scientific Staff:

Yoshinori Haga, Yo Tokunaga, Hironori Sakai, Naoyuki Tateiwa, Katsunori Kubo,

Etsuji Yamamoto and Taisuke Hattori (Apr. 2017~)
Post-Doctoral Fellow:

Jiri Pospisil (Apr. 2014~Mar. 2017, got an associate professor position at

Physics Department Charles University Prague), Taisuke Hattori (Apr. 2015~Mar. 2017, shifted topermanent staff of ASRC/JAEA), Nonoka Higa (Apr. 2018~)
Student: [2015] Jun Gouchi (Apr. 2015~Oct. 2015, got an assistant professor position at ISSP
University of Tokyo)
2. Objectives
The main aims of our research are 1) Understanding the exotic electronic properties of strongly
correlated f-electron systems, especially superconductivity and magnetism, 2) Opening new directionsof actinide condensed matter physics such as actinide spintronics and Metal-Insulator (M-I) transitions,and 3) Characterization of debris from the Fukushima nuclear power plant accident using advanced
physical property measurements.
Since 5f-electron systems reside at the boundary between itinerant and localized electronic states,
many exotic properties such as quantum critical phase transitions, unconventional superconductivity andmultipolar ordering come into play. Our group has obtained world-leading achievements in these topics,
e.g. ferromagnetic p-wave superconductors URhGe, UCoGe and UGe2, chiral d-wave superconductivity
and hidden order in URu2Si2. We are continuing to maintain our leadership in these fields.
In addition to the above established research fields, we are developing new research fields for
actinide systems as follows. First, we have initiated actinide spintronics. Because of the large spin-orbit
interaction of the U atom, a large spin-Hall effect is expected for U alloys. However, until recently there
had been no experimental investigation of the spin-Hall effect for U alloys. Using U-diluted/Cu thinfilms, we are seeking to determine basic physical parameters such as spin-Hall and spin-Seebeck effects.
Because of strong electron correlations, there are many Mott insulators in U-based compounds.
However, in contrast to d-electron systems, an M-I transition without structural change using doping
and/or pressure has never been realized clearly in a U compound. Here, the orbital degree of freedom
with strong spin-orbit coupling may play a role for the insulating state. In this project, we are trying torealize a M-I transition in ionic chalcogenide U compounds, in order to understand the Mott insulatingstate in relation to orbital character.
Seven years after the Fukushima nuclear power plant accident, concrete issues are just now
beginning to be recognized. For example, debris may be composed of U, O, Si and Zr elements such as(U, Zr)O2 or (U, Zr)SiO4. It is important to characterize the nature of debris in order to retrieve it.
However, no concrete characterization method has been developed up to now. On collaboration with- 98 -

JAEA-Evaluation 2018-003

CLADS at JAEA and University of Cambridge UK, we are seeking to establish an efficientcharacterization method by means of physical property measurements, especially microscopic NMR andmacroscopic magnetization.
Our research activity is composed of a) New material synthesis with high quality single-crystal
growth and characterization via, e.g., XRD and EPMA (Haga, Tateiwa, Yamamoto, Sakai, Higa); b)
Precise physical property measurements of resistivity, magnetization, heat capacity, dHvA effect, NMR
and SR under multi-extreme conditions, such as low temperature ～30 mK, high magnetic field ~45
T and high pressure ~10 GPa (Kambe, Tokunaga, Haga, Tateiwa, Sakai, Hattori, Higa); and c)
Theoretical modeling of exotic superconductivity and magnetism incorporating many-body effects in felectron systems (Kubo). We are developing new experimental techniques in collaboration with IMR
Tohoku University, Los Alamos National Laboratory US, Universidade de Estadual de Campinas Brazil
and National High Magnetic Field Laboratory US (NMR under high magnetic field); ISSP Universityof Tokyo and CEA-Grenoble (hydrostatic and uniaxial pressure); and Bristol University UK (U/Thbased thin films).
3. Progress and research highlights
Our research progress in the last three years is presented below, item by item. The first three items
are selected highlights that are presented in attached figures.
1)

Unconventional superconductivity and hidden order in URu2Si2
URu2Si2 is an exciting recent target compound in condensed matter physics because of its
ordered state, unidentified for the last 30 years, which is believed to be a new type of electronic order.
This exotic ordering has come to be called “hidden order” (HO), and is one of most challenging
issues in recent condensed matter physics. Furthermore, unconventional superconductivity,
composed of heavy quasi-particles, appears only in the HO state and may be mediated by fluctuationsin the hidden order.
In last few years, our group has made definitive contributions to these issues. At first, the spinsymmetry of Cooper pairs in the superconducting state is determined as singlet state by means of
NMR Knight shift measurements, leading to the suggestion that a chiral d-wave superconducting
state is likely for this compound. In addition, these measurements revealed that the spin susceptibilityof the heavy Fermi liquid is highly anisotropic, a point which cannot be understood in terms ofordinary models (JPSJ Editors’ choice 30, 83).
Using detailed measurements of Ru NQR and the angular dependence of Si NMR spectra, local
4-fold symmetry at the U, Ru and Si sites has been confirmed in the HO state. Based on theseobservations the electronic space group is determined as P4/nnc with the odd-parity rank-5 electric
multipole as the hidden order parameter. Because of the high rank ordering, it is difficult to detect
this order directly, which may be the reason that it took a long time. Next, we are planning a direct
observation of the odd-parity rank-5 electric multipole (PRB Editors’ suggestion 17, 41, 77).

2)

Strong interplay between reentrant superconductivity and ferromagnetic fluctuations in- 99 -

JAEA-Evaluation 2018-003

URhGe and related compounds
Generally speaking, magnetic fields are incompatible with superconductivity. Thus, allsuperconductors possess an upper critical field above which superconductivity is completely
suppressed.

Recently, however, a field-induced reentrant superconductor was discovered understrong magnetic fields in the uranium-based compound URhGe. In this compound, the appliedmagnetic field first suppresses superconductivity at around 2 T, but then a new, reentrant
superconducting phase appears near a field-induced quantum critical point (QCP) at around 12 T.
This unusual phenomenon tells us that magnetic fields are not always incompatible withsuperconductivity but can facilitate its emergence in some cases.
To understand the origin of this exotic phenomenon, we have performed 59Co NMR experiments
on a 10% Co-doped URhGe single crystal. Our experiments revealed a divergence of electronic spin
fluctuations in the vicinity of the QCP. The fluctuations observed are characteristic of a tri-criticalpoint. We have suggested these fluctuations to be the pairing glue responsible for the reentrant
superconductivity (PRL Editors’ suggestion 4, 46).
In 2016, we extended this study to high fields up to 30 T using a 20 MW resistive magnet at the
French National High Magnetic Field Laboratory. A common and characteristic feature of uraniumbased ferromagnetic superconductors is a very large upper critical field (Hc2), by far exceeding theordinary Pauli paramagnetic limit. In particular, for URhGe a very large enhancement of Hc2 was
known to occur only when the field is oriented in a particular crystalline plane (the ab plane) of hardmagnetization. What is revealed by our high-field NMR study is that only field orientation in the abplane preserves the critical fluctuations. This provides a necessary condition for thesuperconductivity to survive up to high fields. This close coincidence between superconductivity andquantum fluctuations provides firm evidence that the pairing mechanism of superconductivity is
mediated by these fluctuations in this system (32, 88).
In the past few years we have also conducted systematic studies of the magnetism in the seriesof UTGe germanites (9, 10, 48, 58, 75, 76, 86). While UCoGe and URhGe are both simple
ferromagnets, the heavier transition elements (T=Ir, Ni, Pd and Pt) introduce rather complex andexotic magnetism. The most peculiar magnetic structure appears in UPtGe. Below TN=50 K, thiscompound exhibits an incommensurate helical (=cycloidal) order. Up to now, UPtGe is the only
actinide system known to exhibit helical structure. To understand the origin of this peculiar magnetic
order, we have performed 195Pt NMR on a single crystal. The experiment clarified the isotropic
character of both the dynamical and static spin susceptibilities in hexagonal-like crystal planes (76).
These results present a clear contrast to the Ising anisotropy of the fluctuations in the ferromagnetic
superconductors UCoGe and URhGe. In UIrGe we have investigated the metamagnetic transition bymagnetization, heat capacity and magnetocaloric-effect measurements and succeeded to construct acomplete temperature-field phase diagram up to 30 T (75).
3)

Unified view of itinerancy of the 5f electrons in actinide ferromagnets
We had previously found unconventional critical scaling of magnetization in the uranium- 100 -

JAEA-Evaluation 2018-003

ferromagnetic superconductors UGe2 and URhGe. There could be important factors in the 5f-electron
ferromagnetism that drive the ferromagnetic superconductivity. In this seven-year plan period, we
try to establish a unified view for the degree of itinerancy of the 5f electrons in actinide compoundswith spin fluctuation theory (N. Tateiwa et al., PRB 2014 Editors’ suggestion). We have carried out
analyses on magnetic data in 68 uranium, 7 neptunium and 4 plutonium ferromagnets with the theory
by Y. Takahashi (Y. Takahashi JPSJ 1986). Itinerant ferromagnets of the 3d transition metals and theirintermetallics follow generalized Rhodes-Wohlfarth relation between peff/ps and TC/T0 viz., peff/ps∝(TC/T0)-3/2. Here, ps, peff, TC and T0 are the spontaneous and effective magnetic moments, the Curie

temperature and the width of spin fluctuation spectrum in energy space, respectively. We have foundthat the same relation is satisfied for TC/T0 < 1.0 in the actinide ferromagnets as shown in the attachedfigure (49). The deviation of several data around TC/T0 ~ 1.0 may be due to other effects not includedin the theory such as crystalline electric field effect on the 5f electrons from surrounding ligand atoms.
This result suggests the itinerant nature of the 5f electrons in most of the actinide ferromagnets. Theenergy scale of magnetic excitations in the actinide systems can be discussed with the theory. Now
we apply the theory to UGe2.
4)

Synthesis of U-diluted Cu thin film and Spin-hall and Spin-Seebeck effects measurements
In collaboration with Bristol University UK, U-diluted Cu thin films are fabricated using themagneto sputtering method of deposition on YIG ferromagnetic substrates, and the spin-Hall andspin-Seebeck effects are estimated using FMR and field-sweep methods, respectively. We have madethin films with several different U concentrations, i.e. 0.6, 1.2 and 2.4% with a typical thickness of~9 nm. We have studied the U-concentration dependence of the spin-Hall effect. However, no spinSeebeck effect was confirmed in the present first trial. It seems likely that spin injection from the
YIG substrate was sensitive to randomness at the interface between the substrate and U/Cu thin films.
In order to improve spin injection, we are now preparing U/Cu and Th/Cu thin films on permalloy
substrates. Previous results are that the spin injection is improved for the Pt/YIG thin film case.
Observation of clear spin-Hall and spin-Seebeck effects is strongly expected in the second try. To
create a theoretical model, we have collaborated with the Research Group for Spin-Energy
Transformation Science at ASRC.

5)Theoretical study on superconductivity and multipole order in Γ3 systems
The Γ3 crystalline electric field (CEF) state has quadrupolar and octupolar degrees of freedom
with no dipolar content. Thus, unconventional superconductivity may occur via a path other than themagnetic dipolar fluctuation mechanism. Indeed, superconductivity has been found in some Pr
compounds with the Γ3 CEF ground state recent years. To elucidate such superconductivity
particularly to Γ3 systems, we first constructed a multiorbital model to describe Γ3 systems, theninvestigated multipolar ordering in such a model (59, 87). In this way we concluded that the natureof multipolar ordering depends on the lattice structure. For example, quadrupolar order is expected
for a simple cubic lattice, but octupolar order is expected for a body centered cubic lattice. Thus, wehave provided a guiding principle for investigating multipolar order in Γ3 systems. In addition, we- 101 -

JAEA-Evaluation 2018-003

have investigated superconductivity of the same model by applying the random phase approximation(78). Thus, we have found that d-wave superconductivity can occur over a wide range of model
parameters. Such anisotropic superconductivity was found to originate from orbital anisotropy inmultiorbital systems. This sort of multiorbital superconductivity was proposed 10 years ago by amember of this research group using a theoretical toy model. Now, it has been shown that suchsuperconductivity actually occurs in a realistic Γ3 model. The d-wave superconductivity found in thistheory should break the cubic symmetry of the system, and inevitably induces quadrupole moments.
Experimentally, in so-called Pr 1-2-20 systems, superconductivity takes place in quadrupolar orderedphases, which is in accord with our theory. Thus, our theory sheds a new light on the relation between
the superconductivity and quadrupolar degrees of freedom.
6)

Discovery of new U-based ferromagnetic compounds
The discovery of new materials has been the strongest driving force behind advances in materialscience. We have found two new uranium intermetallic ferromagnets, URh6Si4 and URh6Ge4. Bothcrystallize in the non-centrosymmetric hexagonal LiPd6P4-type structure. Measurements of physicalproperties revealed ferromagnetic ordering with a uniaxial magnetic anisotropy around 15 K. Unlikewith most uranium intermetallics, the relevant magnetic characteristics can be attributed to localized
f-electron behavior. An isostructural thorium compound ThRh6Ge4 was also successfully generated.
Substitution of Ge by Si, however, led to crystallographic instability. ThRh6Si4 does not exist in thesame structural form, but shows a long-range structural modulation. A new structure type was finallyidentified with the rather complicated formula, Th10Rh51Si33.
The non-centrosymmetric structure might induce unconventional electronic behavior. In fact, arecent theoretical study based on the LiPd6P4-type structure predicts nontrivial degenerate band
structure. It should be noted that f-electrons with strong correlations are still beyond the capabilityof theoretical prediction. An experimental study is underway to investigate novel characteristics inthese compounds.

7)

Search for M-I transition in U chalcogenides
We are seeking to explore new kinds of electronic states in actinide ionic compounds. As
particular candidates, we chose uranium chalcogenides of orthorhombic form UXX’ (X, X’=S, Se,
Te), the transport properties of which range from semimetal to semiconductor (insulator). Of special
interest is β-US2, which exhibits a crossover from semimetallic to semiconducting behavior around
100 K even in the same material, while it is found to be a paramagnet at least down to about 0.5 K.
The negative magnetoresistance for this compound is extremely large (MR= - 99.9% at 7 T) but veryanisotropic. Since ferromagnetism is induced by the relatively low pressure of about 1 GPa, β-US2
is considered to be very close to a ferromagnetic instability. To investigate this intriguing material
for a M-I transition microscopically, we began NMR research on 33S in 2014. The natural abundanceof the NMR isotope 33S is very low, i.e. 0.76%, which makes 33S NMR research in condensed matterphysics very challenging. We have grown crystals of β-US2 enriched to 50% 33S and succeeded inobserving 33S-NMR spectra. In order to measure NMR under very high magnetic field at National- 102 -

JAEA-Evaluation 2018-003

High Magnetic Field Laboratory (NHMFL) US, we have made 33S enriched crystals of β-US2 at Los
Alamos National Laboratory (LANL) US since the U samples cannot be exported from Japan.
Currently, we are conducting parallel NMR investigations of β-US2 at JAEA, NHMFL and LANL.
As another relevant family of compounds, we have also grown single crystals of tetragonal UPX(X=S, Se, Te). We have found that metallicity increases with composition as S→Se→Te, which may
be due to an increase of band-width. We are trying to realize a M-I transition in this series of crystals.
8)

Possible skyrmion phase in EuPtSi
Cubic EuPtSi has a chiral cubic crystal structure similar to that of MnSi, i.e., the local
symmetry .m. of Eu, Pt and Si sites is the same as Mn and Si in MnSi. Furthermore, the corresponding
possibility of a skyrmion phase has arisen recently, since the H-T phase diagram of EtPtSi with TN～
4 K is quite similar to that of MnSi. If this were the case, it would be the first f-electron skyrmion
state and would be unique, since this skyrmion would be composed of Eu ions with large magnetic
moments ～ 7 B. Furthermore, the H-T phase diagram is field-direction dependent, which isdifferent from the MnSi case. In order to identify such a new phase, NMR and SR were measured
on a single crystal of EuPtSi. Strong enhancements of spin-lattice relaxation rate and linewidth areobserved toward TN, indicating the appearance of short range order below 20 K. Currently,
investigations on the ordered state are in progress.

4. New （or updated） strategy, research plans, and goals for next 3.5 years
In the next three and half years, we will continue to work on the subjects described in the narrative
presented above as much as possible. In addition, we will focus on the following new points in particular:
1)

Clarifying the pairing interaction and topological aspects of U-based unconventional
superconductivity
With the symmetry of the superconducting gap currently being determined, the next challenge
is to determine the pairing interaction of unconventional superconducting electrons. We think thatmultipolar fluctuations are a good candidate for the pairing glue in U-based superconductors. In order
to confirm this point, we plan measurements of superconducting properties under uniaxial pressure,since multipolar fluctuations are quite sensitive to uniaxial pressure.
Topological aspects of condensed matter physics were recently renewed and are being
intensively studied. However, clear experimental confirmation up to now is limited. A topologicallyprotected superconducting gap is theoretically proposed for URu2Si2, UPt3 and UCoGe. In order toconfirm the Weyl superconductivity in URu2Si2 and UPt3 and the Z4 topological superconductivity in
UCoGe, transport properties such as the thermal Hall effect will be targeted.

2)

Determination of basic spin-Hall and spin-Seebeck effect parameters in U-diluted systems
As mentioned in Sec. 3, these parameters were not yet determined in the first measurements.
We will determine these parameters in U/Cu systems and compare with Th/Cu systems which haveno f-electrons for a contrast. The strong collaboration on this subject with Bristol university UK will
be continued. We will continue to collaborate with theorists of the Research Group for Spin-Energy- 103 -

JAEA-Evaluation 2018-003

Transformation Science at ASRC.
3)

Establishing a non-contact method for characterizing Fukushima nuclear power plant debris
In a few years, debris will be taken out from the damaged nuclear reactors at the Fukushima
power plant. By that time, we will establish a quick, non-contact characterization method using
microscopic (e.g. NMR) and macroscopic (e.g. magnetization) physical measurements. We willobtain samples of data in systemic reference compounds such as U1-xZrxO2 and U1-xZrxSiO4, to becompared with data on real debris. We will collaborate with the CLADS of JAEA and University ofCambridge UK on this subject.
Our goal in this seven-year project is to give a concrete description of unconventional

superconductivity and multipolar ordering in U compounds, and open new research areas on actinide
compounds.
5. Uniqueness, advantage, and strategy for an international COE
Our research projects, activities and facilities are quite unique in the world. There are only a very
few research groups who can treat the large range of actinides accessible to our group. Our
methodologies are designed for the study of condensed matter physics. At the same time, our grouppossess the advanced skills e.g. sample preparation including high quality single crystal growth ofactinide compounds and precise physical measurements under extreme conditions. Our group is
without doubt a world-class leading group for condensed matter physics of 5f-electron systems. It
should be noted that there are still well organized facilities and human resources for actinide science at
JAEA.
In the next three and half years, we shall apply our knowledge of fundamental actinide physics tospintronics and to the Fukushima decommissioning process in order to make our group an international
COE for comprehensive actinide solid state science.
International collaborations envisioned and under way are as follows: the REIMEI research
project coordinated by R. Springell (Bristol University UK) and S. Kambe (JAEA) was organized from2015 to 2016 for spintronics of U-based thin films. We have the official treaty for research on
uranium/transuranium compounds with CEA-Grenoble France and Institute for Transuranium (ITU)
EU. In addition, we have strong collaborations with University of Michigan US, Charles University
Czech, Universidade de Estadual de Campinas Brazil, Institute Laue-Langevin (ILL), Los Alamos
laboratory (LANL) US, National High Magnetic Field Lab. (NHMFL) US and Laboratoire Nationaldes Champs Magnetiques Intenses (LNCMI) France. The collaborations are quite successful,especially for complementary experiments that are not available at JAEA such as high field and neutron
scatterings (U-compounds are not permitted in MLF of J-PARC).
In next three and half years, we shall reinforce the collaborations noted above. In addition, we aregoing to begin a collaboration with Prof. I. Farnan of the Earth Science Department, University ofCambridge UK on the characterization of debris from the Fukushima power plant. The collaboration- 104 -

JAEA-Evaluation 2018-003

will be in the framework of the Japan-UK collaboration on Fukushima decommissioning, and also will
be extended to REIMEI research. We aim to maintain an international research consortium of actinide
materials science through the collaborations described above.
6.

Impacts on basic science and on human society
Since superconductivity, magnetism and M-I transitions are typical examples of spontaneous

broken symmetry in nature, the basic understanding of these topics in unique 5f-electron systems
contributes broadly and importantly to the progress of condensed matter physics.
Investigation of U-based spintronics provides a foundation for all actinide-based spintronics. This
will be useful for the development of actinide-based spintronics devices, which are expected to beradiation-resistant, and thus useful in nuclear power plant and space technologies.
Understanding of orbital-related M-I transitions may clarify a new type Mott insulator
incorporating 5f electrons. Furthermore, this could provide a basis for developing more stable nuclear
fuels, since metallization improves heat conductivity. This is a critical factor for preventing themeltdown of nuclear fuels.
Establishment of methods for characterization of debris from the Fukushima nuclear power plant
accident is a useful contribution to the decommissioning process. In addition, such methodologies could
be broadly applicable to characterization of nuclear waste in the future.
7. Summary
Our group is a world-class COE for comprehensive actinide materials science, which possesses
unique capabilities and facilities for investigation of actinide materials. To date we have generated many
significant contributions to the condensed matter physics of actinide systems. In the coming years, ourprincipal challenge is to open up new areas in this field, and to apply the knowledge gained to spintronics,
Fukushima decommissioning and nuclear engineering based on our many world-wide collaborations.
Finally, in order to address our goals more efficiently, it may be necessary to expand our
employment of young researchers in the field of new materials synthesis and characterization, sincesearch for new materials and preparation of good quality samples will be rate-determining㻌processes in
the future projects.㻌
8. Publication list
Peer-Reviewed Papers
2015(1) Josephson Effect and Point-Contact Spectroscopy Studies of the Anomaly Observed in the
Superconducting State of the Heavy-Fermion Compound UBe13,
J. Gouchi, A. Sumiyama, A. Yamaguchi, G. Motoyama, Y. Haga, Y. Ōnuki,
J. Phys. Soc. Jpn. 84, 094714 (2015).
(2) Microscopic Investigation of Electronic Inhomogeneity Induced by Substitutions in a Quantum- 105 -

JAEA-Evaluation 2018-003

Critical Metal CeCoIn5,
H. Sakai, F. Ronning, J.-X. Zhu, N. Wakeham, H. Yasuoka, Y. Tokunaga, S. Kambe, E.D. Bauer, J.D.
Thompson,Phys. Rev. B 92, 121105(R) (2015).
(3) Lifshitz Transitions in Magnetic Phases of the Periodic Anderson Model,
Κ. Kubo,J. Phys. Soc. Jpn. 84, 094702 (2015).
(4) Reentrant Superconductivity Driven by Quantum Tricritical Fluctuations in URhGe: Evidence fromCo NMR in URh0.9Co0.1Ge,

59

Y. Tokunaga, D. Aoki, H. Mayaffre, S. Krämer, M.-H. Julien, C. Berthier, M. Horvatić, H. Sakai, S.
Kambe, S. Araki,Phys. Rev. Lett. 114, 216401 (2015). [PRL Editors’ suggestion](5) Anisotropic Energy Scale for Degenerate Fermi and non-Fermi Liquids Near a Quantum Critical
Phase Transition in YbRh2Si2,
S. Kambe, H. Sakai, Y. Tokunaga, G. Lapertot, T. D. Matsuda, G. Knebel, J. Flouquet, R. E. Walstedt,
Phys. Rev. B 91, 161110(R) (2015).
(6) Itinerant-Localized Transitions in Magnetic Phases of the Periodic Anderson Model,
K. Kubo,Physics Procedia 75, 214 (2015).
(7) Transport and Magnetic Properties of EuAl4 and EuGa4,
A. Nakamura, T. Uejo, F. Honda, T. Takeuchi, H. Harima, E. Yamamoto, Y. Haga, K. Matsubayashi,
Y. Uwatoko, M. Hedo, T. Nakama, Y. Ōnuki,
J. Phys. Soc. Jpn. 84, 124711 (2015).
(8) Split Fermi Surface Properties in Ullmannite NiSbS and PdBiSe with the Cubic Chiral Crystal
Structure,
M. Kakihana, A. Teruya, K. Nishimura, A. Nakamura, T. Takeuchi, Y. Haga, H. Harima, M. Hedo,
T. Nakama, Y. Ōnuki,
J. Phys. Soc. Jpn. 84, 094711 (2015).
(9) Evolution of ferromagnetic and non-Fermi-liquid states with doping: The case of Ru-doped UCoGe,
M. Vališka, J. Pospíšil, M. Diviš, J. Prokleška, V. Sechovský, M. M. Abd-Elmeguid,Phys. Rev. B 92, 045114 (2015).
(10) Gradual Localization of 5f States in Orthorhombic UTX Ferromagnets: Polarized Neutron
Diffraction Study of Ru Substituted UCoGe,
M. Vališka, J. Pospíšil, A. Stunault, Y. Takeda, B. Gillon, Y. Haga, K. Prokeš, M. M. Abd-Elmeguid,G. Nénert, T. Okane, H. Yamagami, L. Chapon, A. Gukasov, A. Cousson, E. Yamamoto, V.
Sechovský,J. Phys. Soc. Jpn. 84, 084707 (2015).
(11) Crossover Phase Diagram and Electronic State in the Heavy-Fermion Metamagnets UIr2Zn20 and- 106 -

JAEA-Evaluation 2018-003

UCo2Zn20,
Y. Hirose, T. Takeuchi, F. Honda, S. Yoshiuchi, M. Hagiwara, E. Yamamoto, Y. Haga, R. Settai, Y.
Ōnuki,
J. Phys. Soc. Jpn. 84, 074704 (2015).
(12) Magnetic and Electronic Properties of URu2Si2 Revealed by Comparison with Nonmagnetic
References ThRu2Si2 and LaRu2Si2,
N. Emi, R. Hamabata, D. Nakayama, T. Miki, T. Koyama, K. Ueda, T. Mito, Y. Kohori, Y. Matsumoto,Y. Haga, E. Yamamoto, Z. Fisk, N. Tsujii,
J. Phys. Soc. Jpn. 84, 063702 (2015).
(13) 73Ge-Nuclear Magnetic Resonance/Nuclear Quadrupole Resonance Investigation of Magnetic
Properties of URhGe,
H. Kotegawa, K. Fukumoto, T. Toyama, H. Tou, H. Harima, A. Harada, Y. Kitaoka, Y. Haga, E.
Yamamoto, Y. Ōnuki, K. M. Itoh, E. E. Haller,
J. Phys. Soc. Jpn. 84, 054710 (2015).
(14) Electronic structures of ferromagnetic superconductors UGe2 and UCoGe studied by angle-resolved
photoelectron spectroscopy,
S.-i. Fujimori, T. Ohkochi, I. Kawasaki, A. Yasui, Y. Takeda, T. Okane, Y. Saitoh, A. Fujimori, H.
Yamagami, Y. Haga, E. Yamamoto, Y. Ōnuki,
Phys. Rev. B 91, 174503 (2015).
(15) Field-Orientation Dependence of Low-Energy Quasiparticle Excitations in the Heavy-Electron
Superconductor UBe13,
Y. Shimizu, S. Kittaka, T. Sakakibara, Y. Haga, E. Yamamoto, H. Amitsuka, Y. Tsutsumi, K. Machida,Phys. Rev. Lett. 114, 147002 (2015).
(16) Characteristic Fermi Surface Properties of V2Ga5, CoGa3, TiGa3, ZrGa3, and ZrAl3 with Different
Tetragonal Structures,
A. Teruya, M. Takeda, A. Nakamura, H. Harima, Y. Haga, K. Uchima, M. Hedo, T. Nakama, Y.
Ōnuki,
J. Phys. Soc. Jpn. 84, 054703 (2015). [JPSJ Review Paper](17) Distributed twofold ordering in URu2Si2,
S. Kambe, Y. Tokunaga, H. Sakai, R.E. Walstedt,
Phys. Rev. B 91, 035111 (2015). [PRB Editors’ suggestion](18) Photophysical Property of Catena-Bis (Thiocyanato) Aurate (I) Complexes in Ionic Liquids,
N. Aoyagi, Y. Shinha, A. Ikeda-Ohno, Y. Haga, K. Shimojo, N.R. Brooks, A. Izuoka, H. Naganawa,
T. Kimura, K. Binnemans,
Cryst. Growth Des. 15, 1422 (2015).
(19) Search for Superconducting Energy Gap in UPt3 by Point-Contact Spectroscopy,
J. Gouchi, A. Sumiyama, A. Yamaguchi, G. Motoyama, N. Kimura, E. Yamamoto, Y. Haga, Y. Ōnuki,
J. Phys.: Conf. Ser. 592, 012066 (2015).

- 107 -

JAEA-Evaluation 2018-003(20) Enhancement of the Cyclotron Effective Mass in U0.03Th0.97Ru2Si2,
Y. Haga, Y. Matsumoto, N. Tateiwa, E. Yamamoto, N. Kimura, T. Yamamura, Z. Fisk,
J. Phys.: Conf. Ser. 592, 012036 (2015).
(21) Effect of Pressure on the Electronic State in Eu-Divalent EuTIn4 (T: Ni, Pd, Pt, Au) Compounds,
M. Hedo, Y. Hiranaka, A. Nakamura, K. Tomori, F. Honda, Y. Haga, H. Harima, K. Matsubayashi,
Y. Uwatoko, T. Nakama, Y. Ōnuki,
J. Phys.: Conf. Ser. 592, 012047 (2015).
(22) Split Fermi Surface Properties Based on the Relativistic Effect in Superconductor PdBiSe with the
Cubic Chiral Crystal Structure,
M. Kakihana, A. Nakamura, A. Teruya, H. Harima, Y. Haga, M. Hedo, T. Nakama, Y. Ōnuki,
J. Phys. Soc. Jpn. 84, 033701 (2015).
(23) NMR Study of Black-Phase in SmS,
T. Koyama, H. Yamada, K. Ueda, T. Mito, Y. Haga,
J. Phys.: Conf. Ser. 592, 012027 (2015).
(24) Single Crystal Growth and Physical Properties of YbPd2Si2,
Y. Matsumoto, K. Hanya, Y. Haga, Z. Fisk, S. Ohara,
J. Phys.: Conf. Ser. 592, 012022 (2015).
(25) Anomalous Superconducting Phase Diagram in UBe13,
H. Matsuno, K. Morita, H. Kotegawa, H. Tou, Y. Haga, E. Yamamoto, Y. Onuki,
J. Phys.: Conf. Ser. 592, 012067 (2015).
(26) Mass Enhancement of Nearly Trivalent Compound EuCo2Si2: Studied by the de Haas-van Alphen
Experiments and Energy Band Calculations,Y. Ōnuki, A. Nakamura, D. Aoki, M. Boukahil, Y. Haga, T. Takeuchi, H. Harima, M. Hedo, T.
Nakama,J. Phys.: Conf. Ser. 592, 012049 (2015).
(27) Ultrasonic Investigation of Magnetic Ordering with Higher-Order Interactions in the CageStructured Compound U3Pd20Si6,
T. Yanagisawa, K. Hiura, S. Mombetsu, T. Murazumi, H. Hidaka, H. Amitsuka, N. Tateiwa, Y. Haga,
J. Phys.: Conf. Ser. 592, 012095 (2015).
(28) Anisotropic Magnetic Fluctuations in YbRh2Si2,
S. Kambe, H. Sakai, Y. Tokunaga, G. Lapertot, T. D. Matsuda, G. Knebel, J. Flouquet, R. E. Walstedt,
J. Phys.: Conf. Ser. 592, 012085 (2015).
(29) Variational Monte Carlo study of magnetic states in the periodic Anderson model,
K. Kubo,J. Phys.: Conf. Ser. 592, 012039 (2015).
2016(30) No Detectable Change in In-Plane 29Si Knight Shift in the Superconducting State of URu2Si2,
T. Hattori, H. Sakai, Y. Tokunaga, S. Kambe, T. D. Matsuda, Y. Haga,- 108 -

JAEA-Evaluation 2018-003

J. Phys. Soc. Jpn. 85, 073711 (2016). [JPSJ Editors’ Choice](31) Dynamical Magnetic Susceptibility in Antiferromagnet UPtGa5 Determined by NMR: Comparison
with Isostructural Superconducting CeMIn5 Systems,
S. Kambe, T. Hattori, H. Sakai, Y. Tokunaga, R. E. Walstedt,
Phys. Rev. B 93, 205155 (2016).
(32) Interplay between Quantum Fluctuations and Reentrant Superconductivity with a Highly Enhanced
Upper Critical Field in URhGe,
Y. Tokunaga, D. Aoki, H. Mayaffre, S. Krämer, M.-H. Julien, C. Berthier, M. Horvatić, H. Sakai, T.
Hattori, S. Kambe, S. Araki,Phys. Rev. B 93, 201112(R) (2016).
(33) Unusual pressure evolution of the Meissner and Josephson effects in the heavy-fermion
superconductor UPt3,
J. Gouchi, A. Sumiyama, A. Yamaguchi, G. Motoyama, N. Kimura, E. Yamamoto, Y. Haga, Y. Ōnuki,
Phys. Rev. B 93, 174514 (2016).
(34) Fermi Surface of ThRu2Si2 as a Reference to the Strongly Correlated Isostructural Metals
Investigated by Quantum Oscillations,Y. Matsumoto, Y. Haga, N. Tateiwa, H. Aoki, N. Kimura, T. Yamamura, E. Yamamoto, T. D. Matsuda,
Z. Fisk, H. Yamagami,
J. Phys. Soc. Jpn. 85, 104709 (2016).
(35) New Heavy-Fermion Antiferromagnet UPd2Cd20,
Y. Hirose, H. Doto, F. Honda, D. Li, D. Aoki, Y. Haga, R. Settai,
J. Phys.: Condens. Matter 28, 425601 (2016).
(36) Electronic Structures of Uranium Compounds Studied by Soft X-Ray Photoelectron Spectroscopy,
S.-i. Fujimori, Y. Takeda, T. Okane, Y. Saitoh, A. Fujimori, H. Yamagami, Y. Haga, E. Yamamoto, Y.
Ōnuki,
J. Phys. Soc. Jpn. 85, 062001 (2016). [JPSJ Invited Review Article](37) Recent Progress of Soft X-Ray Photoelectron Spectroscopy Studies of Uranium Compounds,
S.-i. Fujimori, Y. Takeda, T. Okane, Y. Saitoh, A. Fujimori, H. Yamagami, E. Yamamoto, Y. Haga, Y.
Ōnuki,
J. Electron Spectrosc. Relat. Phenom. 208, 105 (2016).
(38) Unusual pressure evolution of the Meissner and Josephson effects in the heavy-fermion
superconductor UPt3,
J. Gouchi, A. Sumiyama, A. Yamaguchi, G. Motoyama, N. Kimura, E. Yamamoto, Y. Haga, Y. Ōnuki,
Phys. Rev. B 93, 174514 (2016).
(39) Properties and Collapse of the Ferromagnetism in UCo1–xRuxAl Studied in Single Crystals,
J. Pospíšil, P. Opletal, M. Vališka, Y. Tokunaga, A. Stunault, Y. Haga, N. Tateiwa, B. Gillon, F. Honda,
T. Yamamura, V. Nižňanský, E. Yamamoto, D. Aoki,
J. Phys. Soc. Jpn. 85, 034710 (2016).

- 109 -

JAEA-Evaluation 2018-003(40) Incommensurate to Commensurate Antiferromagnetism in CeRhAl4Si2: An 27Al NMR Study,
H. Sakai, T. Hattori, Y. Tokunaga, S. Kambe, N. J. Ghimire, F. Ronning, E. D. Bauer, J. D. Thompson,
Phys. Rev. B 93, 014402 (2016).
(41) Dilute RKKY Model for NMR Line Broadening in the Hidden-Order State of URu2Si2,
R.E. Walstedt, S. Kambe, Y. Tokunaga, H. Sakai,Phys. Rev. B 93, 045122 (2016).
(42) Magnetic Anisotropy and Thermodynamic Anomaly in the Superconducting Mixed State of UBe13
Probed by Static Dc Magnetization Measurements,
Y. Shimizu, Y. Haga, T. Yanagisawa, H. Amitsuka,
Phys. Rev. B 93, 024502 (2016).
(43) Evidence for Chiral d-Wave Superconductivity in URu₂Si₂ from the Field-Angle Variation of Its
Specific Heat,
S. Kittaka, Y. Shimizu, T. Sakakibara, Y. Haga, E. Yamamoto, Y. Ōnuki, Y. Tsutsumi, T. Nomoto, H.
Ikeda, K. Machida,
J. Phys. Soc. Jpn. 85, 033704 (2016). [JPSJ Editors’ Choice](44) Superconducting and Fermi Surface Properties of Single Crystal Zr₂Co,
A. Teruya, M. Kakihana, T. Takeuchi, D. Aoki, F. Honda, A. Nakamura, Y. Haga, K. Matsubayashi,
Y. Uwatoko, H. Harima, M. Hedo, T. Nakama, Y. Ōnuki,
J. Phys. Soc. Jpn. 85, 034706 (2016).
(45) 29Si NMR Spin-Echo Decay in YbRh2Si2,
S. Kambe, H. Sakai, Y. Tokunaga, T. Hattori, G. Lapertot, T. D. Matsuda, G. Knebel, J. Flouquet, R.
E. Walstedt,
J. Phys.: Conf. Ser. 683, 012006 (2016).
(46) Quantum Tricritical Fluctuations Driving Mass Enhancement and Reentrant Superconductivity in
URhGe,
Y. Tokunaga, D. Aoki, H. Mayaffre, S. Krämer, M.-H. Julien, C. Berthier, M. Horvatić, H. Sakai, S.
Kambe, T. Hattori, S. Araki,
J. Phys.: Conf. Ser. 683, 012010 (2016).
2017(47) ScPd2Al3 — New Polymorphic Phase in Al-Pd-Sc System,
J. Pospíšil, Y. Haga, K. Nakajima, N. Ishikawa, I. Císařová, N. Tateiwa, E. Yamamoto, T. Yamamura,
Solid State Commun. 268, 12 (2017).
(48) Switching of magnetic ground states across the UIr1-xRhxGe alloy system,
J. Pospíšil, Y. Haga, S. Kambe, Y. Tokunaga. D. Aoki, N. Tateiwa, F. Honda, A. Nakamura, Y.
Homma and E. Yamamoto, T. Yamamura,Phys. Rev. B 95, 155138 (2017).
(49) Itinerant Ferromagnetism in Actinide 5f-Electron Systems: Phenomenological Analysis with Spin
Fluctuation Theory,- 110 -

JAEA-Evaluation 2018-003

N. Tateiwa, J. Pospíšil, Y. Haga, H. Sakai, T. D. Matsuda, E. Yamamoto,Phys. Rev. B 96, 035125 (2017).
(50) T Dependence of Nuclear Spin-Echo Decay at Low Temperatures in YbRh2Si2,
S. Kambe, H. Sakai, Y. Tokunaga, T. Hattori, G. Lapertot, T. D. Matsuda, G. Knebel, J. Flouquet, R.
E. Walstedt,
Phys. Rev. B 95, 195121 (2017).
(51) Pressure studies on the antiferromagnetic Kondo semiconductor Ce(Ru1-xRhx)2Al10 (x=0, 0.1),
H. Tanida, K. Kitagawa, N. Tateiwa, M. Sera, T. Nishioka,
Phys. Rev. B 96, 235131 (2017).
(52) Atomic-scale visualization of surface-assisted orbital order,
H. Kim, Y. Yoshida, C-C. Lee, T-R. Chang, H-T. Jeng, H. Lin, Y. Haga, Z. Fisk, Y. Hasegawa,
Science Advances 3, eaao0362 (2017).
(53) Electronic structure of ThRu2Si2 studied by angle-resolved photoelectron spectroscopy: Elucidating
the contribution of U 5f states in URu2Si2,
S. Fujimori, M. Kobata, Y. Takeda, T. Okane, Y. Saitoh, A. Fujimori, H. Yamagami, Y. Matsumoto,E. Yamamoto, N. Tateiwa, Y. Haga,
Phys. Rev. B 96, 125117 (2017).
(54) Electronic structures of UX3 (X = Al, Ga, and In) studied by photoelectron spectroscopy,
S. Fujimori, M. Kobata, Y. Takeda, T. Okane, Y. Saitoh, A. Fujimori, H. Yamagami, Y. Haga, E.
Yamamoto, Y. Ōnuki,
Phys. Rev. B 96, 115126 (2017).
(55) Wing structure in the phase diagram of the Ising ferromagnet URhGe close to its tricritical point
investigated by angle-resolved magnetization measurements,
S. Nakamura, T. Sakakibara, Y. Shimizu, S. Kittaka, Y. Kono, Y. Haga, J. Pospíšil, E. Yamamoto,Phys. Rev. B 96, 094411 (2017). [PRB Editors’ Suggestion](56) Characteristic Physical Properties of the Non-Kramers Γ3 Ground State in PrPt2Cd20,
Y. Hirose, T. Takeuchi, H. Doto, F. Honda, A. Miyake, M. Tokunaga, D. Yoshizawa, T. Kida, M.
Hagiwara, Y. Haga, R. Settai,
J. Phys. Soc. Jpn. 86, 074711 (2017).
(57) Investigation of the Commensurate Magnetic Structure in the Heavy-Fermion Compound CePt2In7
Using Magnetic Resonant X-Ray Diffraction,
N. Gauthier, D. Wermeille, N. Casati, H. Sakai, R. E. Baumbach, E. D. Bauer, J. S. White,
Phys. Rev. B 96, 064414 (2017).
(58) Effect of Pressure on Magnetism of UIrGe,
J. Pospíšil, J. Gouchi, Y. Haga, F. Honda, Y. Uwatoko, N. Tateiwa, S. Kambe, S. Nagasaki, Y. Homma,
E. Yamamoto,J. Phys. Soc. Jpn. 86, 044709 (2017).
(59) Influence of lattice structure on multipole interactions in Γ3 non-Kramers doublet systems,- 111 -

JAEA-Evaluation 2018-003

K. Kubo, T. Hotta,
Phys. Rev. B 95, 054425 (2017).
(60) Variational Wavefunction for the Periodic Anderson Model with Onsite Correlation Factors,
K. Kubo, H. Onishi,
J. Phys. Soc. Jpn. 86, 013701 (2017).
(61) Unique Pressure versus Temperature Phase Diagram for Antiferromagnets Eu2Ni3Ge5 and EuRhSi3,
M. Nakashima, Y. Amako, K. Matsubayashi, Y. Uwatoko, M. Nada, K. Sugiyama, M. Hagiwara, Y.
Haga, T. Takeuchi, A. Nakamura, H. Akamine, K. Tomori, T. Yara, Y. Ashitomi, M. Hedo, T. Nakama,Y. Ōnuki,
J. Phys. Soc. Jpn. 86, 034708 (2017).
(62) Unique Electronic States in Non-centrosymmetric Cubic Compounds,
M. Kakihana, K. Nishimura, Y. Ashitomi, T. Yara, D. Aoki, A. Nakamura, F. Honda, M. Nakashima,
Y. Amako, Y. Uwatoko, T. Sakakibara, S. Nakamura, T. Takeuchi, Y. Haga, E. Yamamoto, H. Harima,
M. Hedo, T. Nakama, Y. Ōnuki,
J. Electronic Materials 46, 3572 (2017).
(63) Superconducting, Fermi surface, and magnetic properties in SrTGe3 and EuTGe3 (T: transition
metal) with the Rashba-type tetragonal structure,
M. Kakihana, H. Akamine, K. Tomori, K. Nishimura, A. Teruya, A. Nakamura, F. Honda, D. Aoki,
M. Nakashima, Y. Amako, K. Matsubayashi, Y. Uwatoko, T. Takeuchi, T. Kida, M. Hagiwara, Y.
Haga, E. Yamamoto, H. Harima, M. Hedo, T. Nakama, Y. Ōnuki,
J. Alloys Compd. 694, 439 (2017).
(64) Single crystal growth and electronic state of new compounds RPt2Cd20 (R = La-Nd, Sm),
H. Doto, Y. Hirose, F. Honda, T. Takeuchi, Y. Haga, R. Settai,
J. Alloys Compd. 693, 332 (2017).
(65) Nature of Distributed Two-Fold Ordering in URu2Si2,
S. Kambe, Y. Tokunaga, H. Sakai, T. Hattori, R. E. Walstedt,
J. Phys.: Conf. Ser. 868, 012003 (2017).
(66) Anisotropy of Spin Fluctuations in a Tetragonal Heavy Fermion Antiferromagnet CeRhAl4Si2,
H. Sakai, T. Hattori, Y. Tokunaga, S. Kambe, N. J. Ghimire, F. Ronning, E. D. Bauer, J. D. Thompson,
J. Phys.: Conf. Ser. 868, 012012 (2017).
(67) Magnetoresistance and Hall effect of antiferromagnetic uranium compound URhIn5,
Y. Haga, Y. Matsumoto, J. Pospíšil, N. Tateiwa, E. Yamamoto, T. Yamamura, Z. Fisk,
J. Phys.: Conf. Ser. 807, 012015 (2017).
(68) Local Moments in the Heterogeneous Electronic State of Cd-Substituted CeCoIn5: NQR Relaxation
Rates,
H. Sakai, F. Ronning, T. Hattori, Y. Tokunaga, S. Kambe, J.-X. Zhu, N. Wakeham, H. Yasuoka, E. D.
Bauer, J. D. Thompson,
J. Phys.: Conf. Ser. 807, 032001 (2017).

- 112 -

JAEA-Evaluation 2018-003(69) NMR and NQR studies of URu2Si2 and isostructural nonmagnetic references,
N. Emi, R. Hamabata, T. Koyama, K. Ueda, T. Mito, Y. Kohori, Y. Matsumoto, Y. Haga, E.
Yamamoto, Z. Fisk,
J. Phys.: Conf. Ser. 868, 012014 (2017).
(70) Inelastic X-ray scattering of RTAl3 (R= La, Ce, T= Cu, Au),
S. Tsutsui, K. Kaneko, J. Pospíšil, Y. Haga,
Physica B 536, 24 (2017).
(71) Nodal gap structure of the heavy-fermion superconductor URu2Si2 revealed by field-angledependent specific-heat measurements,
S. Kittaka, Y. Shimizu, T. Sakakibara, Y. Haga, E. Yamamoto, Y. Ōnuki, Y. Tsutsumi, T. Nomoto, H.
Ikeda, K. Machida,
J. Phys.: Conf. Ser. 807, 052001 (2017).
(72) Single crystal growth and magnetic properties of pseudo-kagome lattice RRhPb (R= Nd, Sm andGd),
Y. Matsumoto, R. Goto, Y. Haga, Z. Fisk, S. Ohara,
J. Phys.: Conf. Ser. 807, 042006 (2017).
(73) 9Be-NMR studies on anomalous superconducting phase diagram in UBe13,
H. Matsuno, K. Morita, H. Kotegawa, H. Tou, Y. Haga, E. Yamamoto, Y. Ōnuki,
J. Phys.: Conf. Ser. 807, 052015 (2017).
2018(74) Occupation sites and valence states of Co dopants in (La, Co)-codoped M-type Sr ferrite: 57Fe andCo nuclear magnetic resonance studies,59

H. Sakai, T. Hattori, Y. Tokunaga, S. Kambe, H. Ueda, Y. Tanioku, C. Michioka, K. Yoshimura, K.
Takao, A. Shimoda, T. Waki, Y. Tabata, H. Nakamura,Phys. Rev. B 98, 064403 (2018).
(75) Magnetic field induced phenomena in UIrGe in fields applied along the b axis,
J. Pospíšil, Y. Haga, Y. Kohama, A. Miyake, S. Kambe, N. Tateiwa, M. Vališka, P. Proschek, J.
Prokleška, V. Sechovsky, M. Tokunaga, K. Kindo, A. Matsuo, E. Yamamoto,Phys. Rev. B 98, 014430 (2018).
(76) Easy-plane XY spin fluctuations in the cycloidal magnet UPtGe studied via field-orientationdependent 195Pt NMR,
Y. Tokunaga, A. Nakamura, D. Aoki, Y. Shimizu, Y. Homma, F. Honda, H. Sakai, T. Hattori, S.
Kambe,
Phys. Rev. B 98, 014425 (2018).
(77) Odd-parity electronic multipolar ordering in URu2Si2: Conclusions from Si and Ru NMR
measurements,
S. Kambe, Y. Tokunaga, H. Sakai, T. Hattori, N. Higa, T. D. Matsuda, Y. Haga, R. E. Walstedt, H.
Harima,- 113 -

JAEA-Evaluation 2018-003

Phys. Rev. B 97, 235142 (2018).
(78) Anisotropic Superconductivity Emerging from the Orbital Degrees of Freedom in a Γ3 NonKramers Doublet System,
K. Kubo,J. Phys. Soc. Jpn. 87, 073701 (2018).
(79) Anisotropic Magnetic Fluctuations in Ferromagnetic Superconductor UGe 2: 73Ge-NQR Study at
Ambient Pressure,
Y. Noma, H. Kotegawa, T. Kubo, H. Tou, H. Harima, Y. Haga, E. Yamamoto, Y. Ōnuki, K. M. Itoh,E. E. Haller, A. Nakamura, Y. Homma, F. Honda, D. Aoki,
J. Phys. Soc. Jpn. 87, 033704 (2018).
(80) Experimental Determination of the Topological Phase Diagram in Cerium Monopnictides,
K. Kuroda, M. Ochi, H. S. Suzuki, M. Hirayama, M. Nakayama, R. Noguchi, C. Bareille, S. Akebi,
S. Kunisada, T. Muro, M.D. Watson, H. Kitazawa, Y. Haga, T. K. Kim, M. Hoesch, S. Shin, R. Arita,
T. Kondo,
Phys. Rev. Lett. 120, 086402 (2018).
(81) Crystallographic, Magnetic, Thermal, and Electric Transport Properties in UPtIn Single Crystal,Y. Matsumoto, Y. Haga, N. Tateiwa, E. Yamamoto, Z. Fisk,
J. Phys. Soc. Jpn. 87, 024706 (2018).
(82) Critical behavior of magnetization in URhAl: Quasi-two-dimensional Ising system with long-range
interactions,N. Tateiwa, J. Pospíšil, Y. Haga, E. Yamamoto,Phys. Rev. B 98, 064423 (2018).
(83) Evidence for Spin Singlet Pairing with Strong Uniaxial Anisotropy in URu 2Si2 Using Nuclear
Magnetic Resonance,
T. Hattori, H. Sakai, Y. Tokunaga, S. Kambe, T. D. Matsuda, Y. Haga,
Phys. Rev. Lett. 120, 027001 (2018).
(84) Effects of Magnetic Field and Pressure on the Valence-Fluctuating Antiferromagnetic Compound
EuPt2Si2,
T. Takeuchi, T. Yara, Y. Ashitomi, W. Iha, M. Kakihana, M. Nakashima, Y. Amako, F. Honda, Y.
Homma, D. Aoki, Y. Uwatoko, T. Kida, T. Tahara, M. Hagiwara, Y. Haga, M. Hedo, T. Nakama, Y.
Onuki,
J. Phys. Soc. Jpn. 87, 074709 (2018).
(85) Ruderman-Kittel interaction between Si in URu2Si2,
S. Kambe, T. Hattori, Y. Tokunaga, H. Sakai, T. D. Matsuda, Y. Haga, R. E. Walstedt,
J. Phys.: Conf. Ser. 969, 012033 (2018).
(86) Consecutive magnetic phase diagram of UCoGe-URhGe-UIrGe system,
J. Pospíšil, Y. Haga, A. Miyake, S. Kambe, N. Tateiwa, Y. Tokunaga, F. Honda, A. Nakamura, Y.
Homma, M. Tokunaga, D. Aoki, E. Yamamoto,- 114 -

JAEA-Evaluation 2018-003

Physica B 536, 532 (2018).
(87) Multipole interactions of Γ3 non-Kramers doublet systems on cubic lattices,
K. Kubo, T. Hotta,
J. Phys.: Conf. Ser. 969, 012096 (2018).
(88) Field-induced reentrant superconductivity driven by quantum tricritical fluctuations in URhGe,
Y. Tokunaga, D. Aoki, H. Mayaffre, S. Kramer, M.-H. Julien, C. Berthier, M. Horvatic, H. Sakai, T.
Hattori, S. Kambe, S. Araki,
Physica B 536, 122 (2018).
Invited Talks at International Conferences
2015(1) Correlated electronic states in actinide-based intermetallic compounds,
Y. Haga,
Pacifichem 2015, Honolulu, USA, Dec. 15-20, 2015.
(2) NMR study of novel quantum critical behavior in YbRh2Si2,
S. Kambe,
Toyota Riken international workshop 2015, Nagoya, Nov. 17-19, 2015.
(3) Distributed Twofold Ordering in URu2Si2,
S. Kambe,
International Workshop on Itinerant-Electron Magnetism, Kyoto, Japan, Sep. 25-27, 2015.
(4) Mottled electronic state near quantum critical phase transition in YbRh2Si2,
S. Kambe,
TMU International Symposium 2015 "New Quantum Phases Emerging from Novel Crystal
Structure”, Tokyo, Japan, Sep. 24-25, 2015.
(5) Fermi Surfaces of Actinide based Intermetallic Compounds,
Y. Haga,
International Workshop on Heavy Fermions and Quantum Phase Transitions, Hangzhou, China, Apr.
12-17, 2015.
(6) Microscopic Investigation of Electronic Heterogeneity in (Cd, Sn)-doped CeCoIn5,
H. Sakai,International Workshop on Heavy Fermions and Quantum Phase Transitions, Hangzhou, China, Apr.
12-17, 2015.
2016(7) Miniature ceramic anvil cell mCAC for magnetic measurements under high pressure,
N. Tateiwa,
The 17th International Conference on High Pressure in Semiconductor Physics (HPSP-17) &Workshop on High-pressure Study on Superconducting (WHS), Tokyo, Japan, Aug. 7-11, 2016.
(8) The dynamical susceptibility in 115 systems,- 115 -

JAEA-Evaluation 2018-003

S. Kambe,
The Sixth International Workshop on the Dual Nature of ƒ-Electrons (IWDN2016), Idaho Falls, USA,
Jun. 6-10, 2016.
(9) Anisotropic spin fluctuations and locally bound states in strongly correlated f-electron systems nearantiferromagnetic quantum critical point,
H. Sakai,
The Sixth International Workshop on the Dual Nature of ƒ-Electrons (IWDN2016), Idaho Falls, USA,
Jun. 6-10, 2016.
(10) Magnetic and transport characteristics of AnTX5 compounds,
Y. Haga,
The Sixth International Workshop on the Dual Nature of ƒ-Electrons (IWDN2016), Idaho Falls, USA,
Jun. 6-10, 2016.
(11) Microscopic Aspects of Electronic Inhomogeneity and Anisotropic Spin Fluctuations near
Antiferromagnetic Quantum Critical Point,
H. Sakai,
5th International Conference on Superconductivity and Magnetism (ICSM2016), Fethiye, Turkey,
Apr. 24-30, 2016.
2017(12) Magnetic and Transport Characteristics in the Uranium Intermetallic Compounds with the
HoCoGa5-type Structure,
Y. Haga,
American Vacuum Society 64th International Symposium, Tampa, USA, Oct. 29-Nov. 3, 2017.
(13) Spin fluctuations driving superconductivity in uranium-based ferromagnets: Comparison between
URhGe and UCoGe,Y. Tokunaga,
Physics of Uranium based Superconductors, Tokai, Japan, Sep. 29-30, 2017.
(14) Strong Ising anisotropy of URu2Si2 probed by 29Si NMR on superconducting state,
T. Hattori,
Physics of Uranium based Superconductors, Tokai, Japan, Sep. 29-30, 2017.
(15) Reentrant superconductivity induced by quantum tricritical fluctuations in URhGe,
Y. Tokunaga,
J-Physics 2017: International Workshop on Multipole Physics and Related Phenomena, Hachimantai,
Japan, Sep. 24-28, 2017.
(16) NMR study of URu2Si2,
S. Kambe,
J-Physics 2017: International Workshop on Multipole Physics and Related Phenomena, Hachimantai,
Japan, Sep 24-28, 2017.
(17) Application of miniature high pressure cell for magnetic measurements to study on strongly- 116 -

JAEA-Evaluation 2018-003

correlated electron system,
N. Tateiwa,
The 55th European High Pressure Research Group (EHPRG) conference, Poznan Poland, Sep. 3-9,2017.
(18) NMR study of Rotational and superconducting symmetry in URu2Si2,
S. Kambe,
The 28th International Conference on Low Temperature Physics (LT28), Gothenburg, Sweden, Aug.
9-17, 2017.
(19) Electronic Specific Heat of Antifferomagnet URhIn5,
Y. Haga,
72nd The North American Calorimetry Conference (CALCON), Colorado Springs, USA, Jul. 30Aug. 3, 2017.
(20) Local Moments in the Heterogeneous Electronic State of Cd or Zn-Substituted CeCoIn5 — AroundKondo holes —,H. Sakai,
The international Workshop on recent progress in superconductivity (IWRS 2017), Pyeongchang(Yongpyong), South Korea, Jul. 3-5, 2017.
2018(21) Ferromagnetism in intermetallic uranium compounds URh6X4 (X = Si, Ge),
Y. Haga,
The International Workshop on Dual Nature of f-electrons (IWDN 2018), Wrocław, Poland, Jul. 913, 2018.
(22) NMR study of URu2Si2,
S. Kambe,
The International Workshop on Dual Nature of f-electrons (IWDN 2018), Wrocław, Poland, Jul. 913, 2018.
(23) 33S-NMR Study in β-US2,
H. Sakai,The International Workshop on Dual Nature of f-electrons (IWDN 2018), Wrocław, Poland, Jul. 913, 2018.
(24) High field phase diagram of the heavy-fermion metal CeIn3: A pulsed magnetic field NMR study,
Y. Tokunaga,
EMFL User Meeting 2018, Nijmegen Netherlands, Jun. 21, 2018.
(25) NMR study of rotational and superconducting symmetry in URu2Si2,
S. Kambe,
The 6th International Conference on Superconductivity and Magnetism (ICSM 2018), Antalya,
Turkey, Apr. 29-May 4, 2018.

- 117 -

JAEA-Evaluation 2018-003

Books and Scientific Articles(1) 高圧力下磁化測定用セラミックアンビル型圧力セル mCAC,
立岩尚之,
Miniature Ceramic Anvil Cell mCAC for Magnetic Measurements under High Pressure,
N. Tateiwa,
高圧力の科学と技術, The review of high pressure science and technology 25(4), 274 (2015) (inJapanese).
(2) 量子相転移近傍のまだらな電子状態,
神戸振作㻘㻌 酒井宏典㻘㻌 徳永陽㻘㻌 㻌Mottled electronic state near quantum critical phase transition,
S. Kambe, H. Sakai, Y. Tokunaga,
日本物理学会誌,Butsuri, 71, 22 (2016).
(3) アクチノイド化合物の NMR ―二酸化アクチノイドを例として―,
神戸振作,
NMR Study of Actinide Compounds ―Case of Actinide Dioxides―,S. Kambe,
RADIOISOTOPES 67, 1 (2018) (in Japanese).
Patents
None
Awards(1) Outstanding Contribution in Reviewing, Physica B: Physics of Condensed Matter,
H. Sakai (2015).
(2) IOP Publishing Reviewer Awards 2016 (Journal of Physics: Condensed Matter, Outstanding
Reviewers of 2016),
N. Tateiwa (2017).
(3) American Physical Society (APS) journals Outstanding referees, 2018,
N. Tateiwa (2018).

(4) JAEA Director’s award for outstanding research “Mechanism of reentrant superconductivity in highmagnetic field” (2016),
平成 28 年度 研究開発功績賞「強い磁場でよみがえる超伝導のしくみを解明」㻘㻌
Y. Tokunaga (2016).㻌
Press Release(1) 強い磁場でよみがえる超伝導のしくみを解明 —磁場で制御するウラン化合物の新しい機能性の解明と材料開発の推進—,
Mechanism of reentrant superconductivity in high magnetic field,- 118 -

JAEA-Evaluation 2018-003

Y. Tokunaga, D. Aoki, H. Mayaffre, S. Kramer, M.-H. Julien, C. Berthier, M. Horvatic, H. Sakai, S.
Kambe, S. Araki (May 15, 2015).
(2) 走査トンネル顕微鏡による電子軌道秩序の直接観察 —物質表面に現れる新たな秩序の発見—,
Direct observation of orbital ordering in surface by STM,
H. Yoshida, Howon Kim, Y. Haga, Chi-Cheng Lee, Hsin Lin, Zachary Fisk, Y. Hasegwa (Sep. 23,2017).
(3) 磁場に負けない超伝導 —ウラン化合物で現れる、磁場に強い超伝導の仕組みを解明—,
Magnetic field resistant superconductivity in U compound,
T. Hattori, H. Sakai, Y. Tokunaga, S. Kambe, T. D. Matsuda, Y. Haga (Jan. 13, 2018).
(4) 物質の内部に隠れたトポロジーの直接観測に成功 ～「物質のトポロジー」は見かけより中身が大事～,
Direct observation of hidden topology,
K. Kuroda, T. Kondo, R. Arita, M. Ochi, T. Muro, H. Kitazawa, Y. Haga (Feb. 13, 2018).

- 119 -

JAEA-Evaluation 2018-003

Progress 1) Unconventional superconductivity and hidden ordering in URu2Si2
By means of NMR, spin singlet superconducting state with strongly anisotropic spin susceptibility is concluded in
URu2Si2. A chiral d-wave state is likely. In addition, the hidden order parameter is determined as odd parity rank-5
electric multipolar ordering.
Superconductivity
2500

Hidden ordering
T=5K|cos2θ|Linewidth (Hz)

2000
1500
1000

T-dependence of Si NMR Knight shift and spin-lattice relaxation rate

Spin singlet

Chiral d-wave
kz(kx+iky) gap

𝑐𝑐
𝐾𝐾𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠
𝑎𝑎
𝐾𝐾𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠~

𝑐𝑐𝜒𝜒𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠
𝑎𝑎𝜒𝜒𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠

500

> 20

0

Strongly anisotropic
spin susceptibility

inhomogeneouscos4θ

homogeneousD4 state
Electron distribution of odd
parity rank-5 electric
multipolar ordering as thehidden order parameter-15 0 15 30 45 60 75 90105
S. Kambe et al PRL 2013.
θ (degree)

S. Kambe et al PRB 2015
4-fold q-dependence of Si
Editors’ suggestion.
NMR linewidth in the
R.E. Walstedt et al PRB 2016.
hidden ordered state
S. Kambe et al PRB 2018.

T. Hattori et al JPSJ 2016 Editors’ suggestion.
T. Hattori et al PRL 2017.

Progress 2) Strong interplay between reentrant superconductivity andferromagnetic fluctuations in URhGe and related compounds
Around the reentrant superconductivity (SC) in URhGe, field induced Ising type Ferromagnetic (FM) fluctuations is revealed
to be enhanced strongly by NMR measurements. In addition, the theoretically predicted wing structure around the tricritical point has been confirmed. Related UXGe (X:Co, Rh, Ir) have been investigated to clarify the relation between the
Ising FM fluctuations and p-wave superconductivity.
URhGe

Reentrant SC

FM fluctuationsH
bc-plane  easy magnetic plane

Resistivity

ab-plane  hard magnetic plane

Wing structure

Y. Tokunaga et al PRL 2015 Editors’ suggestion.
Y. Tokunaga et al PRB(R) 2016. Y. Tokunaga et al PRB(R) 2018.
J. Pospisil et al PRB 2018.

- 120 -NMR (1/T2)

JAEA-Evaluation 2018-003

Progress 3) Unified view of itinerancy of the 5f electrons in actinide ferromagnets
The itinerant nature of the 5f electrons is suggested for most of the actinide ferromagnets. The general relation
between Curie temperature Tc , energy scale of magnetic fluctuation T0, ordered moment ps and itineracy is found in
the framework of spin-fluctuation theory by Takahashi (Y. Takahashi, JPSJ 1986).

𝒑𝒑eff 𝒑𝒑s ≅ 𝟏𝟏. 𝟒𝟒 𝑻𝑻𝑪𝑪 𝑻𝑻𝟎𝟎 −𝟐𝟐 𝟑𝟑

Consistent with the spinfluctuation theory

Unconventional critical scaling ofmagnetization in UGe2 and URhGe may
characterize the p-wave uranium
ferromagnetic superconductivity

Generalized Rhodes and Wohlfarth relation
N. Tateiwa et al PRB 2014 Editors’ suggestion.

N. Tateiwa et al PRB 2017.

Plan a) Clarifying the pairing interaction and Topological aspects of
U-based unconventional superconductivity
Topological property of superconducting gap in U-based unconventional superconductivity (SC) is predicted recently. Pairing
interaction for that is supposed to be multipolar fluctuations. It is a challenge to innovate experiments for clear
confirmation of these properties.
Fermi liquid

Paring interaction
Temperature (K)Theoretical proposals for Topological SC gap

URu2Si2
Weyl SC

Hiddenorder=
Multipolar
order

AF

SC

UPt3
Weyl SC

Pairing interaction->Multipolar fluctuation?

UCoGe
Z4 topological SC
Certain transportmeasurements may besensitive to the topologicalproperty- 121 -

Pressure (GPa)e.g. SC appear only undermultipolar order in URu2Si2

Multipolar fluctuation is sensitive touniaxial pressure due to lowering oforbital degeneracy

JAEA-Evaluation 2018-003

Plan b) Determination of basic Spin-Hall and Spin-Seebeck effect parametersin U-diluted systems
U-diluted/Cu thinfilms will be deposited on Permalloy substrates using magneto-sputtering method.
Spin-Hall and Spin-Seebeck effects will be measured as function of U concentration. In the second stage, U will be
replaced by Th for a comparison.

U/Th-diluted Cu thinfilms on Permalloy ferromagnet

Spin-orbit coupling strength as functionof atomic number Z

Spin-Seebeck and Spin-Hall effects measurements

Plan c) Establishing a non-contact method for characterizing
Fukushima nuclear power plant debris
From the simulation study, it is now considered that debris is composed of (U,Zr)02 and (U,Zr)Si04 etc. We will
establish quick non-contact characterizing method of debris condition by means of microscopic (e.g. NMR) andmacroscopic (e.g. magnetization) measurements. Chemical composition, its distribution, identification of compounds
will be obtained quickly.
Damaged nuclear reactor of
Fukushima power plant

Debris

NMR spectra e.g. 235U
NMR in UO2=U8 2㻝㻜

8=U 2
6L2

Magnetization in
actinide dioxides
㻿㼡㼟㼏㼑㼜㼠㼕㼎㼕㼘㼕㼠㼥㻌㼤㻌㻝㻜 㻟㻌㻔㼑㼙㼡㻛㼙㼛㼘㻕SEM imagePhysical property
characterizations by noncontact methods

6L)H2

SEM image of simulated debris
in laboratory- 122 -

NpO2

㻤

㻌㻺㼜㻻㻞
㻌㼁㻻㻞
㻌㻼㼡㻻㻞

UO2

㻢

㻠

PuO2

㻞

㻜
㻜

㻡㻜

㻝㻜㻜

㻝㻡㻜

㻞㻜㻜

㼀㼑㼙㼜㼑㼞㼍㼠㼡㼞㼑㻌㻔㻷㻕

㻞㻡㻜

㻟㻜㻜

JAEA-Evaluation 2018-003

Research Group for Spin-Energy Transformation Science
1. Members
Leader: Eiji Saitoh
Manager: Michiyasu Mori
Scientific Staff:

Satoru Okayasu, Masao Ono, Hiroyuki Chudo, Jun’ichi Ieda, Hiroaki Onishi; Bo

Gu (~Mar. 2018), Hiroto Adachi (~Mar. 2016)
Post-Doctoral Fellow:

Kazuya Harii, Masaki Imai, Kouki Nakata, Kei Yamamoto; Mamoru Matsuo(~Mar. 2018), Yuichi Ohnuma (~Mar. 2018), Yudai Ogata (~Oct. 2017), Ryo Takahashi (~Feb. 2017),
Zhuo Xu (~Oct. 2016), Masahiro Sato (~Mar. 2016)
2. Objectives
A spin current is a flow of magnetism. It has been used in a non-volatile magnetic memory andenergy conversion technologies. Those will dramatically reduce energy consumption because of the㻌characteristic property of spin, i.e., its rotational motion is limited in one direction. Hence, we can
expect some interesting functionalities such as rectification of heat flow. Using this advantage of spins,
we are studying new phenomena leading to control of mechanical, electromagnetic, and thermalenergy flows. Furthermore, we are trying to extend the spintronics to involve mechanical motions suchas rotation, vibration, and so on. These studies will establish a new concept on spin transformation, a
new spintronics device with mechanical motion, e.g., spin motor, and new functionality never reachedby the conventional electronics. Our spin-transformation science will lead to a new method ofthermoelectric generation called spin Seebeck effect, and will contribute to the safety of nuclear power
plant, for example, by a maintenance-free thermoelectric device. In addition, those devices based on
the spin materials will be the basis of technology under radiation environments. To accomplish theabove subjects, experimentalist and theorists are closely collaborating. Our important results during
these three years will be reported below.
3. Progress and research highlights
A mechanical rotation is equivalent to a magnetic field in a rotating frame. In fact, a conversion
from a magnetic moment of spin to a macroscopic rotation was experimentally demonstrated in aferromagnet by Einstein and de Haas, and its inverse effect is done by Barnett. In 1915, Barnett foundthat a magnetization is induced in iron by a rotational motion. After this, however, the Barnet effecthas not been observed in a paramagnet because of its small susceptibility, which requires in situ
observation under rapid rotation. We have successfully observed the Barnett effect in paramagnetic
states of gadolinium (Gd) metal with a rotational frequency of up to 1.5 kHz [Ref. (7)]. Figure 1 (a)shows the capsule and the Gd sample used in our experiment, and their schematic figures are shown in
Fig. 1 (b). The magnetic susceptibility of Gd is rather large at a room temperature because the Curie
temperature is just below a room temperature. It allows us to measure small stray fields from the- 123 -

JAEA-Evaluation 2018-003

magnetized Gd sample by the rotation, even in paramagnetic states (See also Fig. 1 (b)). The relation
between the induced magnetization and the frequency of rotation is plotted in Fig. 1 (c). The ratio of
the magnetization and the susceptibility provides an effective magnetic field induced by the rotationand the gyromagnetic ratio of Gd is estimated to be −29±5GHz/T. This method has been extended toother rare earth elements such as Dy and Tb [Ref. (87)]. Furthermore, we have established the new
method to study an angular momentum in a crystal instead of a magnetization. Using this method, we
have successfully observed the ‘angular momentum’ compensation in a ferrimagnet Ho3Fe5O12 [Ref.
(121)]. Note that it is not a ‘magnetization’ compensation known in some ferrimagnets. These
compensations originate from two sublattices with anti-parallel magnetizations in a ferrimagnet. The
magnetization compensation is easily observed by measuring its magnetization. However, the angularmomentum compensation has not been observed so far, since a magnetic field couples to amagnetization instead of an angular momentum. On the other hand, in a rotating frame, its rotationalfrequency couples to an angular momentum and hence the angular momentum compensation can bemeasured by our method. Our method is unique tool to study gyromagnetic properties.

Figure 1. (a) Capsule (left) and Gd sample (right). (b) Schematic illustration of experimental setup.

The positive direction of magnetization, stray field detected by the sensor, and rotation are defined asarrows. (c) Rotational frequency dependence of magnetization observed at 300 ± 0.5 K for Gd
sample (orange solid circles) and blank capsule (black open circle). [Ref. (7)].
The conversion between spin and rotation is also realized in a flow of liquid metal [Ref. (55)]. We
call it spin hydrodynamic (SHD) generation. In this case, a vorticity defined by a rotation of fluid
velocity corresponds to a rotational motion coupled to spins (Fig. 2 (a)). The coupling between avorticity and a spin is similar to the Zeeman coupling. It leads to the fact that the electron spins in aliquid metal can be manipulated by the spin dependent force, which is a spatial gradient of vorticity.
This is the mechanical analogue of the Stern-Gerlach effect. To confirm the spin-current generation,
we used liquid metal flows of Hg and GaInSn in a narrow quartz pipe. Vorticity fields are induced byapplying a pulsed pressure. The spin current is generated along the vorticity gradient, and is converted
into the electric voltage due to the inverse spin Hall effect. The induced voltages are measured by the- 124 -

JAEA-Evaluation 2018-003

Figure 2. (a) Schematic diagram of SHD generation effect. (b) Scaling behavior of the voltage
signals due to spin hydrodynamic generation.
nano-voltmeter attached to the pipe. The scaled signal is proportional to the square of friction velocity
and shows good agreement with the theoretical prediction as shown in Fig. 2 (b). The observed voltage
generation will be used to make an electric generator and a spin generator without using magnets. We
anticipate that observed phenomena will bridge the gap between spintronics and fluid science.
Furthermore, the source of spin current is extended to elasticity of materials. We successfully
generate an alternating spin current using a surface acoustic wave (SAW) in a Cu film via spin-rotation
coupling (SRC) [Ref. (109)]. A SAW generates a gradient of vorticity, i.e., rotational deformation oflattice, in a depth direction. The spin rotation coupling directly converts the vorticity to electron spinin the metallic film. Hence, we can generate a spin current in a nonmagnetic material by the SAW.
Figure 3 (a) shows a basic principle of our experiment to create an alternating spin current generated
by a SAW. When a frequency of SAW matches to that of ferromagnetic resonance (FMR) frequency,
the FMR is excited in a NiFe layer. It is confirmed that the resonance is suppressed by inserting a SiO 2
film at the interface of Cu and NiFe layers. This is the clear evidence that the spin current is injectedby the SAW. The intensity of the resonance depended on the angle between the wave vector of the
SAW and the magnetization of the Ni-Fe film (Fig. 3 (b)). This angular dependence is associated withthe presence of spin transfer torque from a spin current generated via SRC. We further found that theamplitude of spin current increases with the thickness of Cu layer. Our experimental results open
pathways to the generation of alternating spin current in SAW devices without ferromagnet nor large
spin-orbit interaction.
Spin Seebeck effect is thermoelectric generation using a bilayer of metal and magnet. So far
various ferromagnet have been examined for a magnetic layer. Temperature gradient applied in thestacking direction produces magnetically polarized current (spin current) in the ferromagnet. The spincurrent is injected into the metallic layer and is converted into the charge current by the inverse spin
Hall effect. In a usual ferromagnet, the spin current is carried by magnons. On the other hand,
low-dimensional quantum spin systems do not show long-ranged order and their magnetic excitations
are described by spinons, which are topological excitations in the spin liquid state, i.e., disordered state- 125 -

JAEA-Evaluation 2018-003

Figure 3. Schematic illustrations of (a) spin-current (Js) generation via spin-rotation coupling insurface acoustic wave (SAW). (b) Experimental setup for measuring microwave absorption caused by
the ferromagnetic excitation. [Ref. (109)].
of spins. What is difference between magnons and spinons? We successfully observe the spin Seebeck
effect by the spinons using the bilayer of Pt and Sr2CuO3 [Ref. (75)]. Surprising is that the sign ofvoltage is negative and is opposite to the spin Seebeck effect by magnons. The sign difference isattributed to a symmetry of spinon band and a susceptibility of spin liquid state.
The spinon spin Seebeck effect stimulate us to study another quantum magnet such as frustrated
spin systems with competing interactions. In general, the combination of frustration and quantum
ﬂuctuation prevents a magnetic order and then some novel spin states are stabilized such as spin
nematic state. It is a spin analogue of the nematic liquid crystal. However, it is not straightforward toobserve the spin nematic state, since it does not simply couple to a magnetic nor an electric field. Inorder to clarify the properties of the spin nematic state, we studied dynamical spin structure factors ofa frustrated ferromagnetic chain in a magnetic field using dynamical density matrix renormalizationgroup method [Ref. (12)]. It is characteristic that the longitudinal mode is gapless, while the transverse
one has a gap. We found the gapless quadrupole excitations indicating a quasi-long-ranged quadrupole
correlation characteristic to the spin nematic order. We hope that these features will be examined byinelastic neutron scattering experiments in a frustrated magnet such as, LiCuVO4.
4.

New （or updated） strategy, research plans, and goals for next 3.5 years
We will accomplish new connections among spin current, rotational motion, and nuclear spin (SeeFig. 4). Some parts of them have been already realized by us. For example, the spin current
generations by a flow of liquid metal [Ref. (55)] and a surface acoustic wave [Ref. (109)], and thenuclear spin Barnett effect [Ref. (22)] are our original works. However, we have not yet satisfied them,since there exist missing pieces. One is the inverse SHD generation. It is the phenomenon that a liquidflow is generated by injecting a spin current into a metallic liquid. At the same time, another inverse
effect is also expected, i.e., mechanical vibration generated by spin current injection. This is something
like an inverse effect of alternating spin current generation by the SAW and will be measured by using- 126 -

JAEA-Evaluation 2018-003

the micro electro mechanical systems (MEMS). These projects are now on going and such effects will
be observed in the near future. Once we obtained these inverse effects, a new technology such as spin
motor will be in our hands.
Another one is nuclear spin Barnett effect. A mechanical rotation is equivalent to a magnetic field
in a rotating frame, and is observed by nuclear magnetic resonance (NMR) [Ref. (22)]. The magnetic
field in a rotating frame is a kind of inertial force such as Coriolis force and is called Barnett field. We
succeeded for the first time to observe the Barnett field by NMR. It means that the Barnett field ismeasured by nucleus in a material. The inverse effect of this is our next target, i.e., the nuclear spin
Einstein-de-Hass (EdH) effect, and nuclear spin pumping. The Barnett field is proportional to the massof the particle, so that it can be large in nucleus. This is advantage of our method. In addition, the mostinteresting point of nuclear Barnett field is that a coupling constant between the Barnet field andnuclear angular momentum is different from that between electromagnetic field and nuclear
magnetism. Therefore, the magnitude of the Barnett field must depend on nucleus, and it will lead tosurprising prediction that the information of nuclear structure can be obtained by measuring Barnett
field. In particular, the orbital angular momentum of the neutron has no magnetic moment, so it was
impossible to measure by usual methods. However, since it interacts with the Barnett field, it will beclarified by our method. We will establish such a Barnett spectroscopy of nucleus, by which nuclear
spin structure, neutron excess nucleus will be clarified. From the viewpoint of application, it can beused for detection of isotopes and analysis of molecular structures using isotopes. Our nuclear

Figure 4.

Framework of our experimental study.

- 127 -

JAEA-Evaluation 2018-003

spintronics will open pathway to new method, technology, and science.
5. Uniqueness, advantage, and strategy for international COE
We have aimed to unify heat, charge, and mechanical properties in terms of the spin degrees of
freedom by combined experimental and theoretical efforts. We are studying new correlations among
spin current, rotational motion, and nuclear spin. The conversion between mechanical properties andspin current is done by us. This is our original, unique and remarkable result. We are leading the worldof spintronics research by producing the cutting-edge science with future prospects for practicalapplications. To make our results recognized in research community and extend our research network,
we utilize the REIMEI program supported by our research center. So far, every year, we haveorganized international workshops and invited influential researchers not only limited to spintronics
but also neutron sciences and so on. We will continue such activities to explore new directions thatlead research trends in spintronics worldwide.
6.

Impacts to basic science and human society
The new degree of freedom is added to the condensed matter physics by us. It is the mechanicalproperties such as rotation and vibration linked to spin degrees of freedom. Our studies regarding theBarnett effect provide the new and unique tool to study gyromagnetic properties. The spinhydrodynamic generation will be used to make an electric generator and a spin generator without
using magnets. It will bridge between spintronics and fluid science. The generation of alternating spincurrent by SAW will lead to spintronics devices without ferromagnet nor large spin-orbit interaction.
The cross correlation between heat and spin current as spin Seebeck effect is not only the new methodof thermoelectricity but also it is used as a new tool to study magnetism such as spinon and frustrated
quantum spins. Considering these our results, it is reasonable to think that the new pathway ofcondensed matter physics is opened by us. In addition, it is not limited to condensed matter physics,
since we are proposing the new method to study nucleus by the Barnett spectroscopy. By this new
method, nuclear spin structure and neutron excess nucleus will be clarified. From the viewpoint ofapplication, it can be used for detection of isotopes and analysis of molecular structures using isotopes.
It is also noted that the spin hydrodynamic generation and the spin Seebeck effect will be used to
improve safety and safety of nuclear power plant, since both effects have potential leading tomaintenance-free thermoelectric devices.
7. Summary
We have produced many influential results, i.e., Barnett spectroscopies of paramagnet andangular momentum compensation, spin hydrodynamic generation, alternating spin current generation
by surface acoustic wave, spin Seebeck effect as new tool of magnetism. All of our results are new andoriginal. Our group is quite active as stated above. It means that we have much fluidity of humanresources. So far, many members have promoted in another university and research institutes, e.g., H.

- 128 -

JAEA-Evaluation 2018-003

Adachi (Associate Prof., Okayama Univ.), M. Sato (Associate Prof., Ibaraki Univ.), M. Matsuo and Bo
Gu (Associate Prof., Kavli Institute Theoretical Science, Beijing). On the other hand, to acquirenecessary skills for our experiments is absolutely time consuming. Therefore, we need at least two
supplemental members in permanent position to keep and extend activities in case of that someone
will move to another position in future. One position will keep and extend the on-going researchsubjects, and the other one will contribute to nuclear spin and related experiments.
8. Publication list
Peer-Reviewed Papers
2015(1) Quasiparticle-mediated spin Hall effect in a superconductor,
T. Wakamura, H. Akaike, Y. Omori, Y. Niimi, S. Takahashi, A. Fujimaki, S. Maekawa, Y. Otani,
Nature Materials 14, 675 (2015).
(2) Strong Suppression of the Spin Hall Effect in the Spin Glass State,
Y. Niimi, M. Kimata, Y. Omori, B. Gu, T. Ziman, S. Maekawa, A. Fert, Y. Otani,
Phys. Rev. Lett. 115, 196602 (2015).
(3) Charge-to-Spin Conversion and Spin Diffusion in Bi/Ag Bilayers Observed by Spin-Polarized
Positron Beam,
H. J. Zhang, S. Yamamoto, B. Gu, H. Li, M. Maekawa, Y. Fukaya, A. Kawasuso,
Phys. Rev. Lett. 114, 166602 (2015).
(4) Fermi surfaces and p-d hybridization in the diluted magnetic semiconductor Ba1-xKx(Zn1-yMny)2As2
studied by soft x-ray angle-resolved photoemission spectroscopy,
H. Suzuki, G. Q. Zhao, K. Zhao, B. J. Chen, M. Horio, K. Koshiishi, J. Xu, M. Kobayashi, M.
Minohara, E. Sakai, K. Horiba, H. Kumigashira, Bo Gu, S. Maekawa, Y. J. Uemura, C. Q. Jin, A.
Fujimori,
Phys. Rev. B 92, 235120 (2015).
(5) Unconventional scaling and significant enhancement of the spin Seebeck effect in multilayers,
R. Ramos, T. Kikkawa, M. H. Aguirre, I. Lucas, A. Anadon, T. Oyake, K. Uchida, H. Adachi, J.
Shiomi, P. A. Algarabel, L. Morellon, S. Maekawa, E. Saitoh, M. R. Ibarra,
Phys. Rev. B 92, 220407(R) (2015).
(6) Magnon instability driven by heat current in magnetic bilayers,
Y. Ohnuma, H. Adachi, E. Saitoh, S. Maekawa,Phys. Rev. B 92, 224404 (2015).
(7) Barnett effect in paramagnetic states:Revisiting a method for determining gyromagnetic ratio,
M. Ono, H. Chudo, K. Harii, S. Okayasu, M. Matsuo, J. Ieda, R. Takahashi, S. Maekawa, E. Saitoh,Phys. Rev. B 92, 174424 (2015).
(8) Magnetization Plateaux by Reconstructed Quasi-spinons in a Frustrated Two-Leg Spin Ladderunder a Magnetic Field,- 129 -

JAEA-Evaluation 2018-003

T. Sugimoto, M. Mori, T. Tohyama, S. Maekawa,Phys. Rev. B 92, 125114 (2015).
(9) Enhanced Charge Excitations in Electron-Doped Cuprates by Resonant Inelastic X-Ray Scattering,
T. Tohyama, K. Tsutsui, M. Mori, S. Sota, S. Yunoki,Phys. Rev. B 92, 014515 (2015).
(10) Thermal stability of a magnetic domain wall in nanowires,
S. Fukami, J. Ieda, H. Ohno,
Phys. Rev. B 91, 235401 (2015).
(11) Photoemission and x-ray absorption studies of the isostructural to Fe-based superconductors
diluted magnetic semiconductor Ba1-xKx(Zn1-yMny)2As2,
H. Suzuki, K. Zhao, G. Shibata, Y. Takahashi, S. Sakamoto, K. Yoshimatsu, B. J. Chen, H.
Kumigashira, F.-H. Chang, H.-J. Lin, D. J. Huang, C. T. Chen, Bo Gu, S. Maekawa, Y. J. Uemura,
C. Q. Jin, A. Fujimori,Phys. Rev. B 91, 140401(R) (2015). [Editors’ Suggestion](12) Magnetic Excitations of Spin Nematic State in Frustrated Ferromagnetic Chain,
H. Onishi,
J. Phys. Soc. Jpn. 84, 083702 (2015). [Editors’ Choice](13) Spin pumping blocked by single-layer graphene,
S. Haku, T. Tashiro, H. Nakayama, J. Ieda, S. Entani, S. Sakai, K. Ando,Appl. Phys. Exp. 8, 073009 (2015).
(14) Line splitting by mechanical rotation in nuclear magnetic resonance,
K. Harii, H. Chudo, M. Ono, M. Matsuo, J. Ieda, S. Okayasu, S. Maekawa, E. Saitoh,Jpn. J. Appl. Phys. 54, 050302 (2015).
(15) Theory of unidirectional spin heat conveyer,
H. Adachi, S. Maekawa,
J. Appl. Phys. 117, 17C710 (2015).
(16) Mechanical generation of spin current,
M. Matsuo, J. Ieda, S. Maekawa,
Front. Phys. 3, 54 (2015).
(17) Quasi-spin correlations in a frustrated quantum spin ladder,
T. Sugimoto, M. Mori, T. Tohyama, S. Maekawa,Phys. Procedia 75, 861 (2015).
(18) Lifshitz Transition Induced by Magnetic Field for Frustrated Two-Leg Spin-Ladder System,
T. Sugimoto, M. Mori, T. Tohyama, S. Maekawa,
JPS Conf. Proc. 8, 034005 (2015).
(19) Generation of spin currents by surface plasmon resonance,
K. Uchida, H. Adachi, D. Kikuchi, S. Ito, Z. Qiu, S. Maekawa, E. Saitoh,
Nature Commun. 6, 5910 (2015).

- 130 -

JAEA-Evaluation 2018-003(20) Sign change of the spin Hall effect due to electron correlation in non-magnetic CuIr alloys,
Z. Xu, B. Gu, M. Mori, T. Ziman, S. Maekawa,Phys. Rev. Lett. 114, 017202 (2015).
(21) Spin Hall effect by surface roughness,
L. Zhou, V. L. Grigoryan, S. Maekawa, X. Wang, J. Xiao,
Phys. Rev. B 91, 045407 (2015).
(22) Rotational Doppler Effect and Barnett Field in Spinning NMR,
H. Chudo, K. Harii, M. Matsuo, J. Ieda, M. Ono, S. Maekawa, E. Saitoh,
J. Phys. Soc. Jpn. 84, 043601 (2015).
(23) Analysis of the spin Hall effect in CuIr alloys: Combined approach of density functional theory
and Hartree-Fock approximation,
Z. Xu, B. Gu, M. Mori, T. Ziman, S. Maekawa,
J. Appl. Phys. 117, 17D510 (2015).
(24) Enhanced spin Hall effect by electron correlations in CuBi alloys,
B. Gu, Z. Xu, M. Mori, T. Ziman, S. Maekawa,
J. Appl. Phys. 117, 17D503 (2015).
(25) Effects of magnetic anisotropy on spin dynamics of ferromagnetic frustrated chain,
H. Onishi,
J. Phys.: Conf. Ser. 592, 012109 (2015).
(26) First-principles study of electronic and magnetic structures of CoFeB|Ta and CoFe|TaB
heterostructures,
T. Hamada, T. Ohno, S. Maekawa,
Molecular Phys. 113, 314 (2015).
(27) Spin Hall magnetoresistance at high temperatures,
K. Uchida, Z. Qiu, T. Kikkawa, R. Iguchi, E. Saitoh,Appl. Phys. Lett. 106, 052405 (2015).
(28) Sign of inverse spin Hall voltages generated by ferromagnetic resonance and temperature
gradients in yttrium iron garnet platinum bilayers,
M. Schreier, G. E. W. Bauer, V. Vasyuchka, J. Flipse, K. Uchida, J. Lotze, V. Lauer, A. Chumak, A.
Serga, S. Daimon, T. Kikkawa, E. Saitoh, B. J. van Wees, B. Hillebrands, R. Gross, S. T. B.
Goennenwein,
J. Phys. D: Appl. Phys. 48, 025001 (2015).
(29) Enhancement of spin-Seebeck effect by inserting ultra-thin FeCu interlayer,
D. Kikuchi, M. Ishida, K. Uchida, Z. Qiu, T. Murakami, E. Saitoh,Appl. Phys. Lett. 106, 082401 (2015).
(30) Spectral shape deformation in inverse spin Hall voltage in Y3Fe5O12|Pt bilayers at high microwave
power levels,
J. Lustikova, Y. Shiomi, S.M. Haidar, E. Saitoh,- 131 -

JAEA-Evaluation 2018-003

J. Appl. Phys. 117, 073901 (2015).
(31) Generation of spin currents in the skyrmion phase of a helimagnetic insulator Cu2OSeO3,
D. Hirobe, Y. Shiomi, Y. Shimada, J. Ohe, E. Saitoh,
J. Appl. Phys. 117, 053904 (2015).
(32) Observation of longitudinal spin-Seebeck effect in cobalt-ferrite epitaxial thin films,
T. Niizeki, T. Kikkawa, K. Uchida, M. Oka, K. Suzuki, H. Yanagihara, E. Kita, E. Saitoh,
AIP Advances 5, 053603 (2015).
(33) Evaluation of thermal gradients in longitudinal spin Seebeck effect measurements,
A. Sola, M. Kuepferling, V. Basso, M. Pasquale, T. Kikkawa, K. Uchida, E. Saitoh,
J. Appl. Phys. 117, 17C510 (2015).
(34) Laser micro-processing as a tool for constructing insulator-based magnonic crystal,
S. Daimon, R. Iguchi, K. Uchida, E. Saitoh,
J. Phys. D: Appl. Phys. 48, 164014 (2015).
(35) Influence of the interface condition on spin-Seebeck effects,
Z. Qiu, D. Hou, K. Uchida, E. Saitoh,
J. Phys. D: Appl. Phys. 48, 164013 (2015).
(36) Reducing galvanomagnetic effects in spin pumping measurement with Co75Fe25 as a spin injector,
S.M. Haidar, R. Iguchi, A. Yagmur, J. Lustikova, Y. Shiomi, E. Saitoh,
J. Appl. Phys. 117, 183906 (2015).
(37) Spin-current injection and detection in κ-(BEDT-TTF)2Cu[N(CN)2]Br,
Z. Qiu, M. Uruichi, D. Hou, K. Uchida, H. M. Yamamoto, E. Saitoh,
AIP Advances 5, 057167 (2015).
(38) Transverse thermoelectric effect in La0.67Sr0.33O3| SrRuO3 superlattices,
Y. Shiomi, Y. Handa, T. Kikkawa, E. Saitoh,Appl. Phys. Lett. 106, 232403 (2015).
(39) All-oxide spin Seebeck effects,
Z. Qiu, D. Hou, T. Kikkawa, K. Uchida, E. Saitoh,Appl. Phys. Exp. 8, 083001 (2015).
(40) Intrinsic surface magnetic anisotropy in Y3Fe5O12|as the origin of low-magnetic-field behavior of
the spin Seebeck effect,
K. Uchida, J. Ohe, T. Kikkawa, S. Daimon, D. Hou, Z. Qiu, E. Saitoh,Phys. Rev. B 92, 014415 (2015).
(41) Anomalous Hall effect with giant hysteresis loop in La0.67Sr0.33MnO3| SrRuO3 superlattices,
Y. Shiomi, Y. Handa, T. Kikkawa, E. Saitoh,Phys. Rev. B 92, 024418 (2015).
(42) Critical suppression of spin Seebeck effect by magnetic fields,
T. Kikkawa, K. Uchida, S. Daimon, Z. Qiu, Y. Shiomi, E. Saitoh,Phys. Rev. B 92, 064413 (2015).

- 132 -

JAEA-Evaluation 2018-003(43) Observation of inverse spin Hall effect in ferromagnetic FePt alloys using spin Seebeck effect,
T. Seki, K. Uchida, T. Kikkawa, Z. Qiu, E. Saitoh, K. Takanashi,Appl. Phys. Lett. 107, 092401 (2015).
(44) Enhancement of anomalous Nernst effects in metallic multilayers free from proximity-induced
magnetism,
K. Uchida, T. Kikkawa, T. Seki, T. Oyake, J. Shiomi, Z. Qiu, K. Takanashi, E. Saitoh,Phys. Rev. B 92, 094414 (2015).
(45) Enhanced inverse spin Hal contribution at high microwave power levels in La0.67Sr0.33MnO3|
SrRuO3 epitaxial bilayers,
S.M. Haidar, Y. Shiomi, J. Lustikova, E. Saitoh,Appl. Phys. Lett. 107, 152408 (2015).
(46) Anomalous Hall effect driven by dipolar spin waves in uniform ferromagnets,
K. Yamamoto, K. Sato, E. Saitoh, H. Kohno,
Phys. Rev. B 92, 140408 (2015).
(47) Vector spectroscopy for spin pumping,
J. Lustikova, Y. Shiomi, E. Saitoh,Phys. Rev. B 92, 224436 (2015).
2016(48) Vortex shells in mesoscopic triangles of amorphous superconducting thin films,
N. Kokubo, H. Miyahara, S. Okayasu, T. Nojima,
Physica C 530, 42 (2016).
(49) Spin transport in half-metallic ferromagnets,
Y. Ohnuma, M. Matsuo, S. Maekawa,Phys. Rev. B 94, 184405 (2016).
(50) Diluted magnetic semiconductors with narrow band gaps,
B. Gu, S. Maekawa,Phys. Rev. B 94, 155202 (2016).
(51) Optically Transparent Ferromagnetic Nanogranular Films with Tunable Transmittance,
N. Kobayashi, H. Masumoto, S. Takahashi, S. Maekawa,
Scientific Reports 6, 34227 (2016).
(52) Thermoelectric generation based on spin Seebeck effects,
K. Uchida, H. Adachi, T. Kikkawa, A. Kirihara, M. Ishida, S. Yorozu, S. Maekawa, E. Saitoh,Proc. IEEE 104, 1946 (2016).
(53) Spin-transfer torques in antiferromagnetic textures: Efficiency and quantification method,
Y. Yamane, J. Ieda, J. Sinova,
Phys. Rev. B 94, 054409 (2016).
(54) Electric voltage generation by antiferromagnetic dynamics,
Y. Yamane, J. Ieda, J. Sinova,- 133 -

JAEA-Evaluation 2018-003

Phys. Rev. B 93, 180408(R) (2016).
(55) Spin hydrodynamic generation,
R. Takahashi, M. Matsuo, M. Ono, K. Harii, H. Chudo, S. Okayasu, J. Ieda, S. Takahashi, S.
Maekawa, E. Saitoh,
Nature Physics 12, 52 (2016).
(56) Origin of the spin Seebeck effect in compensated ferrimagnets,
S. Geprgs, A. Kehlberger, F. D. Coletta, Z. Qiu, E. J. Guo, T. Schulz, C. Mix, S. Meyer, A. Kamra,
M. Althammer, H. Huebl, G. Jakob, Y. Ohnuma, H. Adachi, J. Barker, S. Maekawa, G. E. W. Bauer,
E. Saitoh, R. Gross, S. T. B. Goennenwein, M. Klui,
Nature Commun. 7, 10452 (2016).
(57) Temperature dependence of enhanced spin relaxation time in metallic nanoparticles: Experimentand theory,
T. Koda, S. Mitani, S. Takahashi, M. Mizuguchi, K. Sato, T. J. Konno, S. Maekawa, K. Takanashi,
Phys. Rev. B 93, 085402 (2016).
(58) What determines the sign of the spin Hall effects in Cu alloys doped with 5d elements?,
Z. Xu, B. Gu, M. Mori, T. Ziman, S. Maekawa,
J. Magn. Magn. Mater. 400, 184 (2016).
(59) Holographic realization of ferromagnets,
N. Yokoi, M. Ishihara, K. Sato, E. Saitoh,Phys. Rev. D 93, 026002 (2016).
(60) Dispersion-type Hall resistance in InSb|Pt hybrid systems,
Y. Shiomi, E. Saitoh,
Scientific Reports 6, 22085 (2016).
(61) Theory of spin Hall magnetoresistance (SMR) and related phenomena,
Y. Chen, S. Takahashi, H. Nakayama, M. Althammer, S. T. B. Goennenwein, E. Saitoh, G. E W
Bauer,
J. Phys.: Condensed Matter 28, 103004 (2016).
(62) Flexible heat-flow sensing sheets based on the longitudinal spin Seebeck effect using
one-dimensional spin-current conducting films,
A. Kirihara, K. Kondo, M. Ishida, K. Ihara, Y. Iwasaki, H. Someya, A. Matsuba, K. Uchida, E.
Saitoh, N. Yamamoto, S. Kohmoto, T. Murakami,
Scientific Reports 6, 23114 (2016).
(63) Complete Suppression of Longitudinal Spin Seebeck Effect by Frozen Magnetization Dynamics
in Y3Fe5O12,
T. Kikkawa, K. Uchida, S. Daimon, E. Saitoh,
J. Phys. Soc. Jpn. 85, 065003 (2016).
(64) Observation of temperature-gradient-induced magnetization,
D. Hou, Z. Qiu, R. Iguchi, K. Sato, E.K. Vehstedt, K. Uchida, G.E.W. Bauer, E. Saitoh,- 134 -

JAEA-Evaluation 2018-003

Nature Commun. 7, 12265 (2016).
(65) Spin-current-driven thermoelectric generation based on interfacial spin-orbit coupling,
A. Yagmur, S. Karube, K. Uchida, K. Kondou, R. Iguchi, T. Kikkawa, Y. Otani, E. Saitoh,Appl. Phys. Lett. 108, (2016).
(66) Universal scaling for the spin-electricity conversion on surface states of topological insulators,
K. Yamamoto, Y. Shiomi, K. Segawa, Y. Ando, E. Saitoh,Phys. Rev. B 94, 24404 (2016).
(67) Spin-current probe for phase transition in an insulator,
Qiu, J. Li, D. Hou, E. Arenholz, A. T. N’Diaye, A. Tan, K. Uchida, K. Sato, S. Okamoto, Y.
Tserkovnyak, E. Saitoh,
Nature Commun. 7, 12670 (2016).
(68) Magnon Polarons in the Spin Seebeck effect,
T. Kikkawa, K. Shen, B. Flebus, R. A. Duine, K. Uchida, Z. Qiu, G. E. W. Bauer, E. Saitoh,Phys. Rev. Lett. 117, 207203 (2016).
(69) Spin Current Physics and applications,E. Saitoh,IEEE Trans. Mag. 52 (2016).
(70) Thermal imaging of spin Peltier effect,
S. Daimon, R. Iguchi, T. Hioki, E. Saitoh, K. Uchida,
Nature Commun. 7, 13754 (2016).
(71) Thermoelectric performance of spin Seebeck effect in Fe3O4/Pt-based thin film heterostructures,
R. Ramos, A. Anadón, I. Lucas, K. Uchida, P. A. Algarabel, L. Morellón, M. H. Aguirre, E. Saitoh,
M. R. Ibarra,
APL Materials 4, 104802 (2016).
(72) Gamma radiation resistance of spin Seebeck devices,
Yagmur, K. Uchida, K. Ihara, I. Ioka, T. Kikkawa, M. Ono, J. Endo, K. Kashiwagi, T. Nakashima,
A. Kirihara, M. Ishida, E. Saitoh,Appl. Phys. Lett. 109, 243902 (2016).
(73) Effect of strong gravitational field on oriented crystalline perovskite-type manganese oxide
La1−xSrxMnO3,
M. Tokuda, T. Mashimo, J. Khandaker, Y. Ogata, Y. Mine, S. Hayami, A. Yoshiasa,
J. Mater. Sci. 51, 7899 (2016).
(74) Influence of sedimentation of atoms on structural and thermoelectric properties of Bi-Sb alloys,
K. Januszko, A. Stabrawa, Y. Ogata, M. Tokuda, J. Khandaker, K. Wojciechowski, T. Mashita,
J. Electronic Materials 45, 1947 (2016).
2017(75) One-dimensional spinon spin currents,
D. Hirobe, M. Sato, T. Kawamata, Y. Shiomi, K. Uchida, R. Iguchi, Y. Koike, S. Maekawa, E.

- 135 -

JAEA-Evaluation 2018-003

Saitoh,Nature Physics 13, 30 (2017).
(76) Enhanced magneto-optical Kerr effect at Fe/insulator interfaces,
B. Gu, S. Takahashi, S. Maekawa,Phys. Rev. B 96, 214423 (2017).
(77) Theory of the spin Peltier effect,
Y. Ohnuma, M. Matsuo, S. Maekawa,Phys. Rev. B 96, 134412 (2017).
(78) Broad line-width of antiferromagnetic spinwave due to electrons correlation,
M. Mori,
J. Phys. Soc. Jpn. 86, 124705 (2017).
(79) NMR investigation of spin fluctuations in the itinerant-electron magnetic compoundSr1-xCaxCo2P2,
M. Imai, C. Michioka, H. Ueda, K. Yoshimura,Phys. Rev. B 95, 054417 (2017).
(80) Spin Current Generation Using a Surface Acoustic Wave Generated via Spin-Rotation Coupling,
D. Kobayashi, T. Yoshikawa, M. Matsuo, R. Iguchi, S. Maekawa, E. Saitoh, Y. Nozaki,
Phys. Rev. Lett. 119, 077202 (2017). [Editors’ Suggestion](81) Quantum phase transitions driven by rhombic-type single-ion anisotropy in the S=1 Haldane
chain,
Y. Tzeng, H. Onishi, T. Okubo, Y. Kao,Phys. Rev. B 96, 060404(R) (2017).
(82) Enhanced orbital magnetic moment in FeCo nanogranules observed by Barnett effect,
Y. Ogata, H. Chudo, B. Gu, N. Kobayashi, M. Ono, K. Harii, M. Matsuo, E. Saitoh, S. Maekawa,
J. Magn. Magn. Mater. 442, 329 (2017).
(83) Magnetic structure and dispersion relation of the S=1/2 quasi-one-dimensional Ising-like
antiferromagnet BaCo2V2O8 in a transverse magnetic field,
M. Matsuda, H. Onishi, A. Okutani, J. Ma, H. Agrawal, T. Hong, D. M. Pajerowski, J. R. D. Copley,
K. Okunishi, M. Mori, S. Kimura, M. Hagiwara,
Phys. Rev. B 96, 024439 (2017).
(84) Theory of spin hydrodynamic generation,
M. Matsuo, Y. Ohnuma, S. Maekawa,Phys. Rev. B 96, 020401(R) (2017).
(85) Fabrication and magnetic control of Y3Fe5O12 cantilevers,
Y. Seo, K. Harii, R. Takahashi, H. Chudo, K. Oyanagi, Z. Qiu, T. Ono, Y. Shiomi, E. Saitoh,Appl. Phys. Lett. 110, 132409 (2017).
(86) Magnetization dynamics and its scattering mechanism in thin CoFeB films with interfacial
anisotropy,- 136 -

JAEA-Evaluation 2018-003

Okada, S. He, B. Gu, S. Kanai, A. Soumyanarayanan, S. T. Lim, M. Tran, M. Mori, S. Maekawa, F.
Matsukura, H. Ohno, C. Panagopoulos,
PNAS 144, 3815 (2017).
(87) Gyroscopic g factor of rare earth metals,
Y. Ogata, H. Chudo, M. Ono, K. Harii, M. Matsuo, S. Maekawa, E. Saitoh,Appl. Phys. Lett. 110, 072409 (2017).
(88) New p- and n-type ferromagnetic semiconductors: Cr-doped BaZn2As2,
B. Gu, S. Maekawa,
AIP Advances 7, 055805 (2017).
(89) Variational Wavefunction for the Periodic Anderson Model with Onsite Correlation Factors,
K. Kubo, H. Onishi,
J. Phys. Soc. Jpn. 86, 013701 (2017).
(90) Spin-mechatronics,
M. Matsuo, E. Saitoh, S. Maekawa,
J. Phys. Soc. Jpn. 86, 011011 (2017).
(91) Skew Scattering from Correlated Systems: Impurities and Collective Excitations in the Spin Hall
Effect,T. Ziman, Bo Gu, S. Maekawa,
J. Phys. Soc. Jpn. 86, 011005 (2017).
(92) Linear magnetoresistance in a topological insulator Ru2Sn3,
Y. Shiomi, E. Saitoh,
AIP Advances 7, 035011 (2017).
(93) Measurement of Spin Pumping Voltage Separated from Extrinsic Microwave Effects,
R. Iguchi, E. Saitoh,
J. Phys. Soc. Jpn. 86, 011003 (2017).
(94) Spin Seebeck effect in insulating epitaxial gamma-Fe2O3 thin films,
P. Jimenez-Cavero, I. Lucas, A. Anadon, R. Ramos, T. Niizeki, MH. Aguirre, PA. Algarabel, K.
Uchida, M.R. Ibarra, E. Saitoh, L. Morellon,
Appl. Mater. 5, 026103 (2017).
(95) Tunable magnon-photon coupling in a compensating ferrimagnet-from weak to strong coupling,
H. Maier-Flaig, M. Harder, S. Klingler, Z. Qiu, E. Saitoh, M. Weiler, S. Geprags, R. Gross, S. T. B.
Goennenwein, H. Huebl,
Appl. Phys. Lett. 110, 132401 (2017).
(96) Temperature dependence of the spin Seebeck effect in [Fe3O4/Pt]n multilayers,
R. Ramos, T. Kikkawa, A. Anadón, I. Lucas, K. Uchida, P. A. Algarabel, L. Morellón, M. H.
Aguirre, E. Saitoh, M. R. Ibarra,
AIP Advances 7, 055915 (2017).
(97) Tunable Sign Change of Spin Hall Magnetoresistance in Pt/NiO/YIG Structures,- 137 -

JAEA-Evaluation 2018-003

D. Hou, Z. Qiu, J. Barker, K. Sato, K. Yamamoto, S. Velez, J.M. Gomez-Perez, L.E. Hueso,
F. Casanova, E. Saitoh,Phys. Rev. Lett. 118, 147202 (2017).
(98) Time-resolved study of field-induced suppression of longitudinal spin Seebeck effect,
T. Hioki, R. Iguchi, Z. Qiu, D. Hou, K. Uchida, E. Saitoh,Appl. Phys. Exp. 10 (2017) 073002.
(99) Thermographic measurements of the spin Peltier effect in metal/yttrium-iron-garnet junction
systems,
S. Daimon, K. Uchida, R. Iguchi, T. Hioki, E. Saitoh,Phys. Rev. B 96, 024424 (2017).
(100) Terahertz Spin Currents and Inverse Spin Hall Effect in Thin-Film Heterostructures Containing
Complex Magnetic Compounds,
T. Seifert, U. Martens, S. Gunther, M. A. W. Schoen, F. Radu, X. Z. Chen, I. Lucas, R. Ramos, M.
H. Aguirre, P. A. Algarabel, A. Anadon, H. S. Korner, J. Walowski, C. Back, M. R. Ibarra, L.
Morellon, E. Saitoh, M. Wolf, C. Song, K. Uchida, M. Munzenberg, I. Radu, T. Kampfrath,Spin 7, 1740010 (2017).
(101) Unexpected structural and magnetic depth dependence of YIG thin films,
J. F. K. Cooper, C. J. Kinane, S. Langridge, M. Ali, B. J. Hickey, T. Niizeki, K. Uchida, E. Saitoh,
H. Ambaye, A. Glavic,
Phys. Rev. B 96, 104404 (2017).
(102) Generation of megahertz-band spin currents using nonlinear spin pumping,
S. Watanabe, D. Hirobe, Y. Shiomi, R. Iguchi, S. Daimon, M. Kameda, S. Takahashi, E. Saitoh,
Scientific Reports 7, 4576 (2017).
(103) Long-distance excitation of nitrogen-vacancy centers in diamond via surface spin waves,
D. Kikuchi, D. Prananto, K. Hayashi, A. Laraoui, N. Mizuochi, M. Hatano, E. Saitoh, Y. Kim, CA.
Meriles, T. An,
Appl. Phys. Exp. 10, 103004 (2017).
(104) Magnetic thermal conductivity far above the Neel temperature in the Kitaev-magnet candidate
alpha-RuCl3,
D. Hirobe, M. Sato, Y. Shiomi, H. Tanaka, E. Saitoh,Phys. Rev. B 95, 241112 (2017).
(105) Magnon-polaron transport in magnetic insulators,
B. Flebus, K. Shen, T. Kikkawa, K. Uchida, Z. Qiu, E. Saitoh, R. A. Duine, G. E. W. Bauer,
Phys. Rev. B 95, 144420 (2017).
(106) Nonlocal magnon-polaron transport in yttrium iron garnet,
L. J. Cornelissen, K. Oyanagi, T, Kikkawa, Z. Qiu, T. Kuschel, G. E. W. Bauer, B. J. van Wees, E.
Saitoh,Phys. Rev. B 96, 104441 (2017).

- 138 -

JAEA-Evaluation 2018-003(107) Oscillatory Nernst effect in Pt vertical bar ferrite vertical bar cuprate-superconductor trilayer
films,
Y. Shiomi, J. Lustikova, E. Saitoh,
Scientific Reports 7, 5358 (2017).
(108) Spin conversion on the nanoscale,Y. Otani, M. Shiraishi, A. Oiwa, E. Saitoh, S. Murakami,
Nature Physics 13, 829 (2017).
(109) Spin Current Generation Using a Surface Acoustic Wave Generated via Spin-Rotation Coupling,
D. Kobayashi, T. Yoshikawa, M. Matsuo, R. Iguchi, S. Maekawa, E. Saitoh, Y. Nozaki,
Phys. Rev. Lett. 119, 077202 (2017).
(110) Spin-current-induced magnetoresistance in trilayer structure with nonmagnetic metallic
interlayer,
R. Iguchi, K. Sato, K. Uchida, E. Saitoh,Jpn. J. Appl. Phys. 56, 040306 (2017).
(111) All-optical observation and reconstruction of spin wave dispersion,
Y. Hashimoto, S. Daimon, R. Iguchi, Y. Oikawa, K. Shen, K. Sato, D. Bossini, Y. Tabuchi, T. Satoh,
B. Hillebrands, G. E. W. Bauer, Y. H. Johansen, A. Kirilyuk, T. Rasing, E. Saitoh,
Nature Commun. 8, 15859 (2017).
(112) Antiferromagnetic anisotropy determination by spin Hall magnetoresistance,
H. Wang, D. Hou, Z. Qiu, T. Kikkawa, E. Saitoh, XF. Jin,
J. Appl. Phys. 122, 083907 (2017).
(113) Concomitant enhancement of the longitudinal spin Seebeck effect and the thermal conductivity
in a Pt/YIG/Pt system at low temperatures,
R. Iguchi, K. Uchida, S. Daimon, E. Saitoh,Phys. Rev. B 95, 174401 (2017).
(114) Detection of induced paramagnetic moments in Pt on Y3Fe5O12 via x-ray magnetic circulardichroism,
T. Kikkawa, M. Suzuki, J. Okabayashi, K. Uchida, D. Kikuchi, Z. Qiu, E. Saitoh,Phys. Rev. B 95, 214416 (2017).
(115) Electric field effect on magnetic anisotropy for Fe-Pt-Pd alloys,
S. Kikushima, T. Seki, K. Uchida, E. Saitoh, K. Takanashi,
AIP Advances 7, 085210 (2017).
(116) Enhancement of the spin Peltier effect in multilayers,
K. Uchida, R. Iguchi, S. Daimon, R. Ramos, A. Anadon, I. Lucas, P. A. Algarabel, L. Morellon, M.
H. Aguirre, M. R. Ibarra, E. Saitoh,Phys. Rev. B 95, 184437 (2017).
(117) Wavelength-selective spin-current generator using infrared plasmonic metamaterials,
S. Ishii, K. Uchida, TD. Dao, Y. Wada, E. Saitoh, T. Nagao,- 139 -

JAEA-Evaluation 2018-003

Appl. Photonics 2, 106103 (2017).
(118) Spin Seebeck effect in the polar antiferromagnet alpha-Cu2V2O7,
Y. Shiomi, R. Takashima, D. Okuyama, G. Gitgeatpong, P. Piyawongwatthana, K. Matan, T. J. Sato,
E. Saitoh,Phys. Rev. B 96, 180414(R) (2017).
(119) Experimental evidence consistent with a magnon Nernst effect in the antiferromagnetic insulator
MnPS3,
Y. Shiomi, R. Takashima, E. Saitoh,Phys. Rev. B 96, 134425 (2017).
(120) Magnetic-field-induced decrease of the spin Peltier effect in Pt/Y3Fe5O12 system at room
temperature,
R. Itoh, R. Iguchi, S. Daimon, K. Oyanagi, K. Uchida, E. Saitoh,Phys. Rev. B 96, 184422 (2017).
2018(121) Observation of gyromagnetic reversal,
M. Imai, Y. Ogata, H. Chudo, M. Ono, K. Harii, M. Matsuo, Y. Ohnuma, S. Maekawa, E. Saitoh,Appl. Phys. Lett. 113, 052402 (2018). [Editor’s pick](122) Spin transfer torques and spin-dependent transport in a metallic F/AF/N tunneling junction,
K. Yamamoto, O. Gomonay, J. Sinova, G. Schwiete,
Phys. Rev. B 98, 014406 (2018).
(123) Spin colossal magnetoresistance in an antiferromagnetic insulator,
Z. Qiu, D. Hou, J. Barker, K. Yamamoto, O. Gomonay, E. Saitoh,
Nature Materials 17, 577 (2018).
(124) Spin caloric effects in antiferromagnets assisted by an external spin current,
O. Gomonay, K. Yamamoto, J. Sinova,
J. Phys. D: Appl. Phys. 51, 264004 (2018).
(125) Dynamical DMRG study of spin and charge excitations in the four-leg t-t'-J ladder,T. Tohyama, M. Mori, S. Sota,
Phys. Rev. B 97, 235137 (2018).
(126) Dirac surface state-modulated spin dynamics in a ferrimagnetic insulator at room temperature,
C. Tang, Q. Song, C.-Z. Chang, Y. Xu, Y. Ohnuma, M. Matsuo, Y. Liu, W. Yuan, Y. Yao, J. S.
Moodera, S. Maekawa, W. Han, J. Shi,
Sci. Adv. 4, eaas8660 (2018).
(127) Magnetic Phase Diagram of Frustrated Spin Ladder,
T. Sugimoto, M. Mori, T. Tohyama, S. Maekawa,Phys. Rev. B 97, 144424 (2018).
(128) Dynamical quadrupole structure factor of ferromagnetic frustrated chain,
H. Onishi,- 140 -

JAEA-Evaluation 2018-003

Physica B 536, 346 (2018).
(129) Magnetic Anisotropy by Rashba Spin-Orbit Coupling in Antiferromagnetic Thin Films,
J. Ieda, S. E. Barnes, S. Maekawa,
J. Phys. Soc. Jpn. 87, 053703 (2018).
(130) Giant Faraday rotation in metal-fluoride nanogranular films,
N. Kobayashi, K. Ikeda, Bo Gu, S. Takahashi, H. Masumoto, S. Maekawa,
Scientific Reports 8, 4978 (2018).
(131) Neutron scattering study of yttrium iron garnet,
S. Shamoto, T. U. Ito, H. Onishi, H. Yamauchi, Y. Inamura, M. Matsuura, M. Akatsu, K. Kodama,
A. Nakao, T. Moyoshi, K. Munakata, T. Ohhara, M. Nakamura, S. Ohira-Kawamura, Y. Nemoto, K.
Shibata,Phys. Rev. B 97, 054429 (2018).
(132) Spin Current Noise of the Spin Seebeck Effect and Spin Pumping,
M. Matsuo, Y. Ohnuma, T. Kato, S. Maekawa,Phys. Rev. Lett., 120, 037201 (2018).
(133) Stimulated emission of dark matter axion from condensed matter excitations,N. Yokoi, E. Saitoh,J. High Energy Phys. (2018).
(134) Anomalous reversal of transverse thermoelectric voltage in Co delta Fe100-delta/YIG junction,
R. Ramos, P. Wongjom, R. Iguchi, A. Yagmur, Z. Qiu, S. Pinitsoontorn, K. Uchida, E. Saitoh,J. Magn. Magn. Mater. 447, 134 (2018).
(135) Magnon detection using a ferroic collinear multilayer spin valve,
J. Cramer, F. Fuhrmann, U. Ritzmann, V. Gall, T. Niizeki, R. Ramos, Z. Qiu, D. Hou, T. Kikkawa, J.
Sinova, U. Nowak, E. Saitoh, M. Klaui,
Nature Commun. 9, 1089 (2018).
(136) Phase-resolved spin-wave tomography,
Y. Hashimoto, TH. Johansen, E. Saitoh,Appl. Phys. Lett. 112, 072410 (2018).
(137) Spin transport across antiferromagnets induced by the spin Seebeck effect,
J. Cramer, U. Ritzmann, BW. Dong, S. Jaiswal, Z. Qiu, E. Saitoh, U. Nowak, M. Klaui,
J. Phys. D: Appl. Phys. 51, 144004 (2018).
(138) Annealing-temperature-dependent voltage-sign reversal in all-oxide spin Seebeck devices using
RuO2,
A. Kirihara, M. Ishida, R. Yuge, K. Ihara, Y. Iwasaki, R. Sawada, H. Someya, R. Iguchi, K. Uchida,
E. Saitoh, S. Yorozu,
J. Phys. D: Appl. Phys. 51, 154002 (2018).
(139) The bimodal distribution spin Seebeck effect enhancement in epitaxial Ni 0.65Zn0.35Al0.8Fe1.2O4
thin film,- 141 -

JAEA-Evaluation 2018-003

H. Wang, D. Hou, T. Kikkawa, R. Ramos, K. Shen, ZY. Qiu, Y. Chen, M. Umeda, Y. Shiomi, XF.
Jin, E. Saitoh,Appl. Phys. Lett. 112, 142406 (2018).
(140) Spin colossal magnetoresistance in an antiferromagnetic insulator,
ZY. Qiu, D. Hou, J. Barker, K. Yamamoto, O. Gomonay, E. Saitoh,
Nature Materials 17, 577 (2018).
(141) Lock-in thermography measurements of the spin Peltier effect in a compensated ferrimagnet andits comparison to the spin Seebeck effect,
A. Yagmur, R. Iguchi, S. Geprags, A. Erb, S. Daimon, E. Saitoh, R. Gross, K. Uchida,
J. Phys. D: Appl. Phys. 51, 194002 (2018).
(142) Observation of anisotropic magneto-Peltier effect in nickel,
K. Uchida, S. Daimon, R. Iguchi, E. Saitoh,
Nature 558, 95 (2018).
(143) Generation of spin currents from one-dimensional quantum spin liquid,
D. Hirobe, T. Kawamata, K. Oyanagi, Y. Koike, E. Saitoh,
J. Appl. Phys. 123, 123903 (2018).
(144) Frequency and wavenumber selective excitation of spin waves through coherent energy transferfrom elastic waves,
Y. Hashimoto, D. Bossini, TH. Johansen, E. Saitoh, A. Kirilyuk, T. Rasing,
Phys. Rev. B 97, 140404(R) (2018).
(145) Enhanced thermo-spin effects in iron-oxide/metal multilayers,
R. Ramos, I. Lucas, PA. Algarabel, L. Morellon, K. Uchida, E. Saitoh, MR. Ibarra,
J. Phys. D: Appl. Phys. 51, 224003 (2018).
(146) Dynamical quadrupole structure factor of ferromagnetic frustrated chain,
H. Onishi,
Physica B 536, 364 (2018).
Invited Talks at International Conferences
2015(1) Prof. A. Einstein meets Spintronics,
S. Maekawa,
Lecture at Peking University, Beijing, China, Dec. 11, 2015.
(2) Spin and Heat,
S. Maekawa,International Workshop 2015 SPIN ENERGY MATERIALS, Sendai, Japan, Dec. 3, 2015.
(3) Theory of spin Seebeck effect in magnetic multilayers,
H. Adachi,
Magnetics and Optics Research International Symposium (Moris 2015), Penang, Malaysia, Dec. 2,- 142 -

JAEA-Evaluation 2018-003

2015.
(4) Spin Hall Effects due to Critical Spin Fluctuations in Spin Glass and Other Magnetic States,
S. Maekawa,Tohoku Forum for Creativity Spintronics with Antiferromagnets workshop, Sendai, Japan, Nov. 16,
2015.
(5) Sign change of spin Hall effect in Cu alloys by electrons correlation,
M. Mori,
Gordon Godfrey Workshop, Sydney, Australia, Nov. 5, 2015.
(6) Einstein meets Spintronics,
S. Maekawa,
Gordon Godfrey Workshop, Sydney, Australia, Nov. 2, 2015.
(7) Power Spintronics,
S. Maekawa,
Lecture at Kaiserslautern University, Kaiserslautern, Germany, Oct. 22, 2015.
(8) Spin Hall Effect in Cu Alloys and Phonon Hall Effect: Skew Scattering of Electrons and Phonons,
M. Mori,
The Mainz-Tohoku-JAEA-Kaiserslautern joint workshop, Mainz, Germany, Oct. 23, 2015.
(9) Efficiency and Enhancement of Spin-Seebeck Interactive,
S. Maekawa,
The Mainz-Tohoku-JAEA-Kaiserslautern joint workshop, Mainz, Germany, Oct. 23, 2015.
(10) Efficiency and Enhancement of Spin-Heat Interactive,
S. Maekawa,Workshop on Non-linear spin-heat interactions, Columbus, USA, Sep. 16, 2015.
(11) Einstein meets Spintronics,
S. Maekawa,
Lecture at the State University of New York, Buffalo, USA, Sep.14, 2015.
(12) Spin rotation effects observed by NMR/NQR ―Barnett effect, Rotation Doppler effect, andBerry phase―,
H. Chudo,
Gordon Research Conference, Spin Dynamics in Nanostructures, Hong Kong, China, Jul. 26-31,
2015.
(13) Mechanicaleffects in spintronics,
S. Maekawa,International Center for Nano-Systems (ICNS); Opening Workshop on Advances in Nanoscience
Applications, Cambridge, UK, Jul. 13, 2015.
(14) Mechanical generation ofspin and spin current,
S. Maekawa,Spin Mechanics 3, Munchen, Germany, Jun. 26, 2015.

- 143 -

JAEA-Evaluation 2018-003(15) Spin mechatronics; Mechanical generation of spin and spin current,
S. Maekawa,
Lecture in BCMaterials and Univ. del Pais Vasco (UPV/EHU), Bilbao, Spain, Jun. 30, 2015.
(16) Phonons, Magnons and Spin Current,
S. Maekawa,International Conference on Magnetism 2015, Barcelona, Spain, Jul. 7, 2015.
(17) Theory of spin mechatronics,
M. Matsuo,
New Perspectives in Spintronic and Mesoscopic Physics, Kashiwa, Japan, Jun 10, 2015.
(18) Mechanical Effects in Spintronics,
S. Maekawa,
York-Tohoku-Kaiserslautern Research Symposium on New Concept Spintronics Devices, York, Jun.
11, 2015.
(19) Spin current,
S. Maekawa,4th Super-PIRE REIMEI Workshop on Frontiers of Condensed Matter Physics, Vancouver, May 20,
2015.
(20) Thermally driven spin current generation,
S. Maekawa,2015 Hangzhou Workshop on Quantum Matter and Asia-Pacific Workshop on Strong Correlated
System, Hangzhou, Apr. 14, 2015.
(21) Physics and Application of Spin Current in Spintronics,
S. Maekawa,Seminar at Seoul National University, Korea, Mar. 11, 2015.
(22) Phonon Hall effect in the terbium-gallium-garnet: Skew scattering of phonon,
M. Mori,
39th ANNUAL CONDENSED MATTER and MATERIALS MEETING, Wagga Wagga, Australia,
Feb. 3, 2015.
(23) Spin Mechatronics ―Mechanical Generation of Spin and Spin Current―,
S. Maekawa,Seminar at University Paris Sud, Orsey, Jan. 16, 2015.
(24) Spintronics -Physics of spin currents and magnetization dynamics,
J. Ieda,Seminar at Particle Theory and Cosmology Group, Tohoku University, Sendai, Jan. 15, 2015.
(25) Power Spintoronics,
S. Maekawa,Seminar at Max Planck Institute for Microstruture Physics, Halle, Jan. 14, 2015.
2016- 144 -

JAEA-Evaluation 2018-003(26) Prof. A. Einstein meets Spintronics,
S. Maekawa,
The lecture meeting commemorating the 30th anniversary of The Foundation Advanced
Technology Institute (ATI), Tokyo, Japan, Nov. 22, 2016.
(27) Spin Current and Power Spintronics,
S. Maekawa,
Lecture at University of California, Riverside, Los Angeles, USA, Nov. 10, 2016.
(28) Spin Mechatronics: Mechanical Generation of Spin Current,
S. Maekawa,Euro-Asian Symposium Trends in Magnetism (EASTMAG-2016), Krasnoyarsk, Russia, Aug. 15,2016.
(29) Spin Hall Effects due to Critical Spin Fluctuations,S. Maekawa,Spin Caloritronics 7, Utrecht, the Netherlands, Jul. 15, 2016.
(30) Power Spintronics,
S. Maekawa,
Lecture at International Center for Materials Nanoarchitectonics (MANA), National Institute forMaterials Science (NIMS), Tsukuba, Japan, Jul. 8, 2016.
(31) Prof. Einstein meets Spintronics,
S. Maekawa,
Lecture at European Spallation Source ERIC (ESS), Lund, Sweden, Jun. 23, 2016.
(32) Spin current;Its physics and applications,S. Maekawa,Insulatronics 2016, Longyearbyen, Norway, May 31, 2016.
(33) Spin current; Its physics and applications,S. Maekawa,
Summit of Materials Science 2016 (SMS 2016), Sendai, Japan, May 19,2016.
(34) Magnetic Excitations of Spin Nematic State in Frustrated Ferromagnetic Chain,
H. Onishi,
Post-K Workshop, Tokyo, Japan, May 7, 2016.
(35) Spin current; Its physics and applications,S. Maekawa,
Energy Materials Nanotechnology Meeting, Dubrovnik, Croatia, May 4, 2016.
(36) Prof. A. Einstein meets Spintronics,
S. Maekawa,
Lecture at the Institute of Physics in Zagreb, Zagreb, Croatia, May 2, 2016.
(37) Spin Current, Spin Conversion and Power Spintronics,
S. Maekawa,- 145 -

JAEA-Evaluation 2018-003

5th International Conference on Superconductivity and Magnetism, Fethiye, Turkey, Apr. 24, 2016.
(38) Application of Spintronics to Nuclear Technology,
S. Maekawa,International Workshop on Radiation Resistant Sensors and Related Technologies for Nuclear
Power Plant Decommissioning 2016 (R2SRT2016), Fukushima, Japan, Apr. 20, 2016.
(39) Power Spintronics,
S. Maekawa,
Lecture at Toyota Central R&D Labs., Inc. Feb. 12, 2016.
(40) Barnett field observed by NMR and NQR,
H. Chudo,
Asia-Pacific Workshop (APW)- CEMS Joint Workshop, Wako, Japan, Jan. 25, 2016.
(41) Spin hydrodynamic generation,
M. Matsuo,
Asia-Pacific Workshop (APW)- CEMS Joint Workshop, Wako, Japan, Jan. 25, 2016.
(42) Spin Hall Effects due to Critical Spin Fluctuations,S. Maekawa,
Asia-Pacific Workshop (APW)- CEMS Joint Workshop, Wako, Japan, Jan. 25, 2016.
(43) Spintronics,
S. Maekawa,Workshop: CROSSroads of Users and J-PARC #17, Tokai-mura, Japan, Jan. 19, 2016.
(44) Prof. Einstein meets Spintronics,
S. Maekawa,
The Hong Kong Forum of Physics: Novel Quantum States and Their Manipulations (HKFP-2015),
Hong Kong, China, Jan. 10, 2016.
(45) Theoretical Study on Spin Current Generation and Manipulation,
S. Maekawa,
Status Meeting on Nano Spin Conversion 2016, Sendai, Japan, Jan. 8, 2016.
2017(46) Spin Seebeck and Spin Peltier Effects,
S. Maekawa,6th JSPS Core-to-Core Workshop, Sendai, Japan, Dec. 15, 2017.
(47) Spin Seebeck and Spin Peltier Effects,
S. Maekawa,
CEMS-Tsinghua-APW Joint Workshop, Wako, Japan, Dec. 6, 2017.
(48) Spin Currents in Spintronics,
S. Maekawa,
Lecture at Ecole polytechnique, Paris, France, Oct. 6, 2017.
(49) Spin Seebeck and Spin Peltier Effects,- 146 -

JAEA-Evaluation 2018-003

S. Maekawa,Workshop Spin, charge and energy transport in novel materials, Hvar, Croatia, Oct. 3, 2017.
(50) Spintronic micro-power generation,
J. Ieda,International conference on condensed matter physics, Indian Statistical Institute, Kolkata, India,
Nov. 15, 2017.
(51) Theory and Experiment on Spin Currents,
S. Maekawa,
MAINZ Summer School New Directions in Spintronic Research, Beijing, China, Sep. 25, 2017.
(52) Spin Peltier effect,
S. Maekawa,Spin Summit 2017, Jinggangshan, China, Aug. 14, 2017.
(54) Mechanical Generation of Spin Current,
S. Maekawa,13th International Workshop on Magnetism and Superconductivity at the Nanoscale, Coma-ruga,
Spain, Jul. 3, 2017.
(55) Spin Mechatononics-Prof. A. Einstein meets Spintronics-,
S. Maekawa,
The lecture at the University of Zaragoza, Zagreb, Spain, Jun. 30, 2017.
(56) Theory of Heat and Spin Current,
S. Maekawa,
Spincaloritronics 8, Regensburg, Germany, Jun. 13, 2017.
(57) Spin Transport in Spintronics,
S. Maekawa,3rd Computational Chemistry (CC) symposium, Thessaloniki, Greece, Apr. 23, 2017.
(58) Spin Transport in Spintronics,
S. Maekawa,
Lecture at Peking University, Beijing, China, Mar. 30, 2017.
(59) Mechanical effects on spintronics,
S. Maekawa,
The KITS 2017 Forum: New Horizons in Condensed Matter Physics, Beijing, China, Mar. 29,2017.
(60) Mechanical Effects on Spintronics,
S. Maekawa,Spin mechanics 4, Lake Louise, Canada, Feb. 20, 2017.
(61) Spin transport in a variety of systems,
S. Maekawa,
SHINES Workshop on Spins and Heat, Palm Springs, USA, Jan. 12, 2017.

- 147 -

JAEA-Evaluation 2018-003

Books and Scientific Articles(1) Ultrafast spintronics: Back to basics,
H. Adachi,
Nature Physics 11, 707 (2015).
(2) Spintronics ― past, present, future ―,S. Maekawa,
Kotaibutsuri 50, 175 (2015) (in Japanese).
(3) Study of Barnet effect by nuclear magnetic resonance,
H. Chudo,
Kotaibutsuri 50, 85 (2015) (in Japanese).
(4) Spin current generated by acoustic wave,
M. Matsuo,
Parity 30, 17 (2015) (in Japanese).
(5) Multi-Vortex States in Mesoscopic Superconductors,
S. Okayasu, N. Kokubo, K. Kadowaki,
The Oxford Handbook of Small Superconductors, Chapter 3, Aant Narlikar (Ed.), Oxford
University Press (2016).
(6) Mutual conversion of spin and heat,
Y. Ohnuma, M. Matsuo, S. Maekawa, E. Saitoh,
Magune 12, 217 (2017) (in Japanese).
(7) Spintronics and spin current,
S. Maekawa,
Parity 32, 12 (2017) (in Japanese).
(8) Spin-hydro-generation by liquid metal,
M. Matsuo,
Ouyoubutsuri 86, 31 (2017) (in Japanese).
(9) Spin Current Second Edition,
S. Maekawa, S.O. Valenzuela, E. Saitoh, T. Kimura, Eds.,
Oxford University Press (2017).
Patents(1) 磁性熱電変換素子及びそれを含む熱電変換システム,
石田真彦, 桐原明宏, 澤田亮人, 齊藤英治, 井口亮, 追川康之, 小野正雄,
国内特許出願： 特願 2017-237459 号 (2017),
Thermoelectric conversion system having electromagnetic thermoelectric conversion elements,
M. Ishida, A. Kirihara, R. Sawada, S. Saitoh, R. Iguchi, Y. Oikawa, M. Ono,
National Patent Application: App. No. 2017-237459 (2017).

- 148 -

JAEA-Evaluation 2018-003(2) 計測機能付き軸受
石田真彦, 桐原明宏, 澤田亮人, 齊藤英治, 井口亮, 追川康之, 小野正雄,
国内特許出願：特願 2017-173877 号 (2017),
Bearing with measuring function,
M. Ishida, A. Kirihara, R. Sawada, S. Saitoh, R. Iguchi, Y. Oikawa, M. Ono,
National Patent Application: App. No. 2017-237459 (2017).
Awards(1) 日本物理学会領域３（磁性）第一回学生奨励賞 『マグノンによるスピン流生成の線形応答理論』,
大沼悠一 (2015 年 11 月),
Physical Society of Japan region 3 (magnetic) the 1st Student Award, “Linear response theory of
the magnon spin current generation”,
Y. Ohnuma (Nov. 2015).
(2) 平成 28 年度文部科学大臣表彰 若手科学者賞 『ナノ磁性体による磁気エネルギー利用法の理論
研究』,

家田淳一 (2016 年 4 月),
The young scientists' prize of 2016 fiscal year form the minister of education, culture, sports,science and technology, “Theoretical study for utilizing method of magnetic energy derived frommagnetic nanoparticles”,
J. Ieda (Apr. 2016).
(3) 日本物理学会領域３（磁性）第二回学生奨励賞『スピン流体発電現象の開拓』,
高橋遼 (2016 年 10 月),
Physical Society of Japan region 3 (magnetic) the 2nd student award, “Pioneer research of spincurrent generation by fluid motion”,
R. Takahashi (Oct. 2016).
(4) 平成 28 年度理事長表彰 研究開発功績賞
松尾衛, (2016 年 11 月),
The R&D award of 2016 fiscal year form the director of JAEA,
M. Matsuo (Nov. 2016).
(5) 平成 29 年度科学技術分野の文部科学大臣表彰㻌 科学技術賞㻌 研究部門 「スピン流物理学の開拓及びその応用に関する研究」（文部科学省）,
齊藤英治 (2017 年 4 月),
The Science and Technology Award of 2016 fiscal year form the minister of education, culture,
sports, science and technology, “Pioneer research of fluid spintronics” (The Ministry of Education,
Culture, Sports, Science and Technology),
E. Saitoh (Apr. 2017).
(6) 第 14 回本多フロンティア賞「スピン流物性科学の開拓」（公益財団法人本多記念会）,- 149 -

JAEA-Evaluation 2018-003

齊藤英治 (2017 年 5 月),
The 14th Honda Frontier Prize, “Opening up condensed matter physics for spin current” (The
Honda Memorial Foundation),
E. Saitoh (May 2017).
(7) 第 34 回井上学術賞「スピン流物性科学の開拓」（公益財団法人㻌 井上科学振興財団）,
齊藤英治, （2018 年 2 月）,
The 34th Inoue Prize for Science, “Opening up condensed matter physics for spin current” (Inoue
Foundation for Science),
E. Saitoh (Feb. 2018).
Press Release(1) 超伝導体中の準粒子スピン流による巨大スピンホール効果の観測に成功: 次世代超伝導スピ
ントロニクス素子実現に道筋（2015 年 5 月）,
Observation of giant spin-Hall effect mediated by quasiparticles in a superconductor (May 2015).
(2) 液体金属流から電気エネルギーを取り出せることを解明: 電子の自転運動を利用した新しい発電へ（2015 年 11 月）,
Electrical generation from quantum mechanical spinning motion in a liquid metal (Nov. 2015).
(3) スピン流を用いて磁気の揺らぎを高感度に検出することに成功: スピン流を用いた高感度磁気センサへ道（2015 年 11 月）,
Strong Suppression of the Spin Hall Effect in the Spin Glass State (Nov. 2015).
(4) 世界で初めての透明強磁性体の開発に成功: 新しい磁気光学効果の発見（2016 年 9 月）,
Optically Transparent Ferromagnetic Nanogranular Films with Tunable Transmittance (Sep. 2016).
(5) 新たなスピン流の担い手を発見: 量子効果を用いた熱電発電、情報伝送へ道（2016 年 9 月）,
One-dimensional spinon spin currents (Sep. 2016).
(6) 音波を用いて銅から磁気の流れを生み出すことに成功: 磁石や貴金属を必要としない磁気デバ
イス開発へ（2017 年 8 月）,
Spin current generation in Cu by acoustic wave injection ―towards magnetic devices without rare
metals and magnet― (Aug. 2017).
(7) スピン流の雑音から情報を引き出す: スピン流高効率制御に向けた新手法（2018 年 1 月）,
Spin Current Noise of the Spin Seebeck Effect and Spin Pumping ―A new method toward highefficiency spin current generation― (Jan. 2018).
(8) 従来の 40 倍もの巨大ファラデー効果を示す薄膜材料の開発に成功: 45 年ぶりの新しい磁気光学材料の発見（2018 年 3 月）,
Giant Faraday rotation in metal-fluoride nano-granular films ―Discovery of the magneto-opticaleffect dreamed since 1972― (Mar. 2018).

- 150 -

JAEA-Evaluation 2018-003

Observation of the Barnett effect in paramagnetic states
Background
Barnett effect(1915): magnetization by rotation.

Ferromagnet: (Fe, Co) S. J. Barnett, Phys. Rev. 6, 239-270 (1915).
Paramagnet: no reports in 100 years(small susceptibility, need in-situ observation)

It can be used to generate spin current
theory：M. Matsuo, et al., Phys. Rev. Lett. 106 (2011), 076601.
→in-situ observation using current technologiesΩb)Electron spina)Nuclear spin

Element technology
・high-speed spinner(JEOL, 20kHz)
・NMR technique for rotating
sample on rotating unit
(our technique)

Element technology
・high-speed spinner(JEOL , 8kHz)
・-Fluxgate magnetometer・magnetic shield (Pelmalloy)(fluctuation of theenvironmental <0.1nT)

H. Chudo, et al. APEX (2014)(progressive results)
correlation with
- Doppler effect: H. Chudo, et al. JPSJ (2015)- Berry phase:
H. Chudo, in preparation+Ω�
Air flow
+�

+M
+MΩ
Ω㻌

+ΔH 㻌

z�

Fluxgate
magnetometer
Spinner (JEOL, 8kHzmax)

M. Ono, et al. PRB (2015)(progressive results)
next slide

Physical property measurements using the Barnett effecta)Use ”similarity ” in rotation and magnetismb)Use ”difference”

Development for high precision measurement(1,000 times improved)→g’ factor determinable→many materials (prototype : Gd only)

Development for low temp. meas.
(120K~room temp.)→temp. dependence
ferrimagnet

sping’ = 2

Specimen (lanthanide)g‘Specimen ((Fe-Co)g‘

Gd

2.00±0.08

Bulk(50:50)

1.92

Tb

1.53±0.17

Nano-particles

1.76

Dy

1.15±0.32

Experimental determination of
the g’ factor for lanthanide forthe first time :Y. Ogata, et al. APL (2017)

Observation of enhancementof the orbital magnetic
moment in Nano-particles
Y. Ogata, et al. JMMM (2017)- 151 -

B sublatticenetby Mag. field

Ho3Fe5012

by rotation

sping’ ≒ 2orbit
g’ = 1

Magnetization

orbit
g’ = 1

A sublattice

anguler momentum
magnetic moment

Direct observation of angular momentum
compensation M. Imai, et al. APL(2018)

JAEA-Evaluation 2018-003

Research Group for Nanoscale Structure and Function of Advanced
Materials
1. Members
Leader: Katsuyuki Fukutani (Apr. 2018～)
Manager: Wataru Higemoto
Scientific Staff:

Yuki Fukaya, Takashi U. Ito, Satoshi Yasuda (Apr. 2017～), Shin-ichi Shamoto,㻌

Shinichi Machida (Apr. 2018～), Seiji Sakai (～Mar. 2016), Shiro Entani (～Mar. 2016), Yuki Uozumi(～Mar. 2017)
Post-Doctoral Fellow: Masahiro Yano (Apr. 2016～), Tomoo Terasawa (Apr. 2018～)
Student: [2016] Masahiro Yano (D3), [2017] Kohei Oshima (M2), Yosuke Uchibori (M2), Koji
Nakajima(M2), [2018] Takeshi Okazawa (M2)
2. Objectives
A thermodynamic property of a material usually depends on the normal bulk state, while a novel
state is manifested by translational-symmetry breaking as realized at surfaces and interfaces. In addition,different states are formed around defects and impurities, and these states influence the bulk property.
Hence, the study of local states is quite important in materials research. An experimental technique thatcan be used to selectively investigate surfaces, impurity/defects, and ultrathin films can extend the fieldof materials research. Existing technical developments enable us to efficiently produce high-intensity
beams, especially beams of neutrons, muons, and positrons, which are useful for studying various atomic
structures and dynamics of functional materials at the length scale of advanced beams. In addition,
experimental techniques that can observe local states such as surfaces, interfaces, and impurities havebeen developed as well, and they can be used to obtain new scientific insights. Our objective is todevelop these new advanced measurement techniques and study nanoscale structures and functions ofdevices and materials in order to clarify the essential properties of matters.
Currently, we conduct three research subjects of 1) local hydrogen and impurity state in oxide andmetal, 2) local magnetic and electronic state in magnetic and superconducting materials, and 3) structureand function of graphene and other atomic-layer systems. To clarify the physics behind exotic properties
realized in these materials, we are applying several experimental techniques including Total-reflection
high-energy positron diffraction (TRHEPD), which is a surface-sensitive tool owing to the totalreflection of positrons and muon spin rotation/relaxation (SR), which is sensitive technique to local
magnetic and electronic state.
3. Progress and research highlights
1) Research of local structures and functions of in the advanced materials with muon and neutron
A series of SR studies on insulating perovskite oxides using muonium (Mu) as a radioactive pseudoisotope of hydrogen revealed that a trace amount of Mu plays various and vital roles as donor, acceptor,- 152 -

JAEA-Evaluation 2018-003

Mu+-polaron complex, VO2+-Mu complex and so on, depending on implanted environments. The SR
spectroscopy was also applied to elucidate the mechanism of hydrogen-ion transport in a recently
synthesized perovskite oxyhydride such as BaTi(O1-xHx)3. We identified a new type of defect containing
Mu together with H in an oxygen vacancy, the pure H version of which is probably involved in theprocess of hydrogen-ion transport in this material as an intermediate metastable state. This study openeda new direction for the application of SR spectroscopy as a probe of excited hydrogen configurations[Ref. 29].
2) Magnetic and electronic state in functional materials
Muon was also applied to investigate magnetism and superconductivity. A superconductor lacking
an inversion center acquired much attention due to its possible novel superconductivity. For example, atheoretical model predicting a novel pairing state has been proposed, where a mixture of spin-singlet
and spin-triplet states is considered. CePt3Si is a unique example of lacking an inversion center in the
crystal structure among Ce-based heavy-fermion compounds where superconductivity is realized in theantiferromagnetic state. Our study revealed that the muon Knight shift preserves in the superconducting
state at a high field and decreases at low fields, suggesting novel pairing symmetry realized in CePt3Si.
The nuclear and magnetic structure and full magnon dispersions of yttrium iron garnet Y 3Fe5O12
have been studied using neutron scattering. The refined atomic structure is distorted to a trigonal spacegroup of R¯3. The highest-energy dispersion extends up to 86 meV, while the lowest-energy dispersion
below 14 meV exhibits a quadratic dispersion as expected from ferromagnetic magnons. The imaginary㻌part of q-integrated dynamical spin susceptibility χ”(E) exhibits a square-root energy dependence at low
energies.㻌 The magnon density of state is estimated from χ”(E) obtained on an absolute scale, which isconsistent with㻌 the single chirality mode for the magnon branch expected theoretically [Ref. 50].
3) Research of Structure and Function of surfaces and monolayer films
The structures and properties of novel two-dimensional atomic sheets fabricated on metal substrates

were investigated. The growth of graphene by chemical vapor deposition on gold and SiC substrates andits real time observation were achieved. The graphene growth initiated between the trenches of a gold
foil and continued parallel to the trenches. This suggests that the graphene growth on gold substrates issensitive to the surface morphology, which is completely different from the one on other metal substrates.
Furthermore, by using TRHEPD, we experimentally confirmed that graphene-substrate spacing isshifted by more than 1 Å through the hybridization with d-states of substrate materials, cobalt or copper.
Monolayer graphene was also studied by using proton permeability analysis. We found that the defectstructures in the graphene play role in proton permeability, and fundamental knowledge could beobtained for development of novel hydrogen isotope storage and selective hydron membrane [Ref. 26].
Other than graphene, we have investigated several monolayer system and surface state. Germanene
is germanium version of graphene on an Al substrate and it was clarified by using TRHEPD that the
germanene has an asymmetric buckled structure, contrary to the symmetric structure predicted bytheoretical calculations. Monolayer MoS2 and MoSe2, which are semiconductor and promising
candidate nano-materials for electronics. We revealed that a contact of the monolayers of MoS2 and- 153 -

JAEA-Evaluation 2018-003

MoSe2 with crystalline metal surface effectively induces strain in the monolayers, resulting inmodulation of electronic properties of the monolayers. The finding would serve as design anddevelopment of novel MoS2- and MoSe2-based devices. Shape uniformity of nanodots anddetermination of anisotropic diffusion on Si(110)-16×2 reconstructed structure are succeeded by detailed
elucidation of thermal decomposition of oxide layer using scanning tunneling microscope (STM). These
achievements establish new nanofabrication method and realize novel nanodevices [Refs. 17,32,41].
4.

New （or updated） strategy, research plans, and goals for next 3.5 years
Our objective is to study the physical and chemical properties revealed at nanoscale materials

including surfaces and interfaces. A key point is lowered symmetry, which brings about lifting ofdegeneracy thereby inducing novel functions. By clarifying the underlying mechanism behind such
peculiar features of nanoscale materials, we will explore novel functional materials. A special emphasis
will be put on the effects of hydrogen on the material properties and hydrogen behavior on the surfacesof and in materials.
1) Behavior of hydrogen in functional oxides
Having a moderate electronegativity, hydrogen reveals an amphoteric character in a matter and on
a material surface; it can be stabilized either in negatively charged (H), positively charged (H+) or
neutral (H0) states, acting as an electron acceptor or donor. Its resultant electronic state furthermore
reflects electron-phonon interaction. Although a growing attention has been paid to the H defect in andon functional materials, the nature of H has not been fully understood yet in many cases. In the next
three years and a half, we will investigate the charge dynamics of hydrogen in and on functional oxides
and elucidate its electronic structure using a muon spin rotation/relaxation (SR) technique combinedwith ordinary surface science techniques.
2) Magnetic and electronic properties of thin films, superlattices and bulk materials
We will concentrate on the investigation of novel atomic sheets, thin films and superlattices thatare expected to have exotic functional properties such as magnetism, superconductor and topologicalinsulator. Contrary to our conventional understanding of superconductors, one-atomic layer or singlelayer materials, e.g., FeSe, have recently been found to possess the superconductivity at finite
temperatures. Theoretical calculations expect that atomic sheets composed of heavier elements such as
Sn and Pb exhibit novel spin-related phenomena through strong spin-orbit interaction and the buckled
configurations due to symmetry breaking. A recent advance in the fabrication technique of thin films
and superlattices consisting of 4f-electron elements furthermore enables us to investigate heavy-fermion
in two-dimensional systems with its structural symmetry broken. In the next three and a half years, wewill try to fabricate such novel structures including atomic sheets and superlattices, and elucidate theorigin of exotic properties by means of the positron diffraction technique and ultra-slow muon µSR in
combined with other ordinary analytical techniques. Whereas the former allows for surface-sensitive
structural analysis, the latter, which is being developed at J-PARC, will enable us to conduct muon spinrotation/relaxation analysis in a depth-resolved manner. We aim to elucidate depth dependence of the- 154 -

JAEA-Evaluation 2018-003

magnetism and superconductivity of superlattices and atomic sheets. We will also perform conventionalµSR experiments to clarify superconductivity with time reversal symmetry broken.
By inelastic neutron scattering, anti-ferromagnetic (AF) spin fluctuation will be searched inseemingly normal superconductors in order to discover the AF spin fluctuation even in the
superconductors without spin resonance modes. The materials will be selected based on DMFT
calculation (G. Kotliar). As external elastic field effect, nematic metal-insulator transition will besearched in 2-dimentional Mott transition system Ba(Co,Ni)S2 and acoustic spin pumping effect will be
studied on YIG using ultrasound by inelastic neutron scattering. Momentum locking in a Dirac magnon
will be searched in 2-dimentional antiferromagnet MnTiO3. Acoustic spin pumping has been studied byinelastic neutron scattering under ultrasound irradiation. The resonance condition at the magnon polaronenergy will be studied this year.
3) Investigation of novel function and application of graphene
Intrinsic graphene is a mechanically strong and impermeable material as well as fascinating electric
properties, which finds many applications. We will synthesize a large-scale graphene sheet aiming atelectric device application and nano-structured graphene for electrochemical and hydrogen storage
applications.
Firstly, we will fabricate a graphene membrane with a hydron-selective channel, which will beachieved by producing precisely size- and density-controlled defects in a graphene sheet with a lowenergy ion bombardment technique. Electrochemical and gas analyses will be performed to characterize
the correlation between hydron permeability and the defect size and density. Using the newly createdgraphene membrane, prototype devices to selectively store hydrogen isotope will be produced, whichmight be used for enrichment of tritium water at Fukushima dai-ichi. Secondly, we will try to achievestorage of high pressure gases at the interface between graphene and substrates. Particularly, highpressure hydrogen intercalated between graphene and substrates is expected for the high-density energy
storage. In order to develop an effective membrane to trap hydrogen, understanding of the intercalation
mechanism is necessary. We will in-situ observe the intercalation of hydrogen through graphene on Cu,
Au, and SiC substrates by our original technique of radiation-mode optical microscopy. The structure ofintercalated hydrogen will be investigated by neutron, positron, and muon beam techniques.
5. Uniqueness, advantage, and strategy for international COE
A strong point of this group is that we have unique experimental techniques to investigate
nanoscale materials; positron diffraction, neutron scattering, radiation-mode optical microscopy, andmuon spin rotation/relaxation. We will utilize positron diffraction to analyze the topmost surface
structure of atomic sheets, which is essential to clarify the origin of exotic properties of these materials.
The SR will be used for the study of hydrogen effect on functional oxides. As few experimental
techniques are able to probe the electronic state of hydrogen in materials, combined with thephotoemission technique that examines the electronic occupied states of substrates, the SR study
allows for detailed analysis of hydrogen in metal oxides. With the ultra-slow muon, furthermore, depth-- 155 -

JAEA-Evaluation 2018-003

resolved SR will be performed for nanoscale materials, which is clearly a new challenge in this field.
For the elucidation of the mechanism of the graphene growth and hydrogen intercalation, which is yet
to be elucidated despite extensive studies in the last decade, in-situ observation with radiation-mode
optical microscopy will be applied. In contrast to the ex-situ observation adopted in most previous
studies, our in-situ approach will enable us to get deeper insight into the physics and chemistry ofnanoscale materials.
6.

Impacts to basic science and human society
Our unique experimental techniques can clarify the underlying mechanism of the exotic propertiesof nanoscale materials investigated in this group. For example, the reason why the atomic sheet
materials reveal fascinating properties such as high-temperature superconductivity will be clarified interms of the knowledge of the atomic configuration of the materials, which will promote deeper
understanding in exotic properties of nanoscale materials. Nanoscale materials are environmentallyfriendly contributing to sustainable development goals, because they will help to develop nextgeneration devices, which are extremely small, high-speed, and energy-conserving. In-depth
understanding of the behavior of hydrogen in functional materials is vitally important to further build
up hydrogen-related technologies for the coming hydrogen society. We shed light on this issue with theunique probe, muon, and contribute to the development of hydrogen-related technologies. These
unique knowledges are definitely required to understand basic properties of materials and will give
impacts to basic science.
7. Summary
In the last three years, our group has studied the electronic state of hydrogen in metal oxides,
superconductivity and magnetism in materials with broken symmetry, and two-dimensional materials
including graphene. We are convinced that nanoscale materials with broken symmetry often reveal
exotic properties. As our group consists of researchers with both physics and chemistry backgrounds,
we will explore novel physical and chemical properties revealed in nanoscale materials by synthesizing
new nanoscale materials and taking advantage of our unique experimental techniques.
8. Publication list
Peer-Reviewed Papers
2015(1) Prospects of Spin Catalysis on Spin-Polarized Graphene Heterostructures,
P. V. Avramov, P. B. Sorokin, A. A. Kuzubov, S. Sakai, S. Entani, H. Naramoto,
Aust. J. Chem. 69, 753 (2015).
(2) Nondestructive Elemental Depth-Profiling Analysis by Muonic X-ray Measurement,
K. Ninomiya, M. K. Kubo, T. Nagatomo, W. Higemoto, T. U. Ito, N. Kawamura, P. Strasser, K.
Shimomura, Y. Miyake, T. Suzuki, Y. Kobayashi, S. Sakamoto, A. Shinohara, T. Saito,- 156 -

JAEA-Evaluation 2018-003

Anal. Chem. 87, 4597 (2015).
(3) Spin pumping blocked by single-layer graphene,
S. Haku, T. Tashiro, H. Nakayama, J. Ieda, S. Entani, S. Sakai, K. Ando,Appl. Phys. Exp. 8, 073009 (2015).
(4) Magnetotransport properties of a few-layer graphene-ferromagnetic metal junctions in vertical spin
valve devices,
S. Entani, H. Naramoto, S. Sakai,
J. Appl. Phys. 117, 17A334 (2015).
(5)

Perturbationonhyperfine-enhanced

Pr

141

nuclearspin

dynamics

associatedwithantiferroquadrupolar order in PrV2Al20,
T. U. Ito, W. Higemoto, A. Sakai, M. Tsujimoto, S. Nakatsuji,
Phys. Rev. B 92, 125151 (2015).
(6) Synthesis of silicon carbide nanotube heterostructure by crystallinity change using ion irradiation
technique,T. Taguchi, S. Yamamoto, K. Kodama, H. Asaoka,
Carbon 95, 279 (2015).
(7) Measurement of transient photo-induced changes in thin films at J-PARC-time-resolved neutronreflectivity measurement of silver photo-diffusion into Ge-chalcogenide films,
Y. Sakaguchi, H. Asaoka, Y. Uozumi, Y. Kawakita, T. Ito, M. Kubota, D. Yamazaki, K. Soyama, M.
Ailavajhala, K. Wolf, M. Mitkova, M. W. A. Skoda,
J. Phys. Soc. Jpn. 8, 031023 (2015).
(8) Surface stress measurement of Si(111) 7x7 reconstruction by comparison with hydrogen-terminated1x1 surface,
H. Asaoka, Y. Uozumi,
Thin Solid Films 591, 200 (2015).
(9) Online Monitoring of Negative Muon Beam Profiles at J-PARC MUSE using a Gated Image
Intensifier,
T. U. Ito, W. Higemoto, K. Ninomiya, M. K. Kubo, N. Kawamura, K. Shimomura,
JPS Conf. Proc. 8, 036014 (2015).
(10) Tuning of Ultra-slow Muon Transport System,
T. Adachi, Y. Ikedo, K. Nishiyama, A. Yabuuchi, T. Nagatomo, P. Strasser, T. U. Ito, W. Higemoto,K. M. Kojima, S. Makimura, J. Nakamura, K. Shimomura, N. Kawamura, Y. Kobayashi, R. Kadono,
Y. Miyake, E. Torikai,
JPS Conf. Proc. 8, 036017 (2015).
(11) The Development of a Non-Destructive Analysis System with Negative Muon Beam for Industrial
Devices at J-PARC MUSE,
M. Tampo, K. Hamada, N. Kawamura, M. Inagaki, T. U. Ito, K. M. Kojima, K. M. Kubo, K.
Ninomiya, P. Strasser, G. Yoshida, Y. Miyake,- 157 -

JAEA-Evaluation 2018-003

JPS Conf. Proc. 8, 036016 (2015).
(12) Muonic Atom Formation by Muon Transfer Process in C6H6 or C6H12 and CCl4 Mixtures,
M. Inagaki, K. Ninomiya, K. Fujihara, G. Yoshida, Y. Kasamatsu, M. K. Kubo, W. Higemoto, N.
Kawamura, T. Nagatomo, Y. Miyake, T. Miura, A. Shinohara,
JPS Conf. Proc. 8, 033004 (2015).
(13) Elemental Analysis of Bronze Artifacts by Muonic X-ray Spectroscopy,
K. Ninomiya, M. K. Kubo, P. Strasser, T. Nagatomo, Y. Kobayashi, K. Ishida, W. Higemoto, N.
Kawamura, K. Shimomura, Y. Miyake, T. Suzuki, A. Shinohara, T. Saito,
JPS Conf. Proc. 8, 033005 (2015).
(14) Hydration Effect on Electron Transfer in Cytochrome c Monitored by μSR,
Amba D. Pant, Y. Sugawara, I. Yanagihara, G. P. Khanal, I. Shiraki, W. Higemoto, K. Shimomura,
K. Ishida, F. L. Pratt, E. Torikai, K. Nagamine,
JPS Conf. Proc. 8, 033007 (2015).
(15) Dynamics of silver photo-diffusion into Ge-chalcogenide films: time-resolved neutronreflectometry,
Y. Sakaguchi, H. Asaoka, Y. Uozumi, Y. Kawakita, T. Ito, M. Kubota, D. Yamazaki, K. Soyama, M.
Ailavajhala, M. R. Latif, K. Wolf, M. Mitkova, M. W. A. Skoda,
J. Phys.: Conf. Ser. 619, 012046 (2015).
(16) Local Lattice Distortion Caused by Short-range Charge Ordering in Transition Metal Oxides,
K. Kodama,N. Igawa, S. Shamoto, K. Ikeda, H. Ohshita, N. Kaneko, T. Otomo, K. Suzuya, A.
Hoshikawa, T. Ishigaki,
JPS Conf. Proc. 8, 034002 (2015).
2016(17) Asymmetric structure of germanene on an Al(111) surface studied by total-reflection high-energy
positron diffraction,
Y. Fukaya, I. Matsuda, B. Feng, I. Mochizuki, T. Hyodo, S. Shamoto,
2D Mater. 3, 035019 (2016).
(18) Electronic Structure of Hydrogen Donors in Semiconductors and Insulators Probed by Muon Spin
Rotation,
K. Shimomura, T. U. Ito,J. Phys. Soc. Jpn. 85, 091013 (2016). [Review Paper](19) Volume-wise destruction of the antiferromagnetic Mott insulating state through quantum tuning,
B. A. Frandsen, L. Liu, S. C. Cheung, Z. Guguchia, R. Khasanov, E. Morenzoni, T. J. S. Munsie, A.
M. Hallas, M. N. Wilson, Y. Cai, G. M. Luke, B. Chen, W. Li, C. Jin, C. Ding, S. Guo, F. Ning, T. U.
Ito, W. Higemoto, S. J. L. Billinge, S. Sakamoto, A. Fujimori, T. Murakami, H. Kageyama, J. Antonio
Alonso, G. Kotliar, M. Imada, Y. J. Uemura,Nat. Commun. 7, 12519 (2016).
(20) New muonium HFS measurements at J-PARC/MUSE,- 158 -

JAEA-Evaluation 2018-003

P. Strasser, M. Aoki, Y. Fukao, Y. Higashi, T. Higuchi, H. Iinuma, Y. Ikedo, K. Ishida, T. U. Ito, M.
Iwasaki, R. Kadono, O. Kamigaito, S. Kanda, D. Kawall, N. Kawamura, A. Koda, K. M. Kojima, K.
Kubo, Y. Matsuda, Y. Matsudate, T. Mibe, Y. Miyake, T. Mizutani, K. Nagamine, S. Nishimura, K.
Nishiyama, T. Ogitsu, R. Okubo, N. Saito, K. Sasaki, S. Seo, K. Shimomura, M. Sugano, M. Tajima,
K. S. Tanaka, T. Tanaka, D. Tomono, H. A. Torii, E. Torikai, A. Toyoda, K. Ueno, Y. Ueno, D. Yagi,
A. Yamamoto, M. Yoshida,
Hyperfine Interact. 237, 124 (2016).
(21) Processes of silver photo-diffusion into Ge-chalcogenide probed by neutron reflectivity technique,Y. Sakaguchi, H. Asaoka, Y. Uozumi, Y. Kawakita, T. Ito, M. Kubota, D. Yamazaki, K. Soyama, G.
Sheoran, M. Mitkova,
Phys. Status Solidi A 213, 1894 (2016).
(22) Silver photo-diffusion and photo-induced macroscopic surface deformation of Ge33S67/Ag/Si
substrate,
Y. Sakaguchi, H. Asaoka, Y. Uozumi, K. Kondo, D. Yamazaki, K. Soyama, M. Ailavajhala, M.
Mitkova,
J. Appl. Phys. 120, 055103 (2016).
(23) Resonant inelastic x-ray scattering study of entangled spin-orbital excitations in superconducting
PrFeAsO0.7,
T. Nomura, Y. Harada, H. Niwa, K. Ishii, M. Ishikado, S. Shamoto, I. Jarrige,
Phys. Rev. B 94, 035134 (2016).
(24) Local Structural Analysis of Half-Metallic Ferromagnet CrO2,
K. Kodama, K. Ikeda, M. Isobe, H. Takeda, M. Itoh, Y. Ueda, S. Shamoto, T. Otomo,
J. Phys. Soc. Jpn. 85, 094709 (2016).
(25) Spin and Time Reversal Symmetries of Superconducting Electron Pairs Probed by the Muon Spin
Rotation and Relaxation Technique,W. Higemoto, Y. Aoki, D. E. MacLaughlin,
J. Phys. Soc. Jpn. 85, 091007 (2016). [Review Paper](26) Spacing between graphene and metal substrates studied with total-reflection high-energy positron
diffraction,
Y. Fukaya, S. Entani, S. Sakai, I. Mochizuki, K. Wada, T. Hyodo, S. Shamoto,
Carbon 103, 1 (2016).
(27) Structure determination of the rutile-TiO2(110)-(1×2) surface using total-reflection high-energy
positron diffraction (TRHEPD),
I. Mochizuki, H. Ariga, Y. Fukaya, K. Wada, M. Maekawa, A. Kawasuso, T. Shidara, K. Asakura, T.
Hyodo,
Phys. Chem. Chem. Phys. 18, 7085 (2016).
2017(28) Uniaxial pressure effect on the magnetic ordered moment and transition temperatures in BaFe 2-- 159 -

JAEA-Evaluation 2018-003

xTxAs2(T=Co,Ni),

D. W. Tam, U. Song, H. Man, S. C. Cheung, Z. Yin, X. Lu, W. Wang, B. A. Frandsen, L. Liu, Z.
Gong, T. U. Ito, Y. Cai, M. N. Wilson, S. Guo, K. Koshiishi, W. Tian, B. Hitti, A. Ivanov, Y. Zhao, J.
W. Lynn, G. M. Luke, T. Berlijn, T. A. Maier, Y. J. Uemura, P. Dai,
Phys. Rev. B 95, 060505(R) (2017).
(29) Excited configurations of hydrogen in the BaTiO3-xHx perovskite lattice associated with hydrogenexchange and transport,
T. U. Ito, A. Koda, K. Shimomura, W. Higemoto, T. Matsuzaki, Y. Kobayashi, H. Kageyama,
Phys. Rev. B 95, 020301(R) (2017).
(30) Frustrated magnetism in the Heisenberg pyrochlore antiferromagnets AYb2X4(A=Cd, Mg; X=S,Se),
T. Higo, K. Iritani, M. Halim, W. Higemoto, T. U. Ito, K. Kuga, K. Kimura, S. Nakatsuji,
Phys. Rev. B 95, 174443 (2017).
(31) Materials and Life Science Experimental Facility at the Japan Proton Accelerator ResearchComplex IV: The Muon Facility,
W. Higemoto, R. Kadono, N. Kawamura, A. Koda, K. M. Kojima, S. Makimura, S. Matoba, Y.
Miyake, K. Shimomura, P. Strasser,
Quantum Beam Sci. 1(1), 11 (2017). [Review Paper](32) Out-of-Plane Strain Induced in a Moiré Superstructure of Monolayer MoS2 and MoSe2 on Au(111),
S. Yasuda, R. Takahashi, R. Osaka, R. Kumagai, Y. Miyata, S. Okada, Y. Hayamizu, K. Murakoshi,
Small 13, 1700748 (2017).
(33) Alternative Equation on Magnetic Pair Distribution Function for Quantitative Analysis,
K. Kodama, K. Ikeda, S. Shamoto, T. Otomo,
J. Phys. Soc. Jpn. 86, 124708 (2017).
(34) Research progress at the Slow Positron Facility in the Institute of Materials Structure Science, KEK,
T. Hyodo, K. Wada, I. Mochizuki, M. Kimura, N. Toge, T. Shidara, Y. Fukaya, M. Maekawa, A.
Kawasuso, S. Iida, K. Michishio, Y. Nagashima,
J. Phys.: Conf. Ser. 791, 012003 (2017).
(35) New precise measurement of muonium hyperfine structure interval at J-PARC,
Y. Ueno, M. Aoki, Y. Fukao, Y. Higashi, T. Higuchi, H. Iinuma, Y. Ikedo, K. Ishida, T. U. Ito, M.
Iwasaki, R. Kadono, O. Kamigaito, S. Kanda, D. Kawall, N. Kawamura, A. Koda, K. M. Kojima, M.
K. Kubo, Y. Matsuda, T. Mibe, Y. Miyake, T. Mizutani, K. Nagamine, K. Nishiyama, T. Ogitsu, R.
Okubo, N. Saito, K. Sasaki, K. Shimomura, P. Strasser, M. Sugano, M. Tajima, K. S. Tanaka, D.
Tomono, H. A. Torii, E. Torikai, A. Toyoda, K. Ueno, A. Yamamoto, M. Yoshida,
Hyperfine Interact. 238, 14 (2017).
2018(38) Nuclear Magnetic Field in Solids Detected with Negative-Muon Spin Rotation and Relaxation,
J. Sugiyama, I. Umegaki, H. Nozaki, W. Higemoto, K. Hamada, S. Takeshita, A. Koda, K.

- 160 -

JAEA-Evaluation 2018-003

Shimomura, K. Ninomiya, M. K. Kubo,
Phys. Rev. Lett. 121, 087202 (2018). [Featured in Physics] [Editors’ Suggestion](39) Temperature dependence of magnetic excitations in the frustrated antiferromagnetic spinel
ZnMn2O4,
H. Chang, I.-Y. Hwang, J.-H. Chung, J. Ross Stewart, W.Higemoto, Y. Miyake,Phys. Rev. B 97, 014406 (2018).
(40) Magnetism of A-site ordered perovskites CaCu3Cr4O12 and LaCu3Cr4O12,
J. Sugiyama, H. Nozaki, I. Umegaki, K. Miwa, W. Higemoto, E. J. Ansaldo, J. H. Brewer, H. Sakurai,
M. Isobe, H. Takagi, M. Mansson,
Phys. Rev. B 97, 024416 (2018).
(41) Uniform Si Nano-dot Fabrication Using Reconstructed Structure of Si(110),
M. Yano, Y. Uozumi, S. Yasuda, H. Asaoka,
Jpn. J. Appl. Phys. 57, 06HD04 (2018).
(42) A-site Ordered Chromium Perovskites, ACu3Cr4O12 with A = Trivalent Ions,
J. Sugiyama, H. Nozaki, I. Umegaki, W. Higemoto, M. Isobe, H. Takagi, H. Sakurai, E. J. Ansaldo,
J. H. Brewer, Y. Sassa, O. K. Forslund, M. Månsson,
JPS Conf. Proc. 21, 011009 (2018).
(43) Muon Spin Relaxation of an Al–3.4%Zn–1.9%Mg Alloy,
K. Nishimura, K. Matsuda, N. Nunomura, T. Namiki, S. Lee, D. Hatakeyama, W. Higemoto, Y.
Miyake, T. Matsuzaki, G. Itoh, K. Ihara, H. Toda, M. Yamaguchi,
JPS Conf. Proc. 21, 011030 (2018).
(44) µSR Study on Hydrogen Behavior in Palladium,
M. Mihara, H. Araki, Ma. Mizuno, K. Shimomura, W. Higemoto, K. Sugita, K. Atsushi, M. Kondo,
Y. Tanaka, T. Matsuzaki, R. Kadono, W. Sato, T. Nakano, T. Fukuda,
JPS Conf. Proc. 21, 011031 (2018).
(45) Theoretical Calculations of Charge States and Stopping Sites of Muons in Glycine and Triglycine
Amba Datt Pant, Y. Sugawara, H. Nakanishi, E. Torikai, W. Higemoto, K. Shimomura, K.Nagamine,
JPS Conf. Proc. 21, 011038 (2018).
(46) J-PARC Muon Facility, MUSE,
Y. Miyake, K. Shimomura, N. Kawamura, A. Koda, P. Strasser, K. M. Kojima, H. Fujimori, S.
Makimura, Y. Ikedo, Y. Kobayashi, J. Nakamura, Y. Oishi, S. Takeshita, T. Adachi, Amba Datt Pant,
H. Okabe, S. Matoba, M. Tampo, M. Hiraishi, K. Hamada, S. Doiuchi, W. Higemoto, T. U. Ito, R.
Kadono,JPS Conf. Proc. 21, 011054 (2018).
(47) Muon Beamline Commissioning and Feasibility Study for μSR at a New DC Muon Beamline,
MuSIC-RCNP, Osaka University,
D. Tomono, M. Fukuda, K. Hatanaka, W. Higemoto, Y. Kawashima, K. M. Kojima, Y. Kuno, Y.
Matsuda, T. Matsuzaki, Y. Miyake, K. Miyamoto, Y. Morita, T. Motoishi, Y. Nakazawa, K. Ninomiya,- 161 -

JAEA-Evaluation 2018-003

R. Nishikawa, S. Ohta, A. Sato, K. Shimomura, K. Takahisa, Y. Weichao, M. L. Wong,
JPS Conf. Proc. 21, 011057 (2018).
(48) Transportation of Ultra Slow Muon on U-line, MLF, J-PARC,
Amba Datt Pant, T. Adachi, Y. Ikedo, Y. Oishi, J. Nakamura, P. Strasser, K. Kojima, S. Makimura,N. Kawamura, A. Koda, T. Ito, W. Higemoto, K. Shimomura, R. Kadono, Y. Miyake, E. Torikai,
JPS Conf. Proc. 21, 011060 (2018).
(49) Status of the New Surface Muon Beamline at J-PARC MUSE,
P. Strasser, A. Koda, K. M. Kojima, T. U. Ito, H. Fujimori, Y. Irie, M. Aoki, Y. Nakatsugawa, W.
Higemoto, M. Hiraishi, H. Li, H. Okabe, S. Takeshita, K. Shimomura, N. Kawamura, R. Kadono, Y.
Miyake,JPS Conf. Proc. 21, 011061 (2018).
(50) Neutron scattering study of yttrium iron garnet,
S. Shamoto, T. U. Ito, H. Onishi, H. Yamauchi, Y. Inamura, M. Matsuura, M. Akatsu, K. Kodama, A.
Nakao, T. Moyoshi, K. Munakata, T. Ohhara, M. Nakamura, S. Ohira-Kawamura, Y. Nemoto, K.
Shibata,Phys. Rev. B 97, 054429 (2018).
Invited Talks at International Conferences
2016(1) Total-reflection high-energy positron diffraction (TRHEPD) for structure determination of topmost
surface layer,
Y. Fukaya,
17th International Conference on Positron Annihilation (ICPA-17), Wuhan, China, Sep. 20-25, 2016.
(2) Interface Properties of Graphene-based Magnetic Junctions for Spintronic Applications,S. Sakai,EMN Phuket Meeting, Phuket, Thailand, May 4-7, 2016.
(3) Nematic effects on spin excitation of β-FeSe superconductor,
S. Shamoto,
EMN Qingdao Meeting, Qingdao, China, Jun. 14-17, 2016.
(4) Hidden lattice distortions in crystalline materials,
S. Shamoto,
Hidden Orders in a Complex World: Past, Present and Future, Oak Ridge, USA, Oct. 1-3, 2015.
(5) Hidden lattice structures in some functional materials,
S. Shamoto,
WCSM-2016 Focus 202: Smart Metals, Singapore, Mar. 3-7, 2016.
(6) Graphene-based hybrid structures for spintronic applications,S. Sakai,
2nd International Symposium on Nanoparticles/Nanomaterials and Applications, Lisbon, Portugal,- 162 -

JAEA-Evaluation 2018-003

Jan. 18-21, 2016.
(7) Graphene and molecular thin films,
S. Sakai,
JST UK-Japan Workshop on Advanced Materials, York, England, Feb. 24, 2016.
(8) Spin and orbital fluctuations and their electronic transitions,S. Shamoto,Physics department colloquium in National Cheng Kung University, Mar. 11, 2016.
2017(9) Surface structure analysis by positron diffraction,
Y. Fukaya,
The 8th International Symposium on Surface Science -Toward Clean & Green Innovation Driven by
Surface Science- (ISSS-8), Tsukuba, Oct. 22-26, 2017.
(10) Surface structure analysis by total-reflection high-energy positron diffraction,
Y. Fukaya,
The 3rd China-Japan Joint Workshop on Positron Science (JWPS2017), Hefei, China, Jun. 9-11,
2017.
(11) FeSe study from bulk crystal to single-layer,
S. Shamoto, Y. Fukaya,
EMN2017 Bali, Iron and Iridium based Superconductivity, Jun. 21-23, 2017.
(12) Functional disorders in crystalline materials revealed by PDF analysis,
S. Shamoto,2nd International Symposium of Quantum Beam Science at Ibaraki University, Mito, Japan, Dec. 810, 2017.
Books and Scientific Articles(1) Chapter 4: Diffraction: Determination of atomic structure,
Y. Fukaya,
Monatomic Two-Dimensional Layers: Properties, Fabrication and Industrial Applications (Elsevier,2018).
Patents
None
Awards(1) ASRC DIRECTOR GENERAL’S AWARD 2016, The significant contributions to the structure
determination of germanene,
Y. Fukaya (2017).
(2) 平成 29 年度理事長表彰【研究開発功績賞】「新材料ゲルマネンの原子配置の解明」,- 163 -

JAEA-Evaluation 2018-003

深谷有喜（平成 29 年）,
JAEA DIRECTOR GENERAL’S AWARD FY29, The significant contributions to the structure
determination of germanene,
Y. Fukaya (2017).
(3) 第 28 回日本化学会関東支部茨城地区研究交流会奨励賞(2017), 顕微ラマン分光によるγ線
暴露 YSZ の結晶構造評価,
中島浩司，内堀揚介，保田諭，朝岡秀人，大久保成彰 (2017),
Travel Award, The 8th International Symposium on Surface Science 2017, Morphology andelectronic state evolution, of SiO2 reduction process on Si(110),
M. Yano, Y. Uozumi, S. Yasuda, H. Asaoka (2017).
(4) 第 28 回日本化学会関東支部茨城地区研究交流会奨励賞(2017), 顕微ラマン分光によるγ線
暴露 YSZ の結晶構造評価,
中島浩司，内堀揚介，保田諭，朝岡秀人，大久保成彰(2017),
Encouragement Award, The 28th Chemical Society of Japan, Kanto branch, Ibaraki area annual
meeting (2017), The structure determination of γ -ray exposed YSZ by Microscopic Raman
Spectroscopy,
K. Nakajima, Y. Uchibori, S. Yasuda, H. Asaoka, S. Okubo (2017).
Press Release(1) Interface structure between graphene and metal substrate revealed by total-reflection high-energy
positron diffraction (TRHEPD),
Y. Fukaya (Mar. 2016).
(2) Symmetry breaking in atomic coordinates of germanene,
Y. Fukaya (Sep. 2016).
(3) Nuclear Magnetic Field in Solids Detected with Negative-Muon Spin Rotation and Relaxation,
J. Sugiyama, I. Umegaki, H. Nozaki, W. Higemoto, et al. (Aug. 2018).

- 164 -

JAEA-Evaluation 2018-003

Excited configurations of hydrogen in a perovskite oxyhydride
associated with hydrogen exchange and transport

BaTiO3

H-

Y. Kobayashi et al.,Nat. Mater. 11, 507 (2012).

BaTiO3-xHx

H/D exchange above 400ºC
between solid and gas phases

Potentially suitable for application in
mixed electron/H ion conductors and H membranes
Ferroelectric
Metal
Experimental insights into the hydrogen exchange mechanism are still quite limited.

Forced implantation of muons: forming and probing excited configurations of hydrogen
Radioactive pseudoisotope of hydrogen

Observed metastable configurationsa) Oscillating component

T. U. Ito et al.,Phys. Rev. B 95, 020301(R).

(hydridic)b) Gaussian component(protonic)

Charge statetransition

Hydrogen exchange center

Rapid interstitial diffusion

These metastable configurations are consistent with a theoretical proposal by Zhang et al.,suggesting that a new type of hydrogen kinetics can take place in perovskite oxyhydrides.

Graphene monolayer (Y. Fukaya, S. Entani, S. Sakai, S. Shamoto)Interface structure between graphene and substrate

Graphene-substrate spacing is crucial to elucidate theorigin of graphene property

Total Reflection of HighEnergy Positron
Diffraction

TRHEPD intensity (arb. units)

We determined graphene-substrate spacing using positron diffraction technique
: exp
: cal

0

1

2

3

4

Graphene/Co

2.06 Å

Graphene/Cu

3.34 Å

5

6

Co

Cu

7

Glancing angle (deg)We found that graphene-substrate spacing is shifted dependingon the substrate materials• Deeper understanding of graphene properties• Promoting development of future nano-devices
Yuki Fukaya, Shiro Entani, Seiji Sakai, Izumi Mochizuki, Ken
Wada, Toshio Hyodo, and Shin-ichi Shamoto, Carbon 103(2016) 1-4.

- 165 -

JAEA-Evaluation 2018-003

Controlling on Electronic Structure of Monolayer MoS2 & MoSe2
by Strain Induction
MoS2 & MoSe2

2D material, direct semiconductor (~2eV)
Issue : further modulation of electronic structure for various applications

Strain induction in MoS2 & MoSe2 by a contact with Au(111)䢷VBM

dI/dV / a.u.

䢶
䢵

Eg
CBM
~1.5eV䢴

Splitting by strain
generation䢳䢯䢳䢰䢲

Vs = -0.2 V, It = 3.5 nA

䢲䢰䢲

䢳䢰䢲

Sample bias / V

Generation of periodic out-of-plain strain in MoS2 and MoSe2
by Moiré superstructure formation
Modulation effect of electronic structure
S. Yasuda, et al., Small 13, (2017) 1700748.

New method for control of electronic structure
Contribution of design and development of novel MoS2- and MoSe2-based devices(Potential use for electronic device, electrocatalyst & photocatalyst)- 166 -

JAEA-Evaluation 2018-003

Research Group for Hadron Nuclear Physics
1. Members
Leader: Makoto Oka (~Mar. 2018), Hirokazu Tamura (Apr. 2018~)
Manager:

Hiroyuki Sako

Scientific Staff:

Toshiki Maruyama, Shoichi Hasegawa, Kiyoshi Tanida, Susumu Sato, Yudai

Ichikawa (Apr. 2018~), Megumi Naruki (2017~)
Fixed-term Research Fellow (supported by JSPS Excellent Young Researcher (Takuetsu)
program): 㻌 T. Hashimoto (Nov. 2017~), P. Gubler (Dec. 2017~)
Post-Doctoral Fellow:

Kenji Hosomi (Apr. 2015~Mar. 2016), Hitoshi Sugimura (Apr. 2015~Mar.

2017), Yudai Ichikawa (Apr. 2015~Mar. 2018), Takayasu Sekihara (Apr. 2016~), Junya Yoshida (Apr.
2017~)
JSPS Research Fellowship for Young Scientists (PD): 㻌 T. Hashimoto (Apr. 2017 ~ Oct. 2017)
Student: [2015] H. Ekawa (D3), S. Hayakawa (D3), S. Kinbara (D1), Y. Nakada (D1)[2016] H. Ekawa (D4), S. Hayakawa (D4), S. Kinbara (D2), Y. Nakada (D2)[2017] H. Ekawa (D5), S. Hayakawa (D5), S. Ashikaga (M2), Y. Nakada (D3)[2018] H. Ekawa (D6), S. Hayakawa (D6), T. Ezoe (D3), T. Nanamura (D2), S. Ashikaga (D1),
K. Suzuki (M2), Y. Hino (D1), S. Iwasaki (D1)
2. Objectives
The research objectives of the Hadron Nuclear Physics Group are(1) experimental studies of exotic hadrons and nuclei with strange and charm quarks mainly at J-PARC,
and hot and dense quark/hadronic matter at J-PARC and BNL-RHIC, and(2) theoretical studies of exotic hadrons, nuclear matter, and neutron stars at low and high densities,
including strangeness and charm quarks.
Through these studies, we investigate many-body systems of quarks and hadrons in relation with
Quantum Chromo Dynamics (QCD).
3. Progress and research highlights
3.1. Gamma-ray spectroscopy of  hypernuclei (E13)3.1.1. Charge symmetry breaking in 𝚲𝚲𝟒𝟒𝐇𝐇𝐞𝐞

4ΛHe in April 2015. The excitationenergy of this state was found to differ from that of the mirror nucleus, Λ4H, by 320 keV, indicating

We measured  rays emitted from the first excited state oflarge charge symmetry breaking.

3.1.2. First study of sd-shell hypernucleus, 𝟏𝟏𝟏𝟏𝚲𝚲𝐅𝐅

We investigated a “heavy” hypernucleus in the sd-shell region, 19ΛF , and observed four transitions. Then we reconstructed the level scheme of 19ΛF and found that it is well understood by
our knowledge of the N interaction.

- 167 -

JAEA-Evaluation 2018-003

3.2. Study of double hypernuclei using the hybrid-emulsion method (E07)
We performed the J-PARC E07 experiment to investigate double hypernuclei in the 𝐾𝐾 − 𝑝𝑝 →𝐾𝐾 + Ξ − reaction using the hybrid-emulsion method, where we associate tracks from Silicon Strip

Detectors with trajectories in the emulsion. We irradiated 118 emulsion modules with a 𝐾𝐾 − beamin 2016 and 2017, which are expected to include 104 stopped Ξ − events. We have already foundseveral candidates of double-Lambda hypernuclei, and a candidate of twin Lambda hypernuclei.
Further analysis is going on.

H-dibaryon search experiment (E42), N* and * spectroscopy experiment (E45), and3.3.

development of Hyperon Spectrometer3.3.1. H-dibaryon search (E42)
E42 is the experiment to search for six quark state hadron, H-dibaryon. In recent Lattice QCD
calculations, its existence as a resonance peak near the Ξ − 𝑝𝑝 threshold is predicted. The experimentsuccessfully passed Stage-2 review (readiness of the experiment) in J-PARC PAC meeting in Jan.
2018.

3.3.2. Baryon spectroscopy with 𝝅𝝅𝝅𝝅 → 𝝅𝝅𝝅𝝅𝝅𝝅 reactions (E45)

E45 is the experiment to study 𝑁𝑁 ∗ and Δ∗ resonances below 2GeV/c2 in 𝜋𝜋𝜋𝜋 →𝜋𝜋𝜋𝜋𝜋𝜋reactions. We completed construction of most of detectors for E45, including a liquid hydrogentarget system and the TPC target holder. The experiment was approved for the Stage-2 status(experimental feasibility) in J-PARC PAC meeting in July 2018. We performed excitation tests of thesuperconducting Helmholtz dipole magnet and achieved stable operations at the magnetic field of
1.2 T which is enough for E42 and E45.
As for a common spectrometer (Hyperon Spectrometer) between E42 and E45, we performed abeam test of HypTPC at HIMAC with high rate proton beams. The TPC detected particle trajectories
stably up to 106 Hz, which corresponds to the beam rates for E42 and E45.
Search for a new narrow resonance (1665) (E72)

3.4.

We proposed a new experiment (E72) to search for a new narrow (1665) resonance, whose
existence was suggested at Belle and Crystal Ball experiments. E72 uses Hyperon Spectrometer at
the K1.8BR beamline while E42 and E45 uses the K1.8 beamline. The resonance could be an exotic
state since it does not exist in the quark models. The experiment was approved for Stage-1 status(physics) at the J-PARC PAC meeting in Jan. 2018.
3.5. hypernuclei and Kaonic nuclei (E05)
We carried out the J-PARC E05 experiment to search for the Ξ-hypernuclei by using
12

C(𝐾𝐾 − , 𝐾𝐾 + ) reaction at 1.8 GeV/c in November 2015. In the measured missing-mass spectrum, weobserved the significant excess, which can be interpreted as a signal of Ξ-hypernuclei, around thebound region. We also measured 12C(𝐾𝐾 − , 𝑝𝑝) spectrum during the E05 experiment as a byproduct.

We found that the spectrum was best reproduced with the calculation using the real and the imaginary
̅ -𝐴𝐴 potential of −80 MeV and −40 MeV, respectively. Moreover, we observed thepart of 𝐾𝐾

definitive excess in the deeply bound region where the 𝐾𝐾 − binding energy is more than 100 MeV,
- 168 -

JAEA-Evaluation 2018-003

which can be interpreted as a deeply bound (1405) nucleus.
̅ 𝑵𝑵 interaction and kaonic nuclei (E15/E31/E62)
3.6. 𝑲𝑲

̅ 𝑁𝑁 interaction was performed at the J-PARC
A series of experiments to investigate the 𝐾𝐾

K1.8BR beam line.

3.6.1. K-pp search (E15)At E15, we searched for the minimum kaonic nucleus, 𝐾𝐾 − 𝑝𝑝𝑝𝑝, using 1 GeV/c 𝐾𝐾 − beam on ahelium-3 target. We measured the invariant -mass distribution of Λ𝑝𝑝 pairs in the Λ𝑝𝑝𝑝𝑝 final state,

and found a peak structure, which could be a kaonic nuclear bound state.
3.6.2. Study of 𝚲𝚲𝒑𝒑(𝟏𝟏𝟏𝟏𝟏𝟏𝟏𝟏) via (𝑲𝑲− , 𝒏𝒏) reaction on deuteron (E31)

E31 was performed in Feb. 2018, using a similar setup to E15 except for a deuterium target. We

measured 3 charged modes of the 𝑑𝑑(𝐾𝐾 − , 𝑛𝑛)𝜋𝜋Σ reaction, and the spectra obtained could contributeto understanding the nature of Λ(1405).

3.6.3. X-rays from 𝑲𝑲− - 𝟑𝟑𝐇𝐇𝐇𝐇 and 𝑲𝑲− - 𝟒𝟒𝐇𝐇𝐇𝐇 atoms with TES (E62)

E62 is X-ray spectroscopy of kaonic atoms with extremely high-resolution X-ray detector (TES).

We performed data taking in Jun. 2018 for 𝐾𝐾 − - 3He and 𝐾𝐾 − - 4He atoms. In a preliminary analysis,

we successfully observed very sharp X-ray peaks around 6 keV from the 3d to 2p transitions, withan FWHM energy resolution below 10 eV.

3.7. Progress of J-PARC Heavy-Ion project (J-PARC-HI)
The J-PARC Heavy-Ion project (J-PARC-HI) aims to explore the QCD phase structure at
extremely high baryon density with the world’s most intense heavy-ion beams. In the Master Plan of
the Science Council of Japan in Mar. 2016, R&D for the project has been included together with thehigh-energy heavy-ion experiments at RHIC and LHC proposed by Univ. of Tsukuba. We established
the basic design of the heavy-ion acceleration scheme with a new heavy-ion linac and a heavy-ion
booster ring with existing 3-GeV RCS and 50-GeV MR. A large acceptance spectrometer for hadronand dilepton measurements, and a closed geometry spectrometer for hypernuclear measurements
were designed, and their expected physics performance was evaluated. The white paper of J-PARCHI has been completed in May 2016. We submitted the Letter-Of-Intent of J-PARC-HI to J-PARC
PAC (Program Advisory Committee) in June 2016.
3.8. Experimental research at RHIC and BelleIn PHENIX experiment at RHIC, properties of high-temperature matter (quark-gluon plasma)
are studied, which has a natural connection to studies of high-density matter at J-PARC-HI. In Belleexperiment at KEKB, hadrons with heavy flavor (charm and bottom quarks) can be studied, which
are difficult to measure at J-PARC. However, these research activities are considered to becomplementary studies to J-PARC experiments, and are limited by a few members with their limited
working time.
3.8.1. Left-right asymmetry in forward neutron production at RHIC-PHENIX)
At RHIC, in 𝑝𝑝 + Au collisions with polarized proton beams, we measured the left-rightasymmetry of forward neutrons. We obtained striking results that the asymmetry has the opposite- 169 -

JAEA-Evaluation 2018-003

sign to 𝑝𝑝 + 𝑝𝑝 data. The source of the difference has not been understood.

3.8.2. Double Cabibbo Suppressed Decay at BelleIn Belle at KEKB, we discovered double Cabibbo suppressed decay Λ+c → 𝑝𝑝𝐾𝐾 + 𝜋𝜋 −, which is

the rarest decay channel in Λ+c , and the double Cabibbo suppressed decay was observed for the firsttime in baryon decays. The paper made the cover of Physical Review Letters.

3.9.

Activities of Theoretical Physics InstituteWe established the Theoretical Physics Institute (TPI) as a (virtual) group at ASRC in 2015. It
aims to foster new physics through cross-disciplinary collaborations by the theorists in ASRC, aswell as the collaboration among the theory and the experiment. The TPI activities include a series of
TPI Seminars and Lectures, for which we have invited several guest speakers covering hadron,nuclear, and condensed-matter physics.
In FY2018, TPI conducts a cross-disciplinary Reimei Research Program, “Universal physics inMany-Body Quantum Systems – From Atoms to Quarks –”, with Prof. Hans-Werner Hammer(Darmstadt) as the PI. We plan to have a Reimei workshop in December.
ASRC established the research collaboration agreement (MOC) with the European Center for
Theoretical Studies in Nuclear Physics and Related Areas (ECT*) by the initiative of TPI. We plan
to have a workshop at ECT* in FY2019 (approved by ECT*) as a part of the Reimei Research Projectwith Dr. Hammer as PI.
3.10. Progress in theoretical hadron research
3.10.1. Study of the peak structure in 𝑲𝑲− + 𝟑𝟑𝐇𝐇𝐇𝐇 → 𝚲𝚲 + 𝒑𝒑 + 𝒏𝒏

We have performed a calculation of the 𝐾𝐾 − 3He → Λ𝑝𝑝𝑝𝑝 reaction to investigate the origin of

the peak structure observed in the J-PARC E15 experiment. We take into account a scenario that a

𝐾𝐾 − 𝑝𝑝𝑝𝑝 bound state is generated and decays into Λ𝑝𝑝, and calculate the Λ𝑝𝑝 invariant-mass spectrumof the reaction. The signal in the J-PARC E15 experiment is qualitatively well reproduced by theassumption that a 𝐾𝐾 − 𝑝𝑝𝑝𝑝 bound state is generated in the reaction. This implies an existence of a
𝐾𝐾 − 𝑝𝑝𝑝𝑝 bound state in the J-PARC E15 experiment.

3.10.2. KN interactions in the Skyrme model

We have studied (anti)kaon-nucleon interactions in the Skyrme model, proposing a new

approach for the quantization of the meson-soliton system. We have found that the anti-kaon is boundloosely by the nucleon which is identified as Λ(1405). The method also enables to derive the general

structure of the interactions with taking into account the nucleon structure.
References: Papers (110) and (188) in the peer-reviewed paper list.
3.10.3. Decays of charmed baryons for the study of structure

We have studied decays of charmed baryons Λc(2595) and Λc(2625), and performed detailed
analysis of the Dalitz plot for their three-body decays. We have found that the resulting line shape of
the invariant mass distributions are useful to differentiate the structures of the charmed
baryons. Currently we are studying angular correlations and have found that they are useful for the
study not only of structure but also of reaction mechanisms. Reference: Paper (189) in the peer-- 170 -

JAEA-Evaluation 2018-003

reviewed paper list.
3.10.4. Theoretical studies on exotic hadrons
We performed various theoretical studies for exotic hadrons and nuclei with strangeness andcharm, such as theoretical studies for kaonic nuclei based on the J-PARC E15 experiment, propertiesof vector mesons in nuclear hot matter, and exotic hadrons with charm.
3.10.5. Hyperon mixture and kaon condensation
We have investigated structure and properties of dense matter relevant to compact stars such as
supernovae and neutron stars. At about three times the normal nuclear density, kaon and hyperons
are expected to emerge into nucleon matter. However, the interactions between kaon and hyperons
should affect their appearance and behavior. We have carried out relativistic mean field (RMF) plus
Thomas-Fermi calculation for neutron star matter (neutral matter in beta equilibrium). Though there
is some dependence on the interaction parameters, our result shows that kaon and proton make cluster
while hyperons distribute apart from the kaon cluster in the structured mixed phase.
3.10.6. Exact finite temperature sum rules in the vector channel
The vector spectral function at finite temperature contains rich information about vector mesons
at low temperature and about the quark gluon plasma above the deconfinement temperature. It is
however difficult to compute it directly from QCD. Using the analytic properties of the two-point
function of a vector operator, we have derived several exact sum rules of the vector spectral function,
which can be useful to constrain it in future studies using lattice QCD or effective theories.
3.11. Reimei Research Programs
We conducted Reimei Research Programs “Hadron Physics in Extreme Conditions at J-PARC”
was successfully carried out with Hyun-Chul Kim (Inha Univ., Korea) as PI in 2015, “Advanced
Study of New Exotic Hadron Matter at J-PARC” with Hyun-Chul Kim in 2016, “Collaborative
studies on baryon spectroscopy at J-PARC between theory and experiment” with Ken Hicks (Ohio
Univ., USA) as PI in 2017, and “New Aspects of Hadron Spectroscopy and Exploration of Dense
Nuclear Matter at J-PARC” with Ken Hicks in 2018. We held five Reimei international workshops
on the subjects of heavy quark hadrons, hypernuclear physics, hadrons in medium, exotic hadrons,
hadron spectroscopy, and heavy-ion physics. We made progress in various theoretical andexperimental collaborative researches on hadron physics, including a new experimental proposal at
J-PARC, development of Hyperon Spectrometer, and development of plans for J-PARC-HI.
In FY2018, TPI conducts a cross-disciplinary Reimei Research Program, “Universal physics inMany-Body Quantum Systems – From Atoms to Quarks –”, with Prof. Hans-Werner Hammer(Darmstadt) as the PI. We plan to have a Reimei workshop in December.
3.12.

OthersOur research goals are closely related to hadron physics conducted in J-PARC Hadron

Experimental Facility. To strengthen the research collaboration to J-PARC, group members (Sako,
Hasegawa, Tanida, and Sato) joined Hadron Section of J-PARC Center since April 2018 in limited
effort time (<10%). We contribute to J-PARC operations, while we can access the detailed- 171 -

JAEA-Evaluation 2018-003

information of J-PARC, and join discussions of future plans of J-PARC such as J-PARC-HI.
4.

New （or updated） strategy, research plans, and goals for next 3.5 years

4.1. Experiments using Hyperon SpectrometerIn the rest of the current seven-year plan period, we will proceed with experiments of thestrangeness (S) of -2 hadron physics, which were prepared in the first half of this period. We willcomplete the emulsion analysis of E07 and find many double hypernuclei to understand hyperonnucleus and hyperon-hyperon interactions in S=-2 sector. We have almost completed the Hyperon
Spectrometer. We will complete the remaining detector development such as the TPC hodoscope forthe two-charged particle trigger, and water Cherenkov counter for background proton rejection. In
the rest of the current seven-year plan period, we are in the phase to perform the experiments (E42,
E45, and E72) using the spectrometer. We will perform H-dibaryon search experiment (E42) in 20192021. We may also perform E45 (N* and * spectroscopy) and E72 (new narrow 
resonance search) during this period, depending on the J-PARC schedule.
4.2. X ray measurement from  atom (E03)
We will also perform the E03 experiment (using Kurama Spectrometer in 2019-2020. We will
also perform E57 (X-rays from Kaonic hydrogen and deuterium) at the K1.8BR beamline in 20192020.
4.3.

Progress of J-PARC Heavy-Ion project (J-PARC-HI)
The present J-PARC programs using the hadron beams available at J-PARC have a limitation in

exploring high density matter more than the normal nuclear density. Also, the recent observation ofheavy neutron stars and gravitational waves from a neutron star merger opened a new era to study
dense hadronic matter. In J-PARC-HI, we can directly produce such dense matter and study it. We
will propose the project to the Science Council of Japan in March 2019, hoping that it is listed in the
Master Plan for Large-Scale Scientific Projects. We will continue discussions in Japanese Nuclear
Physics community and J-PARC. We will develop detailed plans towards proposals to J-PARC. For
the construction of a new heavy-ion injector, we have already started discussions towards a new joint
proposal in Nuclear Science Research Institute among members working for J-PARC accelerators,
the Tandem Accelerator, and the Nuclear Transmutation at J-PARC. We will develop the discussions
for the budget request.
4.4.

Experiment at the high-momentum beam line (E16)E16 is an experiment to measure decays of vector mesons such as  into e+e- to study

modification of its mass spectra in a nucleus. We consider this experiment to be a pre-experiment for
J-PARC-HI, which gives baseline data for heavy-ion collisions, and also tests of prototype detectors
such as Multi-layer Resistive Plate Chamber (MRPC) are planned. E16 uses the high-momentum
beam line, which will be completed in the end of 2019. We will start the phase-0 experiment withpart of the final detector setup in 2020. For that, we are preparing for detectors such as lead-glass
calorimeters.

- 172 -

JAEA-Evaluation 2018-003

4.5. Research for RHIC and Belle
We continue participation of RHIC and Belle experiments by a few members in limited working
time to study hot/dense hadronic matter and heavy-flavor hadrons. We will participate in analysis ofSTAR experimental data for J-PARC-HI, and analysis heavy-flavor hadrons with Belle and Belle-IIdata.
4.6. Plan for theoretical studies
The theory members of our group, the Research Group for Hadron Nuclear Physics, investigate
structures and properties of hadrons containing strange and charm quarks. The theoretical studies aredone along with the experimental data provided by the experimental researchers of our group.
One of the most important topics in our group is to determine the hadron-hadron interactions in
strangeness 𝑆𝑆 = −2 sector. This can be done by theoretical investigation of double hyper nuclei,

whose candidates are being observed in the E07 experiment at J-PARC. Because we have techniquesof many-body calculations in quantum mechanics, we are ready to extract the hadron-hadroninteractions in 𝑆𝑆 = −2, in particular the Λ-Λ Lambda-Lambda and Ξ-𝑁𝑁 interactions, from thebinding energies of the double hyper nuclei. We will perform this analysis when E07 experimentdiscovers double hyper nuclei.

It is also important to understand how hadrons behave in nuclear medium. We study changes ofproperties of vector mesons in nuclear medium, which will be complementary to the J-PARC E16
experiment. To pin down theoretically the properties of vector mesons in nuclear medium, the QCD
sum rule will be the best tool. However, until now there is theoretical ambiguity in the shift of thequark-gluon condensate from the vacuum to nuclear medium, which is essential for the calculationsof vector meson properties in the QCD sum rule. To solve this, we try to calculate the quark-gluon
condensate in finite-density lattice QCD calculation. Then, by using the quark-gluon condensate infinite-density lattice QCD calculation, we make a precise prediction on the vector meson properties
in nuclear medium.
Several other topics are going to be studied: Detailed theoretical analysis of the peak structure
̅ 𝑁𝑁𝑁𝑁 nucleus, a new form of atomic
in J-PARC E15 experiment, which can be interpreted as the 𝐾𝐾

nucleus. Nuclear matter under strong magnetic field, from the view point of interdisciplinary

collaboration with condensed matter physicists. Application of the Skyrme model on hadronicsystems with strange/charm quarks and on nuclear matter.
In addition, the theory members of our group also participate in the new theory group of ASRC,
Theoretical Physics Institute (TPI), which was established in 2015. In this TPI, we will discuss andwork for many-body problems in various scales, especially from the viewpoint of quantum clusters,
together with ASRC members whose research field is theoretical physics. We expect a synergy effectby sharing members’ wide spread backgrounds covering (a) Quark and hadron physics, (b) Nuclear
physics, and (c) Spin energy physics.

- 173 -

JAEA-Evaluation 2018-003

5. Uniqueness, advantage, and strategy for international COE
J-PARC is the only intense hadron beam facility for hadron physics in the world. A complementary
hadron physics facility is the Jefferson Laboratory in USA, where they provide electrons and photon
beams. Since our research group is located inside the J-PARC site, the group has great advantage incollecting international experimental and theoretical researchers of hadron and nuclear physics forcollaborative works. Our group is becoming one of the largest and strongest groups in the hadron
physics field in Japan with excellent experimental and theoretical research members including postdocs
and students. For PD and student positions to our group, many candidates apply, which shows researchgoals and activities of our group attracts young scientists. Our research activities cover experimental
and theoretical studies of hadrons with strange and charm quarks as well as high-density hadronicmatter, which is unique compared to other research groups. It is also our originality that we constructeda high rate and large acceptance Hyperon Spectrometer with a Time Projection Chamber (TPC) whichenables high sensitivity search for H-dibaryon and makes various measurements requiring large
acceptance possible.
In order to promote further international research collaboration, we have held Reimei international
workshops and invited researchers from abroad in short and long terms. We continue those efforts in
the rest of the current seven-year plan period. Among them, we employed Ken Hicks in 2017 toaccelerate detector development for E45, and HyunChul Kim in 2018 as a Research Fellow to promote
theoretical hadron research. Also, a new research MoU was exchanged between ASRC and Vinca
Institute of University of Belgrade for the J-PARC-HI project.
6.

Impacts to basic science and human society
Our researches on hadrons and hadronic systems with strange and heavier quarks provide

invaluable clues to solve one of the most basic questions in science, why nucleons and nuclei are formed
from quarks in the universe. One of the key problems is the origin of the mass of hadrons, 99% of which
is believed to be originated from the dynamics of QCD. Another key problem is the origin of nuclear
force which is not yet understood well based on QCD. Our researches will also have ripple effects on
astrophysics such as neutron stars.
7. Summary
In summary, we performed two J-PARC experiments, E13 (gamma ray spectroscopy of 4He and
19F) and E07 (studies of double strange nuclear systems with emulsion). We discovered a large charge

symmetry breaking effect between 4He and its mirror nucleus, 4H. We have found several candidates
for double  hypernuclear events as well as twin  hypernuclear events. We completed detectors ofHyperon Spectrometer for the H-dibaryon search experiment (E42), and will complete additional
detectors for a baryon spectroscopy experiment (E45) in one year. The E42 experiment was approved
for the Stage-2 status, and the E45 for the Stage-1 status. We also proposed an experiment (E72) tosearch for a new baryon resonance, and it was approved for the Stage-1 status. As for the J-PARC-HI- 174 -

JAEA-Evaluation 2018-003

project, design works are in progress for the experiments and the spectrometers to create dense matterand to explore structure of the QCD phase diagram.
In the rest of the current seven-year plan period, we are going to complete the analysis of E07,
perform E42, and possibly carry out also E45 or E72. For J-PARC-HI, we will make progress for a full
proposal of the project, including a detailed budget plan.
We made progress on theoretical studies on heavy-flavor hadrons with strange and charm quarks,
and hadron properties in high density matter in connection with J-PARC experiments. We also developed
TPI activities for theoretical research in different fields in ASRC. We proposed a Reimei Research
project in Theoretical Physics in FY2018 based on the discussion in TPI.
We have been developing international research exchanges and collaboration utilizing Reimei
Research funds. We will continue this effort to make our group be a stronger international COE ofhadron physics.
We hired seven PDs as JAEA PD, JSPS PD, and Fixed-term Research Fellow positions. Amongthem, we promoted two PDs to permanent staff positions in JAEA. We also accepted ten graduate
students for research works for our group. Our group opened many research opportunities for young
scientists, and have been developing a career path in the field of hadron physics in Japan.
8. Publication list
Peer-Reviewed Papers
2015(1) Spectrum of heavy baryons in the quark model,
T. Yoshida, E. Hiyama, A. Hosaka, M. Oka, K. Sadato,
Phys. Rev. D 92, 114029 (2015).
(2) Look inside charmed-strange baryons from lattice QCD,
K.U. Can, G. Erkol, M. Oka, T.T. Takahashi,
Phys. Rev. D 92, 114515 (2015).
(3) Radiative capture reaction rate from Lambda Lambda to H dibaryon in the imaginary time method,
E. Hikoda, E. Hiyama, M. Oka,
Phys. Rev. C 92, 015205 (2015).
(4) c→*c transition in lattice QCD,
H. Bahtiyar, K. U. Can, G. Erkol, M. Oka,
Phys. Lett. B 747, 281 (2015).
(5) Observation of B0→pD*-,
Y. Y. Chang, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. Lett. 115, 221803 (2015).
(6) Observation of spin-dependent charge symmetry breaking in N interaction; -ray spectroscopy ofH,

4

T. Yamamoto, S. Hasegawa, S. Hayakawa, K. Hosomi, S. H. Hwang, Y. Ichikawa, K. Imai, S.

- 175 -

JAEA-Evaluation 2018-003

Kinbara, Y. Nakada, H. Sako, et al.,Phys. Rev. Lett. 115, 222501 (2015).
(7)  meson production in d+Au collisions at √sNN = 200 GeV,
A. Adare, S. Hasegawa, K. Imai, S. Nagamiya, H. Sako, S. Sato, K. Tanida, et al. (PHENIX
Collaboration),
Phys. Rev. C 92, 044909 (2015).
(8) Cosmic-ray test of a time-of-flight detector for double-strangeness experiments at J-PARC,
S. H. Kim, S. Hwang, J. K. Ahn, H. Ekawa, S. Hayakawa, K. Hosomi, K. Imai, M. H. Kim, J. Y. Lee,et al.,
Nucl. Instrum. Methods Phys. Res. A 795, 39 (2015).
(9) Systematic study of azimuthal anisotropy in Cu + Cu and Au + Au collisions at √sNN =62.4 and 200
GeV,
A. Adare, K. Imai, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 92, 034913 (2015).
(10) Systematic study of charged-pion and kaon femtoscopy in Au + Au collisions at √sNN =200 GeV,
A. Adare, S. Hasegawa, K. Imai, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 92, 034914 (2015).
(11) First observation of the hadronic transition (4S)→hb(1P) and new measurement of the hb(1P)and b(1S) parameters,

U. Tamponi, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. Lett. 115, 142001 (2015).
(12) Measurements of elliptic and triangular flow in high-multiplicity 3He + Au collisions at √sNN =200 GeV,A. Adare, S. Hasegawa, K. Imai, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. Lett. 115, 142301 (2015).
(13) Precise determination of 12C level structure by -ray spectroscopy,
K. Hosomi, Y. Ma, S. Ajimura, K. Aoki, M. Dairaku, Y. Fu, H. Fujioka, K. Futatsukawa, Y. Kakiguch,
et al.,
Prog. Theor. Exp. Phys. 2015, 081D01 (2015).
(14) Study of D** production and light hadronic states in the B0D*+ decay,
D. Matvienko, K. Tanida, et al., (Belle Collaboration),
Phys. Rev. D 92, 012013 (2015).
(15) Centrality dependence of low-momentum direct-photon production in Au + Au collisions at √sNN
=200 GeV,
A. Adare, S. Hasegawa, K. Imai, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 91, 064904 (2015).
(16) Measurement of e+e-→+-(2S) via initial state radiation at Belle,
X. L. Wang, K. Tanida, et al. (Belle Collaboration),- 176 -

JAEA-Evaluation 2018-003

Phys. Rev. D 91, 112007 (2015).
(17) Search for the deeply bound K-pp state from the semi-inclusive forward-neutron spectrum in thein-flight K- reaction on herium-3,
T. Hashimoto, K. Tanida, et al. (J-PARC E15 Collaboration),
Prog. Theor. Exp. Phys. 2015, 061D01 (2015).
_(18) Measurements of B→DD*+s0(2317) decay rates and a search for isospin partners of the D*+s0(2317),
S.-K. Choi, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 91, 092011 (2015).
(19) Measurement of long-range angular correlation and quadrupole anisotropy of pions and(anti)protons in central d+Au collisions at √sNN =200 GeV,
A. Adare, S. Hasegawa, K. Imai, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. Lett. 114, 192301 (2015).
(20) Heavy-quark production and elliptic flow in Au + Au collisions at √sNN =62.4 GeV,
A. Adare, S. Hasegawa, K. Imai, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 91, 044907 (2015).
(21) Amplitude analysis of e+e-→(nS)+- at √s=10.866GeV,
A. Garmash, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 91, 072003 (2015).
(22) A beam position fiber counter with scintillation fibers and multi-pixel photon counter for highintensity beam operation,
R. Honda, K. Miwa, Y. Matsumoto, N. Chiga, S. Hasegawa, K. Imai,
Nucl. Instrum. Methods Phys. Res. A787, 157 (2015).
(23) On-site background measurements for the J-PARC E56 experiment: A search for the sterile neutrino
at J-PARC MLF,
S. Ajimura, T. J. C. Bezerra, E. Chauveau, T. Enomoto, H. Furuta, M. Harada, S. Hasegawa, T.
Hiraiwa, Y. Igarashi, E. Iwai, T. Maruyama, S. Meigo, T. Nakano, M. Niiyama, K. Nishikawa, M.
Nomachi, R. Ohta, H. Sakai, K. Sakai, S. Sakamoto, T. Shima, F. Suekane, S. Y. Suzuki, K. Suzuya,
K. Tauchi,
Prog. Theor. Exp. Phys. 2015, 063C01 (2015).
(24) Observation of X(3872) in B→X(3872)Kdecays,
A. Bala, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 91, 051101(R) (2015).
(25) Measurement of B0→D-s K0s+ and B+→D-s K+K+ branching fractions,J. Wiechczynski, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 91, 032008 (2015).
(26) Backward-angle photoproduction of  and ’ mesons from protons in the photon energy range from
1.5 to 3.0 GeV,
Y. Morino S. H. Hwang, K. Imai, K. Tanida, et al.,- 177 -

JAEA-Evaluation 2018-003

Prog. Theor. Exp. Phys. 2015, 013D01 (2015).
(27) The first evidence of a deeply bound state of −14N system,
K. Nakazawa, K. Imai, S. Kinbara, et al.,Prog. Theor. Exp. Phys. 2015, 033D02 (2015).
(28) Measurement of the strong interaction induced shift and width of the 1ss state of kaonic deuteriumat J-PARC,
J. Zmeskal, K. Tanida, et al.,Acta. Phys. Pol. B 46, 101 (2015).
(29) Structure and properties of nuclear matter at the first-order phase transitions,T. Maruyama,
Acta Astronomica Sinica Suppl. 56, 40 (2015).
(30) Development of Single-Sided Silicon Detectors in the Emulsion-Hybrid System at J-PARC,
H. Ekawa, H. Sako, et al. (J-PARC E07 Collaboration),
JPS Conf. Proc. 8, 021008 (2015).
(31) Searching for the H-Dibaryon in J-PARC with a Large Acceptance Hyperon Spectrometer,
Y. Han, H. Sako, et al.,JPS Conf. Proc. 8, 021002 (2015).
(32) Measurement of the  Spin-flip B(M1) Value in Hypernuclei,
Y. Sasaki, H. Sako, et al.,JPS Conf. Proc. 8, 022013 (2015).
(33) Study of ΛN Interaction via the γ-ray Spectroscopy of 4ΛHe and 19ΛF (E13−1st),
T.O. Yamamoto, K. Hosomi, H. Sako, et al.,JPS Conf. Proc. 8, 021017 (2015).
(34) J-PARC E19 Experiment: Pentaquark + Search in Hadronic Reaction at J-PARC,
T. N. Takahashi, H. Sako, et al.,JPS Conf. Proc. 8, 022011 (2015).
(35) Future Heavy-Ion Program at J-PARC,
H. Sako, et al. (J-PARC heavy-ion Collaboration),
JPS Conf. Proc. 8, 022010 (2015).
(36) Measurement of 3-Body Hadronic Reactions with HypTPC at J-PARC,
S. H. Hwang, et al. (E45 Collaboration),
JPS Conf. Proc. 8, 022008 (2015).
(37) J-PARC E27 Experiment to Search for a K−pp Bound State,
Y. Ichikawa, et al.,JPS Conf. Proc. 8, 021020 (2015).
(38) Future project of a heavy-ion experiment at J-PARC,
H. Sako et al.,PoS CPOD2014, 043 (2015).

- 178 -

JAEA-Evaluation 2018-003(39) Emulsion Scanning Systems for Double-strangeness Nuclei,
J. Yoshida, S. Kinbara, A. Mishina, K. Nakazawa, Myint Kyaw Soe, Khin Than Tint, Aye Moh Moh
Theint,Phys. Procedia 80, 62 (2015).
(40) Study of Double-strangeness Nuclear Systems with Nuclear Emulsion,
K. Nakazawa, S. Kinbara, et al.,Phys. Procedia 80, 69 (2015).
(41) Track Following of Ξ− Hyperons in Nuclear Emulsion for the E07 Experiment,
A. Mishina, S. Kinbara, et al.,JPS Conf. Proc. 8, 021009 (2015).
(42) Event Analysis in Nuclear Emulsion for the E07 Experiment at J-PARC,
Myint K. Soe, S. Kinbara, et al.,JPS Conf. Proc. 8, 021006 (2015).
(43) Single Charged Particle Identification in Nuclear Emulsion Using Multiple Coulomb Scattering
Method,Khin T. Tint, S. Kinbara, et al.,JPS Conf. Proc. 8, 021004 (2015).
(44) Mass Production of Large-sized Nuclear Emulsion Plates for J-PARC E07,
H. Ito, S. Kinbara, et al.,JPS Conf. Proc. 8, 021007 (2015).
(45) Overall Scanning Method for the J-PARC E07 Experiment,
J. Yoshida, K. Nakazawa, Khin Than Tint, Myint Kyaw Soe, S. Kinbara, A. Mishina, Y. Endo, H.
Itoh, H. Kobayashi,
JPS Conf. Proc. 8, 021015 (2015).
(46) Isotope Identification in Nuclear Emulsion Plate,
S. Kinbara, et al.,JPS Conf. Proc. 8, 021014 (2015).
(47) Development of Automatic Alpha-Decay Track Measurement,
H. Kobayashi, Y. Endo, H. Itoh, S. Kinbara, Khin Than Tint, Myint Kyaw Soe, A. Mishina, J. Yoshida,
K. Nakazawa,
JPS Conf. Proc. 8, 021013 (2015).
(48) Charmed Baryon Spectroscopy Experiment at J-PARC,
K. Shirotori, K. Tanida, et al.,JPS Conf. Proc. 8, 022012 (2015).
(49) Spectroscopic Study of S = −2 Hypernuclei with a New Spectrometer S-2S,
S. Kanatsuki, Y. Ichikawa, H. Ekawa, et al.,JPS Conf. Proc. 8, 021018 (2015).
_(50) Spectroscopic Study of Hyperon Resonances below KN Threshold via the (K-, n) Reaction on- 179 -

JAEA-Evaluation 2018-003

Deuteron,
T. Yamaga, K. Tanida, et al.,JPS Conf. Proc. 8, 021016 (2015).
2016(51) Structure near K−+p+p threshold in the in-flight 3He(K-, Λp)n reaction,
Y. Sada, K. Tanida, et al. (J-PARC E15 Collaboration),
Prog. Theor. Exp. Phys. 2016, 051D01 (2016).
(52) On the structure observed in the in-flight 3He(K-,Λp)n reaction at J-PARC,
T. Sekihara, E. Oset, A. Ramos,
Prog. Theor. Exp. Phys. 2016, 123D03 (2016).
(53) Theoretical study of photoproduction of an η′N bound state on a deuteron target with forward proton
emission,
T. Sekihara, S. Sakai, D. Jido,
Phys. Rev. C 94, 025203 (2016).
(54) Weak decays of heavy hadrons into dynamically generated resonances,
E. Oset, T. Sekihara, et al.,Int. J. Mod. Phys. E 25, 1630001 (2016).
(55) Constituent-counting rule in photoproduction of hyperon resonances,
W.-C. Chang, S. Kumano, T. Sekihara,
Phys. Rev. D 93, 034006 (2016).
(56) Compositeness of baryonic resonances: Application to the Δ(1232), N(1535), and N(1650)
resonances,
T. Sekihara, T. Arai, J. Yamagata-Sekihara, S. Yasui,
Phys. Rev. C 93, 035204 (2016).
(57) Flavor structure of Lambda baryons from lattice QCD: From strange to charm quarks,
P. Gubler, T.T. Takahashi, M. Oka,
Phys. Rev. D 94, 114518 (2016).
(58) Azimuthally anisotropic emission of low-momentum direct photons in Au+Au collisions at √sNN=200 GeV,
A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 94, 064901 (2016).
(59) Measurements of directed, elliptic, and triangular flow in Cu+Au collisions at √sNN=200 GeV,
A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 94, 054910 (2016).
(60) Measurements of double-helicity asymmetries in inclusive J/ production in longitudinallypolarized p+p collisions at √s=510 GeV,
A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. D 94, 112008 (2016).

- 180 -

JAEA-Evaluation 2018-003(61) Triangular flow of negative pions emitted in Pb Au collisions at √sNN = 17.3 GeV,
D. Adamova, H. Sako, et al.,Nucl. Phys. A 957, 99 (2017).
(62) Superconducting Dipole Magnet for Strangeness Physics Program at J-PARC,
J. K. Ahn, S. H. Kim, K. Imai, H. Sako, S. Choi, T. Takahashi,
IEEE Trans. Appl. Supercond. 26, 4002105 (2016).
(63) Negative-parity nucleon excited state in nuclear matter,
K. Ohtani, P. Gubler, M. Oka,
Phys. Rev. C 94, 045203 (2016).
(64) Testing the tetraquark structure for the X resonances in low-lying region,
H. Kim, M.-K. Cheoun, D. Jido, M. Oka,
Eur. Phys. J. A 52, 184 (2016).
(65) D meson mass increase by restoration of chiral symmetry in nuclear matter,
K. Suzuki, P. Gubler, M. Oka,
Phys. Rev. C 93, 045209 (2016).
(66) Searching for charmonium like states with hidden s-sbar,
X.-H. Liu, M. Oka,
Phys. Rev. D 93, 054032 (2016).
(67) D mesons in a magnetic field,
P. Gubler, K. Hattori, S. H. Lee, M. Oka, S. Ozaki, K. Suzuki,
Phys. Rev. D 93, 054026 (2016).
(68) Searching for observable effects induced by anomalous triangle singularities,
X.-H. Liu, M. Oka, Q. Zhao,
Phys. Lett. B 753, 297 (2016).
(69) A model of charmed baryon-nucleon potential and 2- and 3-body bound states with charmed baryon,
S. Maeda, M. Oka, A. Yokota, E. Hiyama, Y.-R. Liu,
Prog. Theor. Exp. Phys. 2016, 023D02 (2016).
(70) Resonances in QCD,
M. F.M. Lutz, J. S. Lange, M. Pennington, D. Bettoni, N. Brambilla, V. Crede, S. Eidelman, A.
Gillitzer, W. Gradl, C. B. Lang, V. Metag, T. Nakano, J. Nieves, S. Neubert, M. Oka, S. L. Olsen, M.
Pappagallo, S. Paul, M. Pelizus, A. Pilloni, E. Prencipe, J. Ritman, S. Ryan, U. Thoma, U. Uwer, W.
Weise,
Nucl. Phys. A 948, 93 (2016).
(71) Two, three, many body systems involving mesons. Multimeson condensates,
E. Oset, M. Bayar, A. Dote, T. Hyodo, K. P. Khemchandani, W. H. Liang, A. Martinez Torres, M.
Oka, L. Roca, T. Uchino, C.W. Xiao,
Acta Phys. Pol. B 47, 357 (2016).
(72) Productions and decays of charmed baryons,- 181 -

JAEA-Evaluation 2018-003

A. Hosaka, E. Hiyama, S.H. Kim, H.-C. Kim, H. Nagahiro, H. Noumi, M. Oka, K. Shirotori, T.
Yoshida, S. Yasui,
Nucl. Phys. A 954, 341 (2016).
(73) Tetraquark and Pentaquark Systems in Lattice QCD,
F. Okiharu, T. Doi, H. Ichie, H. Iida, N. Ishii, M. Oka, H. Suganuma, T. T. Takahashi,
J. Mod. Phys. 7, 774 (2016).
(74) Understanding the nature of heavy pentaquarks and searching for them in pion-induced reactions,
X.-H. Liu, M. Oka,
Nucl. Phys. A 954, 352 (2016).
(75) Single electron yields from semileptonic charm and bottom hadron decays in Au + Au collisions at√sNN = 200 GeV,
A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 93, 034904 (2016).
(76) Forward J/ production in U + U collisions at √sNN = 193 GeV,
A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 93, 034903 (2016).
(77) Scaling properties of fractional momentum loss of high-pT hadrons in nucleus-nucleus collisions at√sNN from 62.4 GeV to 2.76 TeV,
A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 93, 024911 (2016).
(78) Centrality-dependent modiﬁcation of jet-production rates in deuteron-gold collisions at √sNN =200 GeV,A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. Lett. 116, 122301 (2016).
(79) Measurement of parity-violating spin asymmetries in W± production at midrapidity inlongitudinally polarized p + p collisions,A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. D 93, 051103(R) (2016).
(80) Transverse energy production and charged-particle multiplicity at midrapidity in various systems
from √sNN = 7.7 to 200 GeV,
A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 93, 024901 (2016).
(81) meson production in the forward/backward rapidity region in Cu + Au collisions at √𝑠𝑠𝑁𝑁𝑁𝑁 = 200
GeV,

A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),

Phys. Rev. C 93, 024904 (2016).
(82) Measurement of higher cumulants of net-charge multiplicity distributions in Au + Au collisions at√𝑠𝑠𝑁𝑁𝑁𝑁 = 7.7 to 200 GeV,
- 182 -

JAEA-Evaluation 2018-003

A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 93, 011901(R) (2016).
(83) Inclusive cross section and double-helicity asymmetry for 0 production at midrapidity in p+p
collisions at √𝑠𝑠 = 510 GeV,

A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),

Phys. Rev. D 93, 011501(R) (2016).

(84) Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au + Au
collisions at √𝑠𝑠𝑁𝑁𝑁𝑁 = 200 GeV,

A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 93, 051902(R) (2016).
(85) Energy Scan of the e+e- → hb(nP)+- (n = 1, 2) Cross Sections and Evidence for (11020) Decays
into Charged Bottomonium-like States,
R. Mizuk, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. Lett. 117, 142001 (2016).
(86) Study of Excited c States Decaying into 0c and +c Baryons,J. Yelton, K. Tanida, et al. (Belle collaboration),
Phys. Rev. D 94, 052011 (2016).
(87) Studies of charmed strange baryons in the D final state at Belle,
Y. Kato, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 94, 032002 (2016).
(88) First observation of  →𝑝𝑝𝑝𝑝̅ 𝐾𝐾 + 𝐾𝐾 − and search for exotic baryons in pK systems,
C. P. Shen, K. Tanida, et al. (Belle Collaboration),

Phys. Rev. D 93, 112017 (2016).

(89) Search for XYZ states in (1S) inclusive decays,
C. P. Shen, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 93, 112013 (2016).
(90) First Observation of Doubly Cabibbo Suppressed Decay of a Charmed Baryon: c → pK+-,S. B. Yang, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. Lett. 117, 011801 (2016).
(91) Observation of Zb(10610) and Zb(10650) Decaying to B Mesons,A. Garmash, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. Lett. 116, 212001 (2016).
(92) Inclusive and exclusive measurements of B decays to c1 and c2 at Belle,
V. Bhardwaj, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 93, 052016 (2016).
(93) Study of 0 pair production in single-tag two-photon collisions,M. Masuda, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 93, 032003 (2016).

- 183 -

JAEA-Evaluation 2018-003(94) A bonding study toward the quality assurance of Belle-II silicon vertex detector modules,
K.H. Kang, K. Tanida, et al. (Belle-II SVD Collaboration),
Nucl. Instrum. Methods Phys. Res. A 831, 213 (2016).
(95) Belle-II VXD radiation monitoring and beam abort with sCVD diamond sensors,
K. Adamczyk, K. Tanida, et al.,Nucl. Instrum. Methods Phys. Res. A 824, 480 (2016).
(96) The silicon vertex detector of the Belle II experiment,
K. Adamczyk, K. Tanida, e et al.,Nucl. Instrum. Methods Phys. Res. A 824, 406 (2016).
(97) Belle II SVD ladder assembly procedure and electrical qualification,
K. Adamczyk, K. Tanida, et al.,Nucl. Instrum. Methods Phys. Res. A 824, 381 (2016).
(98) Interference effect between φ and Λ(1520) production channels in the γp → K+K−p reaction nearthreshold,S. Y. Ryu, S. Hasegawa, et al.,Phys. Rev. Lett. 116, 232001 (2016).
(99) Dielectron production in Au + Au collisions at √𝑠𝑠𝑁𝑁𝑁𝑁 = 200 GeV,

A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 93, 014904 (2016).

(100) Heavy Ion Physics in the Future,
S. Nagamiya,
Nucl. Phys. A 956, 248 (2016).
(101) Studies of high density baryon matter with high intensity heavy-ion beams at J-PARC,
H. Sako, et al.,Nucl. Phys. A 956, 850 (2016).
(102) EMC studies for the vertex detector of the Belle II experiment,
R. Thalmeiers, K. Tanida, et al.,JINST 11, C01044 (2016).
(103) Construction and test of the first Belle II SVD ladder implementing the origami chip-on-sensor
design, C. Irmler, K. Tanida, et al.,JINST 11, C01087 (2016).
(104) Semileptonic Bs and B decays testing the molecular nature of D∗s0(2317) and D∗0(2400),
E. Oset, F. Navarra, M. Nielsen, T. Sekihara,
AIP Conf. Proc. 1735, 050017 (2016).
(105) Compositeness of the Δ(1232) Resonance in πN Scattering,
T. Sekihara, T. Arai, J. Yamagata-Sekihara, S. Yasui,
JPS Conf. Proc. 10, 022005 (2016).
(106) Single spin asymmetries of forward neutron production in polarized p+p and p+A collisions at- 184 -

JAEA-Evaluation 2018-003√𝑠𝑠 = 200 GeV,
K. Tanida,

PoS DIS2016, 211 (2016).

(107) Finite size effects in hadron-quark phase transition by the Dyson-Schwinger method,
N. Yasutake, H. Chen, T. Maruyama, T. Tatsumi,
J. Phys.: Conf. Ser. 665, 012068 (2016).
(108) Overview of Hadron Physics at J-PARC,
Kiyoshi Tanida,
JPS Conf. Proc. 10, 010019 (2016).
̅ 𝑁𝑁𝑁𝑁 bound state via the 3He(K-, n)(109) Study of the elementary (K-, n) reactions to search for the 𝐾𝐾
reaction at J-PARC,

T. Yamaga, K. Tanida, et al.,AIP Conf. Proc. 1735, 040007 (2016).
(110) Kaon-nucleon systems and their interactions in the Skyrme model,
T. Ezoe, A. Hosaka,
Phys. Rev. D 94, 034022 (2016).
2017(111) Beamline test of a transition-edge-sensor spectrometer in preparation for kaonic-atommeasurements,
T. Hashimoto, K. Tanida, et al.,IEEE Trans. Appli. Supercond., 27, 2100905 (2017).
(112) Measurements of BJ/ at forward rapidity in p+p collisions at √𝑠𝑠 = 510 GeV,
C. Aidala, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. D 95, 092002 (2017).

(113) Angular decay coefficients of J/ mesons at forward rapidity from 𝑝𝑝 + 𝑝𝑝 collisions at √𝑠𝑠 = 510
GeV,

A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),

Phys. Rev. D 95, 092003 (2017).
(114) Nonperturbative-transverse-momentum effects and evolution in dihadron and direct photonhadron angular correlations in p+p collisions at √𝑠𝑠 = 510 GeV,

A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),

Phys. Rev. D 95, 072002 (2017).

(115) Measurement of the relative yields of (2S) to  (1S) mesons produced at forward and backward
rapidity in p+p, p+Al, p+Au, and 3He+Au collisions at √sNN=200 GeV,
A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 95, 034904 (2017).
(116) Measurement of long-range angular correlations and azimuthal anisotropies in high-multiplicity p+ Au collisions at √𝑠𝑠𝑁𝑁𝑁𝑁 = 200 GeV,
- 185 -

JAEA-Evaluation 2018-003

C. Aidala, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 95, 034910 (2017).
(117) Two-body wave functions and compositeness from scattering amplitudes; General properties with
schematic models,T. Sekihara,
Phys. Rev. C 95, 025206 (2017).
(118) Search for the 0-- Glueball in (1S) and (2S) decays,
S. Jia, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 95, 012001 (2017).
(119) Structure of charmed baryons studied by pionic decays,
H. Nagahiro, S. Yasui, A.Hosaka, M. Oka, H. Noumi,
Phys. Rev. D 95, 014023 (2017).
(120) Cross section and transverse single-spin asymmetry of muons from open heavy-flavor decays inpolarized p+p collisions at √𝑠𝑠 = 200 GeV,

C. Aidala, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. D 95, 112001 (2017).

(121) Missing-mass spectroscopy with the 6Li(π−, K+)X reaction to search for Λ6H,
R. Honda, S. Hasegawa, S. H. Hayakawa, Y. Ichikawa, K. Imai, S. Nagamiya, H. Sako, S. Sato, K.
Tanida, et al.,Phys. Rev. C 96, 014005 (2017). [Editors’ Suggestion](122) Measurements of e+e− pairs from open heavy flavor in p+p and d+A collisions at √sNN =200
GeV,
A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 96, 024907 (2017).
(123) Invariant-mass and fractional-energy dependence of inclusive production of di-hadrons in e+eannihilation at √s = 10.58 GeV,
R. Seidl, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 96, 032005 (2017).
(124) Measurement of the branching fraction and CP asymmetry in B0  00 decays, and an improved
constraint on 2,
T. Julius, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 96, 032007 (2017).
(125) Observation of an alternative c0(2P) candidate in e+ e-  J/ DDbar,
K. Chilikin, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 95, 112003 (2017).
(126) First measurement of T-odd moments in D0  Ks0 decays,
K. Prasanth, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 95, 091101(R) (2017).

- 186 -

JAEA-Evaluation 2018-003(127) The Belle II SVD data readout system,
R. Thalmeier, K. Tanida, et al.,Nucl. Instrum. Methods Phys. Res. A 845, 633 (2017).
(128) The Belle II silicon vertex detector assembly and mechanics,
K. Adamczyk, K. Tanida, et al. (Belle-II SVD Collaboration),
Nucl. Instrum. Methods Phys. Res. A 845, 38 (2017).
(129) Theoretical Study of the  (1620) and  (1690) resonances in c to +MB decays,
K. Miyahara, T. Hyodo, M. Oka, J. Nieves, E. Oset,
Phys. Rev. C 95, 35212 (2017).
(130) c c  coupling and c to c  decay in lattice QCD,
K.U. Can, G. Erkol, M. Oka, T.T. Takahashi,
Phys. Lett. B 768, 309 (2017).
(131) c   ’c transition in lattice QCD,
H. Bahtiyar, K. U. Can, G. Erkol, M. Oka, T. T. Takahashi,
Phys. Lett. B 772, 121 (2017).
(132) Derivative Expansion of Wave Function Equivalent Potentials,
T. Sugiura, N. Ishii, M. Oka,
Phys. Rev. D 95, 74514 (2017).
(133) Measurements of azimuthal anisotropy and charged-particle multiplicity in d+ Au collisions at √sNN= 200, 62.4, 39, and 19.6 GeV,
C. Aidala, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 96, 064905 (2017).
(134) Search for +c  p0 and branching fraction measurement of +c  +p0,
B. Pal, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 96, 051102(R) (2017).
(135) Search for CP violation and measurement of the branching fraction in the decay D0  K0S K0S,
N. Dash, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. Lett. 119, 171801 (2017).
(136) Study of  and dipion transitions in (4S) decays to lower bottomonia,
E. Guido, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 96, 052005 (2017).
(137) Evidence for isospin violation and measurement of CP asymmetries in B  K*(892),T. Horiguchi, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. Lett. 119, 191802 (2017).
(138) Measurement of the decays B  ℓℓ and B  ℓℓ in fully reconstructed events at Belle,
C. Beleno, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 96, 091102(R) (2017).
(139) Search for light tetraquark states in (1S) and (2S) decays,- 187 -

JAEA-Evaluation 2018-003

S. Jia, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 96, 112002 (2017).
(140) B-meson production at forward and backward rapidity in p + p and Cu + Au collisions at √sNN
= 200 GeV,
C. Aidala, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 96, 064901 (2017).
(141) Finite temperature sum rules in the vector channel at finite momentum,
P. Gubler, D. Satow,
Phys. Rev. D 96, 114028 (2017).
(142) Charmed Baryon Λc in Nuclear Matter,
K. Ohtani, K-J Araki, M. Oka,
Phys. Rev. C 96, 055208 (2017).
(143) Flavor-singlet hidden-charm pentaquark,
Y. Irie, M. Oka, S. Yasui,
Phys. Rev. D 97, 034006 (2018).
(144) Search for  bound states in the 12C(K-, K+)X reaction at 1.8 GeV/c in J-PARC,
T. Nagae, H. Ekawa, S. Hasegawa, K. Hosomi, Y. Ichikawa, K. Imai, H. Sako, S. Sato, H. Sugimura,
K. Tanida, et al.,PoS INPC2016, 038 (2017).
(145) Multidimensional structure of chiral crystals in quark matter,
T.-G. Lee, N. Yasutake, T. Maruyama, T. Tatsumi,
PoS INPC2016, 326 (2017).
̅ -nucleus interaction by using the 12C(K-, p) reaction at J-PARC,(146) Study of the 𝐾𝐾

Y. Ichikawa, H. Ekawa, S. Hasegawa, S. Hayakawa, K. Hosomi, K. Imai, S. Kinbara, Y. Nakada, H.
Sako, S. Sato, et al.,JPS Conf. Proc. 13, 020007 (2017).
(147) Kaon condensation in hyperonic matter and equation of state,
T. Muto, T. Maruyama, T. Tatsumi,
JPS Conf. Proc. 14, 020809 (2017).
(148) Neutron star cooling with various superfluid and superconducting states,
T. Noda, M. Hashimoto, Y. Matsuo, N. Yasutake, T. Maruyama, T. Tatsumi,
JPS Conf. Proc. 14, 020805 (2017).
(149) Multi-dimensional structure of crystalline chiral condensates in quark matter,
T.-G. Lee, K. Nishiyama, N. Yasutake, T. Maruyama, T. Tatsumi,
JPS Conf. Proc. 14, 020808 (2017).
(150) Spectroscopic experiment of (1405) via the in-flight d(K-, n) reaction at J-PARC K1.8BR,
S. Kawasaki, T. Hashimoto, K. Tanida, et al.,JPS Conf. Proc. 13, 020018 (2017).

- 188 -

JAEA-Evaluation 2018-003(151) First observation of doubly-Cabibbo-suppressed decay in the baryon sector at Belle cpK+-,K. Tanida,
PoS CHARM2016, 048 (2017).
(152) The First Gamma-ray Spectroscopic Study of sd-shell Hypernucleus, 19F,
S.B. Yang, H. Ekawa, S. Hasegawa, S. Hayakawa, Y. Ichikawa, K. Imai, H. Sako, S. Sato, K. Tanida,
et al.,JPS Conf. Proc. 17, 012004 (2017).
(153) High Statistics Σp Scattering Experiment Using High Intensity Pion Beams at J-PARC,
K. Miwa, S. Hasegawa, S. Hayakawa, K. Imai, H. Sako, S. Sato, K. Tanida, et al.,JPS Conf. Proc. 17, 041002 (2017).
(154) Simulation Studies for a Hyperon Time Projection Chamber (HypTPC) at J-PARC,
S.H. Kim, J. K. Ahn, H. Sako, Y. Han,
JPS Conf. Proc. 17, 033009 (2017).
(155) Search for Excited State of Σ Hypernucleus in the J-PARC E13 Experiment,
M. Nakagawa, H. Ekawa, S. Hasegawa, S. Hayakawa, Y. Ichikawa, H. Sako, S. Sato, K. Tanida, etal.,
JPS Conf. Proc. 17, 012009 (2017).
(156) Gamma-ray Spectroscopy of Hypernuclei — Recent Results and Prospect at J-PARC —,H. Tamura, H. Ekawa, S. Hasegawa, S. Hayakawa, Y. Ichikawa, H. Sako, S. Sato, K. Tanida, et al.,JPS Conf. Proc. 17, 011004 (2017).
(157) Measurement of the Vector Meson Spectral Modification in the Nuclear Medium at J-PARC,
Y. Komatsu, H. Sako, S. Sato, et al.,JPS Conf. Proc. 13, 020005 (2017).
(158) Baryon spectroscopy in (, 2) reactions with 106 Hz pion beams at J-PARC,
H. Sako, S. Hasegawa, K. Hosomi, Y. Ichikawa, K. Imai, K. Hicks, J. K. Ahn, S. Kim, J. Lee, S.
Hwang,PoS INPC2016, 266 (2017).
(159) Spectroscopic Study of Hyperon Resonance Below √𝑠𝑠 = 510N Threshold via the d(K-, n)Reaction,

K. Inoue, K. Tanida, et al.,JPS Conf. Proc. 17, 072003 (2017).
(160) Kaonic-Atom X-ray Spectroscopy with Superconducting Microcalorimeters,
T. Hashimoto, K. Tanida, et al.,JPS Conf. Proc. 17, 072001 (2017).
(161) RHIC forward experiment to study √s dependence of forward particle production,
T. Sako, K. Tanida, et al.,EPJ Web Conf. 145, 10005 (2017).
(162) Properties of non-local wave function equivalent potential with generalized derivative expansion,- 189 -

JAEA-Evaluation 2018-003

T. Sugiura, K. Murano, N. Ishii, M. Oka,PoS LATTICE2016, 122 (2017).
(163) Theory Overview of the Hyperon-Nucleon Interactions and Scatterings,
M. Oka,JPS Conf. Proc. 17, 41001 (2017).
(164) Charmed baryons and their interactions,A. Hosaka, E. Hiyama, S.H. Kim, H.-C. Kim, H. Nagahiro, H. Noumi, M. Oka, K. Shirotori, T.
Yoshida, S. Yasui,
JPS Conf. Proc. 17, 111002 (2017).
(165) Searching for Detectable Effects Resulted by Triangle Singularity Mechanism,
X.-H. Liu, M. Oka, Q. Zhao,
JPS Conf. Proc. 17, 112002 (2017).
cN and c NN Bound States in the Potential Model,

S. Maeda, A. Yokota, E. Hiyama, M. Oka, Y.-R. Liu,JPS Conf. Proc. 17, 112006 (2017).
(167) D Meson Properties in Nuclear Medium from QCD Sum Rules,
K. Suzuki, P. Gubler, M. Oka,JPS Conf. Proc. 17, 112007 (2017).
(168) Dynamically Generated Ξ(1690),
T. Sekihara,
JPS Conf. Proc. 17, 112007 (2017).
(169) Two-body Wave Functions, Compositeness, and the Internal Structure of Dynamically Generated
Resonances,
T. Sekihara, T. Hyodo, D. Jido, J. Yamagata-Sekihara, S. Yasui,
PoS INPC2016, 289 (2017).
̅ 𝑁𝑁𝑁𝑁 threshold,(170) The Peak Structure in the In-Flight 3He(K-, p)n Reaction around the 𝐾𝐾
T. Sekihara, E. Oset and A. Ramos,

JPS Conf. Proc. 13, 020002 (2017).

(171) Exotic-Hadron Signature by Constituent-Counting Rule in Perturbative QCD,
W.-C. Chang, H. Kawamura, S. Kumano, T. Sekihara,
JPS Conf. Proc. 13, 020047 (2017).
(172) Double hypernuclei search experiment with hybrid emulsion method at J-PARC (J-PARC E07),
H. Ekawa,
JPS Conf. Proc. 17, 033002 (2017).
(173) Study of Baryon Excited States in (, 2) Reactions at J-PARC,
H. Sako,
JPS Conf. Proc. 17, 063004 (2017).
(174) Double hypernuclei experiment with hybrid emulsion method at J-PARC,- 190 -

JAEA-Evaluation 2018-003

S. Hayakawa,
JPS Conf. Proc. 17, 033003 (2017).
(175) Measurement of the radiative decay of (1405) by using a large acceptance Hyperon spectrometer
at J-PARC,
S. H. Hwang,
JPS Conf. Proc. 17, 033010 (2017).
(176) Development of PID method in nuclear emulsion,
S. Kinbara,
JPS Conf. Proc. 17, 032002 (2017).
(177) Scattered proton detection system for p scattering experiment with the cylindrical scintillatingfiber tracker and BGO calorimeters,
Y. Nakada,
JPS Conf. Proc. 17, 043002 (2017).
(178) Interplay of Kaons and Hyperons in Multi-Strangeness Systems in Relativistic Mean-Field Theory,
T. Muto, T. Maruyama, T. Tatsumi,
JPS Conf. Proc. 17, 102003 (2017).
(179) Kaon Condensation in Hyperonic Matter and Equation of State,
T. Muto, T. Maruyama, T. Tatsumi,
JPS Conf. Proc. 14, 020809 (2017).
(180) Multi-Dimensional Structure of Crystalline Chiral Condensates in Quark Matter,
T.-G. Lee, K. Nishiyama, N. Yasutake, T. Maruyama, T. Tatsumi,
JPS Conf. Proc. 14, 020808 (2017).
(181) Neutron Star Cooling with Various Superfluid and Superconducting States,
T. Noda, M. Hashimoto, Y. Matsuo, N. Yasutake, T. Maruyama, T. Tatsumi,
JPS Conf. Proc. 14, 020805 (2017).
(182) Multidimensional Structure of Chiral Crystals in Quark Matter,
T.-G. Lee, N. Yasutake, T. Maruyama, T. Tatsumi,
PoS INPC2016, 326 (2017).
(183) Spectroscopy of Nuclei with Multi-Strangeness by Using New S-2S Spectrometer at J-PARC,
T. Gogami, S. Hasegawa, Y. Ichikawa, H. Sako, S. Sato, K. Tanida, et al.,JPS Conf. Proc. 18, 011031 (2017).
(184) Spectroscopic Experiment of (1405) via the In-flight d(K, n) Reaction at J-PARC K1.8BR,
S. Kawasaki, T. Hashimoto, K. Tanida, et al.,JPS Conf. Proc. 13, 020018 (2017).
(185) What makes the peak structure of thep invariant-mass spectrum in the 3He(K-,p)n reaction?,
T. Sekihara, E. Oset, A. Ramos,
Acta Phys. Pol. B48, 1869 (2017).
(186) Scanning Systems for Searching Double Strangeness Nuclei in Nuclear Emulsion,- 191 -

JAEA-Evaluation 2018-003

J. Yoshida, et al.,JPS Conf. Proc. 17, 032001 (2017).
(187) Kaon-nucleon scattering states and potentials in the Skyrme model,
T. Ezoe and A. Hosaka,
Phys. Rev. D 96, 054002 (2017).
(188) Three-body decay of c*(2595) and c*(2625) with consideration of c(2455) and c*(2520)
in intermediate states,
A.J. Arifi, H. Nagahiro, A. Hosaka,
Phys. Rev. D 95, 114018 (2017).
2018(189) Inclusive study of bottomonium production in association with an  meson in e+e- annihilations
near (5S),
U. Tamponi, K. Tanida, et al. (Belle Collaboration),
Eur. Phys. J. C 78, 633 (2018).
(190) Observation of (4S) ’ (1S),
E. Guido, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. Lett. 121, 062001 (2018).
(191) Observation of an excited Ω- baryon,
J. Yelton, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. Lett. 121, 052003 (2018). [Editors’ Suggestion](192) Measurement of the branching fraction of BD(*)ℓ at Belle using hadronic tagging in fullyreconstructed events,
A. Vossen, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 98, 012005 (2018).
(193) Cross section and longitudinal single-spin asymmetry AL for forward W±± production inpolarized p + p collisions at √s = 510 GeV,
A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. D 98, 032007 (2018).
(194) Search for B-- decays at the Belle experiment,
A. Sibidanov, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. Lett. 121, 031801 (2018).
(195) Measurement of emission-angle anisotropy via long-range angular correlations with high-pT
hadrons in d+Au and p+p collisions at √sNN = 200 GeV,
A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 98, 014912 (2018).
(196) Search for (1S,2S)Z+c Z(‘)-c and e+e-Z+c Z(‘)-c at √s= 10.52, 10.58, and 10.867 GeV,
S. Jia, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 97, 112004 (2018).

- 192 -

JAEA-Evaluation 2018-003(197) Measurement of Time-dependent CP Asymmetries in B0KS Decays,
H. Nakano, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 97, 092003 (2018).
(198) Observation of c0 (2930) and updated measurement of B-K-+c-c,Y.B. Li, K. Tanida, et al. (Belle Collaboration),
Eur. Phys. J. C 78, 252 (2018).
(199) Production cross sections of hyperons and charmed baryons from e+e- annihilation near √s =10.52 GeV,
M. Niiyama, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 97, 072005 (2018).
(200) Study of K0S pair production in single-tag two-photon collisions,M. Masuda, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 97, 052003 (2018).
(201) Observation of excited Ωc charmed baryons in e+e- collisions,J. Yelton, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 97, 051102 (2018).
(202) First Determination of the Level Structure of an sd-Shell Hypernucleus, 19F,
S.B. Yang, Y. Ichikawa, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al.,Phys. Rev. Lett. 120, 132505 (2018).
(203) Measurements of mass-dependent azimuthal anisotropy in central p+Au, d+Au, and 3He+Au
collisions at √sNN=200 GeV,
A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 97, 064904 (2018).
(204) Lévy-stable two-pion Bose-Einstein correlations in √sNN=200GeV Au+Au collisions,A. Adare, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. C 97, 064911 (2018).
(205) Nuclear dependence of the transverse-single-spin asymmetry for forward neutron production inpolarized p + A collisions at √sNN = 200 GeV,
C. Aidala, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. Lett. 120, 022001 (2018).
(206) Angular analysis of the e+e  D(*)D* process near the open charm threshold using initial-stateradiation,
V. Zhukova, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 97, 012002 (2018).
(207) Measurement of the  lepton polarization and R(D*) in the decay B  D*,S. Hirose, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 97, 012004 (2018).
(208) Measurements of the absolute branching fractions of B+  XccK+ and B+  D(*)0+ at Belle,- 193 -

JAEA-Evaluation 2018-003

Y. Kato, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 97, 012005 (2018).
(209) Measurement of the tau Michel parameters  and  in the radiative leptonic decay   ℓℓ,
N. Shimizu, K. Tanida, et al. (Belle Collaboration),
Prog. Theor. Exp. Phys. 2018, 023C01 (2018).
(210) Search for CP violation in the D+   decay at Belle,
V. Babu, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 97, 011101 (2018).
(211) Measurements of multiparticle correlations in d+Au collisions at 200, 62.4, 39, and 19.6 GeV andp+Au collisions at 200 GeV and implications for collective behavior,
C. Aidala, S. Hasegawa, H. Sako, S. Sato, K. Tanida, et al. (PHENIX Collaboration),
Phys. Rev. Lett. 120, 062302 (2018).
(212) Measurement of Branching Fractions of Hadronic Decays of the F,J. Yelton, K. Tanida, et al. (Belle Collaboration),
Phys. Rev. D 97, 051102 (2018).
(213) NΩ interaction: Meson exchanges, inelastic channels, and quasibound state,
T. Sekihara, Y. Kamiya, T. Hyodo,
Phys. Rev. C 98, 015205 (2018).
(214) Possible 'd bound state and its s-channel formation in the d → d reaction,
T. Sekihara, H. Fujioka, T. Ishikawa,Phys. Rev. C 97, 045202 (2018).
(215) Charmonium ground and excited states at finite temperature from complex Borel sum rules,
K.-J. Araki, K. Suzuki, P. Gubler, M. Oka,
Phys. Lett. B 780, 48 (2018).
(216) GEM based TPC for the high intensity beam at J-PARC,
S. H. Kim, J. K. Ahn, H. Sako, Y. Ichikawa, H. Sugimura,
PoS Hadron2017, 221 (2018).
(217) Studies of the QCD Phase Diagram with Heavy-Ion Collisions at J-PARC,
H. Sako,
JPS Conf. Proc. 20, 011051 (2018).
(218) Heavy Ion Acceleration at J-PARC,
S.Sato,
EPJ Web of Conf. 171, 21002 (2018).
(219) Kaon Condensation and Hyperon Mixture in Inhomogeneous Neutron Star Matter,
T. Maruyama, T. Muto, T. Tatsumi,
JPS Conf. Proc. 20, 011043 (2018).
(220) Equation of State with Kaon Condensation and Hyperons in Dense Matter,
T. Muto, T. Maruyama, T. Tatsumi, T. Takatsuka,- 194 -

JAEA-Evaluation 2018-003

JPS Conf. Proc. 20, 011038 (2018).
(221) Cooling of Compact Stars with Nucleon Superfluidity and Quark Superconductivity,
T. Noda, M. Hashimoto, N. Yasutake, T. Maruyama, T. Tatsumi,
JPS Conf. Proc. 20, 011003 (2018).
(222) Prospect of heavy-ion collision experiments at J-PARC,
H. Sako,
PoS CPOD2017, 028 (2018).
̅ 𝑁𝑁𝑁𝑁 bound-state search in the J(223) Theoretical analysis on the 𝐾𝐾 − 3He → Λ𝑝𝑝𝑝𝑝 reaction for the 𝐾𝐾
PARC E15 experiment,

T. Sekihara, E. Oset, A. Ramos,

PoS Hadron2017, 199 (2018).
Invited Talks at International Conferences
2015(1) Spectroscopy of Heavy Quark Hadrons from QCD,
M. Oka,Flavor Physics & CP violation 2015 (FPCP 2015), Nagoya, Japan, May 28, 2015.
(2) Spectroscopy of Heavy Quark Hadrons from QCD,
M. Oka,GSI Theory Seminar, Darmstadt, Germany, Jun. 11, 2015.
(3) Di-baryons with and without Strangeness,
M. Oka,1st Hadron Spanish Network Days and Spanish-Japanese JSPS Workshop, Valencia, Spain, Jun. 16,2015.
(4) Mixed phases in compact stars,
T. Maruyama,Int. Workshop on Theory of Nuclear Interaction for Heavy-ion Collisions and Astrophysics(NNINT2015), Catania, Italy, Jun. 18-20, 2015.
(5) Overview of hadron physics at J-PARC,
K. Tanida,
The 10th International Workshop on the Physics of Excited Nucleons (NSTAR2015), Osaka, Japan,
May 25-28, 2015.
(6) Physics with HypTPC at J-PARC,
K. Hosomi,
The 10th International Workshop on the Physics of Excited Nucleons (NSTAR2015), Osaka, Japan,
May 25-28, 2015.
(7) Baryon spectroscopy with (,2) reactions at J-PARC E45,
H. Sako,- 195 -

JAEA-Evaluation 2018-003

The International Workshop on Partial Wave Analysis for Hadron Spectroscopy (PWA8/ATHOS3),
Ashburn, USA, Apr. 13, 2015.
(8) Nuclei with strangeness at J-PARC,
K. Tanida,
International Conference on Nuclear Fragmentation 2015 (NUFRA2015), Kemer, Antalya, Turkey,
Oct. 4-11, 2015.
(9) Selected results on nuclei and hadrons with strangeness from J-PARC,
K. Tanida,
KPS meeting, Kyeongju, Korea, Oct. 21-23, 2015.
(10) Baryon spectroscopy and studies of extremely dense matter at J-PARC,
H. Sako,2015 HaPhy-HIM Joint Meeting: Experimental and Theoretical Nuclear Physics, Daejeon, Korea,
Aug. 2015.
(11) Studies of dense matter with high intensity heavy-ion beams at J-PARC,
H. Sako,HINT2015, Tokai, Japan, Oct. 2015.
(12) What we know and what we don't know in light baryon spectroscopy Resonances in QCD,
M. Oka, GSI, Darmstadt, Germany, Oct. 12-14, 2015.
(13) Theoretical aspects of YN scattering,
M. Oka,The 12th International Conference on Hypernuclear and Strange Particle Physics (HYP2015), Sendai,
Japan, Sep. 7-12, 2015.
(14) Mixed phases in compact stars, Symmetry energy from Giant Resonances to Neutron Stars(NNINT),
T. Maruyama,
Catania, Italy, Jun. 2015.
2016(15) K-Nucleus Interaction study at J-PARC,
Y. Ichikawa,
The 31st Reimei Workshop on Hadron Physics in Extreme Conditions at J-PARC, Tokai, Japan, Jan.
2016.
(16) Belle results: Cabibbo-double-suppressed weak decay of c,
K. Tanida,
The 31st Reimei Workshop on Hadron Physics in Extreme Conditions at J-PARC, Tokai, Japan, Jan.
2016.
(17) Hypernuclear gamma spectroscopy,
K. Hosomi,
The 31st Reimei Workshop on Hadron Physics in Extreme Conditions at J-PARC, Tokai, Japan, Jan.

- 196 -

JAEA-Evaluation 2018-003

2016.
(18) Heavy-Ion Physics at J-PARC,
S. Nagamiya,
The 31st Reimei Workshop on Hadron Physics in Extreme Conditions at J-PARC, Tokai, Japan, Jan.
2016.
(19) Overview of J-PARC Heavy-ion Project,
H. Sako,
The 31st Reimei Workshop on Hadron Physics in Extreme Conditions at J-PARC, Tokai, Japan, Jan.
2016.
(20) Exploring QCD phase structures with heavy-ion beams at J-PARC ―A future project at J-PARC―,
H. Sako,J-PARC Workshop 2016: From Exotic hadrons to QGP ―The 33rd Reimei Workshop―, Incheon,
Korea, Jul. 2016.
(21) The first observation of doubly Cabbibo suppressed decay of charmed baryon,
K. Tanida,
J-PARC Workshop 2016: From Exotic hadrons to QGP ―The 33rd Reimei Workshop―, Incheon,
Korea, Jul. 2016.
(22) J-PARC-HI Overview,
H. Sako,J-PARC Workshop 2016: From Exotic hadrons to QGP ―The 33rd Reimei Workshop―, Incheon,
Korea, Jul. 2016.
(23) Experimental study of double hypernuclei at J-PARC,
H. Ekawa,
2016 JAEA/ASRC Reimei Workshop: New exotic hadron matter at J-PARC, Incheon, Korea, Oct.
2016.
̅-nucleus interaction studied by 12C(K-, p) spectrum,(24) 𝐾𝐾
Y. Ichikawa,2016 JAEA/ASRC Reimei Workshop: New exotic hadron matter at J-PARC, Incheon, Korea, Oct.

2016.
(25) Effects of structurization of dense matter,
T. Maruyama,
2016 JAEA/ASRC Reimei Workshop: New exotic hadron matter at J-PARC, Incheon, Korea, Oct.
2016.
(26) Sterile Neutrino Search at J-PARC/MLF,
S. Hasegawa,2016 JAEA/ASRC Reimei Workshop: New exotic hadron matter at J-PARC, Incheon, Korea, Oct.
2016.

- 197 -

JAEA-Evaluation 2018-003(27) Two-body wave functions and compositeness from scattering amplitudes,
T. Sekihara,
2016 JAEA/ASRC Reimei Workshop: New exotic hadron matter at J-PARC, Incheon, Korea, Oct.
2016.
(28) Xi_fc spectroscopy at Belle,
K. Tanida,2016 JAEA/ASRC Reimei Workshop: New exotic hadron matter at J-PARC, Incheon, Korea, Oct.
2016.
(29) Summary talk,
K. Imai,
The 14th International Conference on Meson Nucleon Physics and the Structure of the Nucleon(MENU2016), Kyoto, Japan, 2016.
̅ Σ molecular state,(30) Ξ(1690) as a 𝐾𝐾
T. Sekihara,

Hadron productions: Theory and Experiment, Pohang, Korea, Nov. 25-26, 2016.

(31) J-PARC Hadron Project and Heavy Quark Physics,
M. Oka,International Workshop “Hadronic Matter under Extreme Conditions”, Dubna, Russia, Oct. 30-Nov.
4, 2016.
(32) Results on charmed/strange baryons at Belle,
K. Tanida for the Belle collaboration,
9th High-Energy Physics International Conference in Quantum Chromodynamics (QCD2016),
Montpellier, France, Jul. 4-8, 2016.
(33) J-PARC Heavy-Ion Program,
H. Sako,
Tsukuba Global Science Week 2016 (TGSW2016), Tsukuba, Japan, Sep. 2016.
2017(34) Prospect of Heavy-ion Collision Experiments at J-PARC,
H. Sako,
Plenary talk, CPOD2017, Stony Brook, USA, Aug. 2017.
(35) Study of Baryon Excited States in High-statistics (, 2) Reactions at J-PARC,
H. Sako,
ECT* Workshop, Space-like and time-like electromagnetic baryonic transitions, Trento, Italy, May
2017.
(36) On the structure observed in the in-flight 3He (K-, Λ p) n reaction at J-PARC,
T. Sekihara, E. Oset, A. Ramos,
2nd Jagiellonian Symposium on Fundamental and Applied Subatomic Physics, Krakow, Poland, Jun.
4-9, 2017.

- 198 -

JAEA-Evaluation 2018-003(37) On the structure observed in the in-flight 3He (K-, Λ p) n reaction at J-PARC,
T. Sekihara, E. Oset, A. Ramos,
Strangeness and charm in hadrons and dense matter, Kyoto, Japan, May 15-26, 2017.
(38) On the structure observed in the in-flight 3He (K-, Λ p) n reaction at J-PARC,
T. Sekihara, E. Oset, A. Ramos,
International Workshop on Strangeness Nuclear Physics 2017, Osaka, Japan, Mar. 12-14, 2017.
(39) Kaonic nuclei studies via K- induced reactions at J-PARC,
T. Hashimoto,International Conference on Exotic Atoms and Related Topics (EXA2017), Vienna, Austria, Sep. 1015, 2017.
(40) Hidden-charm Pentaquarks in a Constituent Quark Model,
M. Oka,ECT* Workshop “The Charm and Beauty of Strong Interactions”, Trento, Italy, Jul. 18, 2017.
(41) Hidden-charm Pentaquarks in a Constituent Quark Model,
M. Oka,11th APCTP-BLTP JINR-PNPI NRC KI-SPbU Joint Workshop, Petergof, Russia, Jul. 24, 2017.
(42) Charmed Hadrons in Nuclei,
M. Oka,The 7th Asia-Pacific Conference on Few-Body Problems in Physics (APFB 2017), Guilin, China,
Aug. 30, 2017.
(43) Charm baryon spectroscopy at Belle and possibilities in future e+e- colliders,K. Tanida,
ECT* Workshop “The Charm and Beauty of Strong Interactions”, Trento, Italy, Jul. 18, 2017.
(44) Baryon spectroscopy at Belle and future prospects for Belle II and J-PARC,
K. Tanida,
2nd Workshop on Future Directions in Spectroscopy Analysis (FDSA2017), Mexico City, Mexico,
Nov. 10, 2017.
(45) The φ meson in nuclear matter – recent results,
P. Gubler,
International Workshop of Hadron and Nuclear Physics (HNP2017), Wako, Japan, Dec. 21, 2017.
(46) On the structure observed in the in-flight 3He (K-, Λp) n reaction at J-PARC,
T. Sekihara, E. Oset, A. Ramos,
Hadron 2017 - XVII International Conference on Hadron Spectroscopy and Structure, Salamanca,
Spain, Sep. 25-29, 2017.
2018(47) Exotic and Conventional Quarkonium Physics Prospects at Belle II,
K. Tanida for Belle II collaboration,- 199 -

JAEA-Evaluation 2018-003

The 13th International Conference on Hypernuclear and Strange Particle Physics (HYP2018),
Portsmouth, USA, Jun. 24-29, 2018.
(48) Possibility of a new narrow * resonance near the  threshold,K. Tanida for J-PARC E72 collaboration,
The 13th International Conference on Hypernuclear and Strange Particle Physics (HYP2018),
Portsmouth, USA, Jun. 24-29, 2018.
(49) Hyperon spectroscopy using hyp-TPC,
K. Tanida,
International workshop on the project for the extended hadron experimental facility of J-PARC,
Tokai, Japan, Mar. 26-28, 2018.
(50) Exploring dense matter with heavy-ion collisions at J-PARC,
H. Sako,International workshop on the project for the extended hadron experimental facility of J-PARC,
Tokai, Japan, Mar. 26-28, 2018.
(51) Towards Understanding the In-medium Phi Meson with Finite Momentum,
P. Gubler,
The Nature of Hadron Mass and Quark-Gluon Confinement from JLab Experiments in the 12-GeV
Era, APCTP, Pohang, Korea, Jul. 1-4, 2018.
(52) Summary of HYP2018,
H. Tamura,
The 13th International Conference on Hypernuclear and Strange Particle Physics (HYP2018),
Portsmouth, USA, Jun. 24-29, 2018.
Books and Scientific Articles(1) Molecular Dynamics Approach to Nuclear Manybody Systems,
T. Maruyama,
Progress of time-dependent nuclear reaction theory, Chapter 13, (edited by Y. Iwata), Bentham
Science Publishers (2017). [Invited Paper](2) Exotic hadrons from heavy ion collisions,S. Cho, T. Hyodo, D. Jido, C. M. Ko, S. H. Lee, S. Maeda, K. Miyahara, K. Morita, M. Nielsen, A.
Onishi, T. Sekihara, T. Song, S. Yasui, K. Yazaki,
Prog. Part. Nucl. Phys. 95, 279 (2017).
(3) Physics with Discovery of Double-Hypernuclei,
K. Nakazawa, J. Yoshida, E. Hiyama,㻌 日本物理学会誌, BUTSURI 73, 308 (2018) (in Japanese).

- 200 -

JAEA-Evaluation 2018-003

Patents
None
Awards(1) 第２２回原子核談話会新人賞,
22nd Young Researcher Award in Experimental Nuclear Physics Community, Strange dibaryon
system produced in the d(π+, K+) reaction at J-PARC,
Y. Ichikawa (2015).
(2) 22nd Outstanding Paper Award of the Physical Society of Japan (2017), The first evidence of adeeply bound state of Xi−–14N system, Prog. Theor. Exp. Phys. 2015, 033D02 (2015),
K. Nakazawa, Y. Endo, S. Fukunaga, K. Hoshino, S. H. Hwang, K. Imai, H. Ito, K. Itonaga, T.
Kanda, M. Kawasaki, J. H. Kim, S. Kinbara, H.Kobayashi, A. Mishina, S. Ogawa, H. Shibuya, T.
Sugimura, M. K. Soe, H. Takahashi, T. Takahashi, K. T. Tint, K. Umehara, C. S. Yoon, J. Yoshida(2017).
Press Release(1) J-PARC ハドロン施設の実験で“奇妙な粒子”が原子核の荷電対称性を破る現象を発見,
佐甲博之, 細見健二 他（2015 年 10 月）.
“Strange” particle breaks the charge symmetry of a nucleus at J-PARC Hadron Experimental Facility,
H. Sako, K. Hosomi, et al. (Oct. 2015).

(2) 極小世界のビリヤード実験㻌 ―偏極陽子と原子核の衝突反応で大きな左右非対称性を発見―,
谷田聖㻘㻌 他（2018 年 1 月）㻚㻌“Billiyard” experiment in a microscopic world ―Discovery of large left-right asymmetry in areaction of a polarized proton and a nucleus―,
K. Tanida, et al. (Jan. 2018).

- 201 -

JAEA-Evaluation 2018-003

3.1.1. Charge symmetry breaking in ��
� ��

� �
�

mirror nuclei

Ground state mass of ��H and ��He is different by
300keV.
Discovery of large charge symmetry breaking(Yamamoto et al., PRL 115, 222501) (Press release)

3.1.2. First study of sd-shell hypernucleus 19F

-rays were observed for the first time in A>16 hypernucleus.
19 F (s ) region

Reconstructed level scheme of 19Fp

16O core

sd orbit

16O core

sd orbit

S. B. Yang et al., PRL120 (2018) 132505.

- 202 -n Almost purep

S=1, L=0
staten

The structure is well understood from ourknowledge of the -N interaction obtained
from lighter hypernuclear data.

JAEA-Evaluation 2018-003

3.2. Study of double hypernuclei using the
hybrid‐emulsion method (E07)
arXiv:1811.07726, Prog. Theor. Exp. Phys. (in press).

SSD

K‐

Target1.8GeV/c

~1mm

K+

‐

Ge detector

X‐rayemulsion sheets

Detected Double Lambda hypernuclear
events. Field of view is about (30m)2* Beam exposure has been finished in Jul. 2017 at J‐PARC Hadron Experimental Facility.
* 104 events of  stop are recorded in 118 emulsion modules as planned.

* So far, 5 double Lambda hypernuclear candidate events have been detected.
* We continue “event hunting” for more double hypernuclear events.

3.3.1./4.1. H‐dibaryon Search (E42)‐High rate beam test of HypTPC at HIMAC‐
Trigger counter

HypTPC

Trigger counter

SiliconStrip
detectors• Stable operation and trackreconstruction of HypTPC
achieved up to 1 MHz with theproton beam at HIMAC in Jul.
2018.

- 203 -

JAEA-Evaluation 2018-003

3.3.2./4.1. Baryon spectroscopy with
NN reactions (E45)
Goals
・Establish N* and *resonances up to 2 GeV/c2
・Search for new baryon states

Hyperon Spectrometer

Superconducting
Helmholtz magnet

e.g. hybrid baryons (qqqg)

+- beam on liquid-H2 target-p→+-n, 0-p
Trigger with
+p→0+p, ++n
2 charged particles+ 1 neutral particle→missing mass

hodoscope

LH2 target beamHypTPC

3.3.2. Baryon spectroscopy with NN reactions (E45)‐Progress of detector development‐
TPC Hodoscope

TPC Hodoscope• Prototype test
almost complete• Construction in
JFY2018
Liquid‐H2 target• Completed in Jul
2018• Cooling test
successful in Jul
2018

LH2 cell and pipes
SUS tube
SUS tube

Cooling test

LH2 target
Beam

Prototype testwith cosmic ray

GRFP
pipe

H gas
tank

LH2 cell 2- 204 -

JAEA-Evaluation 2018-003

3.4./4.1. Search for a new narrow
resonance (1665) (E72)

Measurement of K-p   Reaction with
HypTPC• Reconstruct   p• Identify  by missing mass

Belle: Λ�� → 𝑝𝑝𝑝𝑝 � 𝜋𝜋 �
[PRL117.011801]

Counts / 1𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀𝑀 �

Two past experiments (Belle) and Crystal Ballsuggest existence of new narrow  resonance.
• Establishment of existence of (1665)• Determination of spin and parity via angular
distribution and  polarization

𝑀𝑀 𝑝𝑝𝑝𝑝 � ���𝑀𝑀𝑀𝑀𝑀𝑀𝑀 � �

3.6.1. “K-pp” search (E15)
K-

3He

+
1 GeV/creactionn missing

K-pp?
+

Λ

p

‣ Data taking in

Nov./Dec. 2015 (2ndrun) at K1.8BR‣ “K-pp” bound state!?
- binding energy: ~ 50 MeV- decay width: ~ 110 MeV
S. Ajimura et al., PLB 789, 620 (2019).

- 205 -

JAEA-Evaluation 2018-003

3.6.3. X-rays from K- - 3He, K- - 3He atoms with TES(E62)
to investigate the K-A interaction at low energy
calib.

Au coated Si collimator
TES

240 pixel (Bi + TES)

K-3He K-4He
3d→2p 3d→2p

calib.

FeKαSDDTransition-Edge Sensor
microcalorimeter(operated at ~ 100mK)‣ Data taking in June 2018
‣ First application of this kind of cryogenic detectors to a hadronexperiment.
‣ Successfully observed kaonic atom x-rays with unprecedented

energy resolution < 10 eV FWHM @ 6 keV (cf. SDD ~ 180 eV)

3.7./4.3 Progress of J‐PARC Heavy‐Ion project(J‐PARC‐HI)
Temperature

Goals

Heavy-Ion acceleration at J-PARC

QCD phase diagram

Critical point

nucleus

1st order
phaseboundary

Neutronstar

density

Creation of high density matter in HI
collisions at J‐PARC• QCD phase structures•

Search for critical point and phase transition

EOS of dense matter

Study of Equation of State

New HI injector with existing
synchrotrons
・1-19AGeV/c up to U
・World’s highest rate (1011 Hz) ion beams
White paper (Jun. 2016)
Letter‐Of‐Intent J‐PARC PAC (Jul. 2016)
Symposium at JPS (Sep. 2016)

Next goal : Master plan (Mar 2019)
Submission of Proposal to J‐PARC in 2019‐2020- 206 -

JAEA-Evaluation 2018-003

3.8.1. Left‐right asymmetry in forward neutron
production at RHIC‐PHENIX
p beamPRL120, 022001

Interaction
point
protonCollision
point
Polarized
protonAu beamneutronneutronAu

Polarized
proton• Opposite signs between pAu
and pp
Surprising result→ Reason unknown• Press release on 9 Jan 2018

3.8.2. Double Cabibbo Suppressed Decay at BelleS. B. Yang et al., PRL117, 011801.

�
�

� �

PRL cover page

Discovered forthe first time inbaryon decays.
Rarest decay ofΛ��- 207 -

JAEA-Evaluation 2018-003

3.10.1. Study of the peak structure in K‐+3He→Λ+p+n
・ J‐PARC E15 (K‐pp search):‐ Data taking in May (1st run)- 3He K-  Λ p n‐ Peak structure
Signal of K‐pp?
Sada, Tanida, et al.,PTEP 2016,051D01.

・ Theoretical calculation for E15‐ Assumption of K‐pp bound state Consistent with E15 data

Sekihara,Oset,Ramos, PTEP2016,123D03

3.10.2. KN interactions in the Skyrme model
K(and K)-N local potential V(r) has been derived in the Skyrme modelUseful for the study of Kaons in nuclei [Ezoe & Hosaka, PRD96 (2017) 054002 ]Callan-Klebanov

K

Ezoe-Hosaka

N

H
Kaon around the hedgehog

K

Kaon around the rotating hedgehog

Effects of our new method (rotating Skyrmion)𝑉𝑉��� ��� Lennard-Jones like

� 𝑁𝑁 and 𝐾𝐾𝐾𝐾 phase-shifts
𝐾𝐾

Repulsive core

� 𝑁𝑁:
𝐾𝐾
attraction
𝐾𝐾𝐾𝐾: weak
repulsion

Attractive pocket- 208 -

JAEA-Evaluation 2018-003

3.10.3. Decays of charmed baryons for the study of structure[Arifi-Nagahiro-Hosaka, PR D95(2017)114018]

Excited states of charmed baryons are expected to have two modes= λ and ρ modes

The first p-wave excitations Λ∗�
1/2–, 3/2– are expected to be λ modes,
decaying into Λcππ

λ modeρ modeΛ∗� ������ ���� �� Λ∗� ������ ���� � � Λ� 𝜋𝜋𝜋𝜋Isotope shift：Eλ < Eρρ

λDalitz plots for different states show clear differences

λ modeρ1 modeρ2 mode3.11.5. Hyperon mixture and kaon condensation[Maruyama-Muto-Tatsumi, JPS Conf. Proc. 20 (2018) 011043]

Structured mixed phase caused by the kaon condensationin hyperon-mixed baryon matter
Relativistic MeanField (RMF)+ Thomas-Fermi model is
employed
to
study
the
structure and properties ofhigh-density matter at thecore of neutron stars. Kaon
condensation and hyperon
mixture are expected atsimilar densities.

Density profile in a Wigner-Seitz sell of droplet geometry.
Kaon and hyperons appear spatially apart. This segregation
may affect the particle fraction.

- 209 -

JAEA-Evaluation 2018-003

3.10.6. Exact finite temperature sum rules in the vector channelFirst time derivation of exact sum rules for thermal part ofvector spectral function. [P. Gubler and D. Satow, Phys. Rev. D 96
(2017) 114028]

Vector spectral function at finite T contains information on:

Dileptonproduction rate:Electricalconductivity:

Vectormeson
spectrum:continuumtransport peak

Deriveexact
sum rules

vector meson
peaks

4.4. Study of in‐medium vector meson spectra• Explore the world of light quarksu• determine quark and gluon condensations• key symmetry – chiral symmetry• Leptonic probe – di-lepton

2 MeV
u

• clean signal from complicated hadronic systems• Next‐generation experimentud982 MeV• catch up e+/e− pairs produced in 30 GeV p+A interactions
w/ J‐PARC intense beam & state‐of‐the‐art experimental techniques

Expected Signals

R&D

Lead‐glass Calorimeter• high sensitivity• high granularity

ASD circuit• sensitive trigger readout- 210 -

JAEA-Evaluation 2018-003

Research Group for Advanced Theoretical Physics“Many-body dynamics with quantum clusters formed by non-commutative charges”
1.

Prospective Members

Leader: Atsushi Hosaka
Manager:
Scientific Staff: Michiyasu Mori, Jun’ichi Ieda, Hiroaki Onishi, Hiroyuki Koura, Yutaka Utsuno,
Toshiki Maruyama
Post-Doctoral Fellow:

Takayasu Sekihara (2016~), Kazuki Yoshida (2018~), Philipp Gubler(2017~), Koki Nakata (2017~), Kei Yamamoto (2017~)
Student: Takashi Ezoe (Osaka Univ., D3), Sachio Iwasaki (Tokyo Inst. Tech., D1)
2. Objectives
Quantum clusters play important roles in the formation of matters and in the realization of theirrich functions at various hierarchies and scales, including quarks and nuclei interacting through thestrong interaction, and atomic systems forming molecules and crystals in condensed matter physics.
We have then realized that constituent elements with non-commutative charges, i.e., the elements of
non-commutative (non-Abelian) algebra, play unique roles for the non-trivial dynamics of clusters.
We as a group aim at scrutinizing the theme “Many-body dynamics with quantum clusters formed
by non-commutative charges”. We attempt to create new ideas and concepts as the synergy effect of
our interdisciplinary communications across hadronic, nuclear and condensed matter physics.
To this end, the new theory group provides a unique opportunity for integrated study of quantum
many-body systems. The members with wide-spread backgrounds and experiences in the ASRC meetand discuss physics of various systems with different scales, expecting outputs which are not achievedin the conventional research platforms. Sharing technical knowledge such as field theoreticaltechniques, computational methods, data science approaches, is a key to accelerating explorations ofindividual physics problems.
We support activities performed within the existing research groups and experimental projects at
the facilities in JAEA, J-PARC, and elsewhere. The group also provides a new platform forinternational collaborations and education for young scientists.
Details of the research theme and expected synergy:
At first it looked as if the individual research fields of the existing groups had little in common.
However, after repeated discussions we have realized that there are indeed many common features.
They are the dynamics governed by non-commutative charges and clustering phenomena. Quarks
interact by the color charges of the SU(3) gauge theory. They also interact by spin-flavor dependent
forces. Nucleons interact primarily by the pion exchange force, which has strong spin and isospin
dependence, as well as the tensor (dipole) nature. Atomic systems accommodate spin of electrons and- 211 -

JAEA-Evaluation 2018-003

also of crystals that are the origin of spin current phenomena, the basis of tremendous amount ofpractical applications in spintronics. Therefore, we expect that exchanging our knowledge with cluster
and non-commutative charge as the key words will enhance our individual research activities andpotentially inspire new ideas and interdisciplinary concepts. In the following we provide examples ofrepresentations of the key words in each field .
• Diquarks are the most microscopic clusters formed by two quarks, which are considered to beimportant sub-constituents of hadrons especially of exotic hadrons. Diquarks are also expected to be
the main ingredient in the super-dense quark-matter. In nuclear physics nucleon pair correlation is ananalogue of the diquark, and is the key to the microscopic description of nuclear properties, such asshell structures and fluidity nature of the nuclear matter. Yet the most prominent cluster is the alphaparticle, which has the longest history in the study of nuclear structure. In heavy nuclei, alpha clusters
may trigger important processes of fissions and fusions.
• The clustering phenomena also play crucial roles in mesoscopic scale in nuclear phenomena, e.g.,
matter with inhomogeneous structures as a liquid-gas mixed phase is expected in the crust of neutronstars. Balance between the surface tension and the Coulomb repulsion determines the structure. We
can see universality in the appearance of similar structures in meson condensation and hadron-quark
phase transitions in high-density hadronic matter.
• In condensed matter physics, a cluster will be a useful degree of freedom in addition to spin, charge,
and orbital motions of electrons, which underlies important research fields such as spintronics. In the
spintronics, the spin-orbit interaction converts a charge current into a spin current and vice versa, i.e.,
spin Hall effect. However, its magnitude is limited by the element consisting in the material and/or
device geometry, i.e., electric field at an interface. On the other hand, cluster degrees of freedom havepotential to enhance the efficiency of spin-charge conversion or to induce yet-to-be consideredcross-correlation effect. For example, some antiferromagnetic metals show anomalous Hall effectwithout magnetization. This phenomenon is understood in terms of a multipole of the spin cluster.
Some frustrated quantum spin systems have an unconventional magnetic excitation interpreted as acluster of magnons. Furthermore, a spin-1/2 cluster may couple to phonons and enable controlling aheat flow by a magnetic field, i.e., phonon Hall effect.
3. Status of Preparation
Prior to this proposal of the theory group, ASRC established a (virtual) group, Theoretical
Physics Institute (TPI) in 2015. In fact, the basic concepts and aims of the TPI have been taken over,
and will be further strengthened by the theory group. To propose the theory group, we have performed
and will plan the following activities in 2018 and in 2019.
• We have organized an intensive series of seminar and discussions once a month from April to Julythis year. Each speaker gave one hour presentation, introducing his/her interests to share them among
members. We heard altogether 14 talks from both senior and young members and from hadron, nuclear
and condensed matter physics. The discussions have been extremely useful because we could ask and- 212 -

JAEA-Evaluation 2018-003

discuss issues of the very elementary and fundamental nature.
• We have been organizing introductory lectures for young members and non-experts. Prof. Oka gave alecture on the Skyrme model two periods (one period is about 90 min.) in May. In September, Prof.
Utsuno delivers a lecture on nuclear structure. Though these lectures are of introductory nature, they
are also quite useful for experts.
• We have proposed a REIMEI project as an activity of the new theory group. This has been approved
as “Universal physics in Many-Body Quantum Systems – From Atoms to Quarks –”. For the PI, we
invite Prof. Hans-Werner Hammer from TU Darmstadt, who is actively working on universal physics
in wide range of systems including of nuclear, hadron and atomic systems. We will organize aworkshop in December as well as short discussions in this fall.
• We invite Prof. Hyun-Chul Kim from Inha University, Korea, as a research fellow from September
1st for 6 months. He is an expert of hadron theory in particular in chiral solitons and skyrmions withapplication to hadron structures. We are strongly expecting to expand our collaborations anddiscussions during his stay.
• As an international collaboration, we have established an MOC with The European Centre for
Theoretical Studies in Nuclear Physics and Related Areas (ECT*). As a collaboration activity we haveapplied for the workshop at ECT* in 2019, which has been approved. We shall discuss universal
physics as an extended opportunity for this year’s REIMEI workshop.
4.

New （or updated） strategy, research plans, and goals for next 3.5 years

Strategy:
To achieve the above objectives, our strategy is twofold;(1) To work individually in their own research field. This follows the conventional research style ofproject-oriented activities, and is meant to support the existing research groups and experimental
researches performed at JAEA, J-PARC and elsewhere.
(2) To discuss and work together for many-body problems in various scales from the viewpoint of
quantum clusters. With this we aim for common new ideas and methods . We expect a synergy effectby sharing members’ wide spread backgrounds covering (a) Quark and hadron physics (Hosaka,
Maruyama, Oka), (b) Nuclear physics (Koura, Utsuno) and (c) Spin energy physics (Mori, Ieda,
Onishi).
Research plans:(1) Identification of the microscopic clusters in hadrons: Experiments are planned at J-PARC forvarious hadron productions. Production mechanism and the relation between reaction rates andstructure will be formulated to extract sub-cluster structures of diquarks and hadronic correlations.
(2) Multiquark clusters in extreme conditions with external fields: This is to investigate dynamical
properties of colorless and colored clusters in high temperature and density with strong fields.
Non-equilibrium dynamical approaches will be developed by utilizing the ideas from condensed
matter physics.

- 213 -

JAEA-Evaluation 2018-003(3) Identification of clustering in nuclei: This is to draw spatial or momentum correlations of nucleonsin nuclei from the nuclear-reaction and structure points of view. A knockout reaction theory will be
developed to probe alpha clustering and pairing correlation, and structure studies will be focused on
spin observables, such as Gamow-Teller and magnetic transitions.
(4) Dynamics of frustrated spin system: This is the place where spin quadrupole moment is developedby a dimer, which is regarded as a cluster unit for spin nematics. Even higher-rank spin multipoles
emerge when the cluster size increases. Spin-orbit coupling would also provide a novel cluster unit
involving both spin and orbital degrees of freedom. In their presence, excitation dynamics andtransport property will be studied.
(5) Spintronics of antiferromagnets: This is to develop novel spintronics of antiferromagnetic materials.
Mechanisms of the formation of cluster multipoles and their consequences on the spin current will be
studied.
(6) New route to functionality: When a heat (phonon) current flows perpendicularly to a magnetic field,
some non-magnetic insulators show a temperature gradient in a third perpendicular direction. This is
the phonon Hall effect (PHE). One possible origin of the PHE is a resonant scattering of phonons by apolar magnetostriction, which is usually limited to heavy elements. However, a cluster degree of
freedom will remove this constraint and extend our choice of materials. Similar ideas will also be
applicable to the spin Hall effect and other phenomena.
Goals:
Our eventual goal is to establish new ideas, concepts, and methods for exploring various quantum
cluster systems. For this purpose, it is of primary importance to keep working on each individual
project in their fields and sharing the outcomes among the interdisciplinary members. Couplings of thecharges of different natures such as spins and angular momenta develop nontrivial dynamics.
Moreover, their couplings with external fields such as magnetic fields provide unique researchlaboratories. Clusters appear in the discussion of universal physics, which is often referred to as
threshold phenomena, and are expected to provide unified description of various physical systems.
5. Uniqueness, advantage, and strategy for international COE
Uniqueness：
It is in the use of the concept of cluster formation in the presence of non-commutative charges.
Clusters have been recognized as building blocks from fundamental constituents to actual matter ofvarious properties. On one hand, strong forces among basic constituents are saturated to form clusters,
resulting in the hierarchies of matters. The cluster formation is a consequence of stability and plays arole of matter formation. On the other hand, as is typical in the condensed matter systems for
spintronics, clusters may become a new unit that provide novel sources of spin degrees of freedom that
can interact with, for example external magnetic fields, and hence be used as means of spintronics. By
studying the two roles of clusters with non-commutative charges on the same footing, we expect
unique outputs.

- 214 -

JAEA-Evaluation 2018-003

Advantages：
An advantage is to utilize the concept of the formation of the clusters and their properties invarious environments. The origin of stability and their novel properties are the issues to be commonly
discussed. Also, the phenomena of spin-orbit coupling and the interaction with external magnetic field
can be used as common tools to explore different physical systems. By deepening the mutual
discussion we will reach universal aspects of physics which we expect to be the key for the
explanation of rich matter world. Moreover we expect to use this opportunity to give hints for thefundamental properties such as color confinement, and also to explore new ideas for applications.
Strategy for international COE:
One of our missions is to provide a platform for the international activities of ASRC. For this, weorganize regularly theory discussion sessions as intellectual and interdisciplinary opportunities in theforms of seminars, lectures, workshops and conferences. We try to invite the world top classresearchers by using various resources, such as the research fellow system at JAEA, and the invitation
programs in JSPS and others. For workshops, we propose REIMEI projects and also others from JSPS
and MEXT. We also plan to have international collaborations with various institutions abroad and toorganize workshops abroad.
Support of young researchers is another mission. We shall use the tenure-track Post-Doctoral
Researcher system at JAEA and also various outside resources, such as the Leading Initiative programof MEXT, postdoc programs of JSPS, to support young scientists. This is crucially important to keep
and expand the activities continuously in the future. We also try to attract graduate students ofdomestic and foreign universities as special research students. To recruit good students, it is importantto keep contact with major universities by the members of the theory group, as is currently so.
6.

Impacts to basic science and human society
At the fundamental level, the non-commutative charges play non-trivial behaviors. The seemingly

most difficult question is the colored dynamics of quarks which are expected to be relevant to thematter properties under extreme conditions. The roles of spin, isospin, orbital angular momentum andtheir couplings are also the issues for yet unexplained problems of nuclear physics. The exploration ofthese issues will solve the fundamental questions of the strong interaction properties as well as theirapplication to practical problems such as nuclear fissions and fusions. In condensed matter physics,
exploration of new types of clusters in crystals with novel spin properties will provide yet unexpected
applications of spintronics, which should contribute a lot to modern innovations.
7. Summary
We propose strong research activities by the new theory group composed by the researchers withdifferent backgrounds, i.e., hadron, nuclear, and condensed matter physics. The keywords arenoncommutative charges and clusters for many-body dynamics. We will develop researches of each- 215 -

JAEA-Evaluation 2018-003

expertise to support the activities of the existing research groups and experimental researches in ASRC.
In addition, as an eventual goal of this new group we are aiming at outputs that will lead to newconcepts and methods of quantum many-body systems.
As one of the important missions of the new research group, we would like to develop a platform
for international physics discussions and collaborations. We will attract not only establishedresearchers but also postdocs and students for training and education for the future human resources ofsciences.

- 216 -

JAEA-Evaluation 2018-003

付録㻌 2
評価結果の意見と助言に対する返答（先端基礎研究センター作成）

Appendix 2
Reply on the Comments and Suggestions in the Evaluation Report (owned by ASRC)- 217 -

This is a blank page.

JAEA-Evaluation 2018-003

Reply on the Comments and Suggestions in the Evaluation Report
1. Managements of ASRC
We sincerely thank the Evaluation Committee for giving us many critical comments and usefulsuggestions on the management of the ASRC.
We appreciate the Committee for evaluating the leadership and operation of the former and current
Directors highly and also for recognizing the “Research First” principle as an appropriate guideline.
We share the concern on the budget situation of the ASRC and will make every effort to improve
the situation. We not only ask the JAEA administration to support the basic science at JAEA, but also
will seek various opportunities for external funding for the research and management.
We will make efforts in keeping and increasing the diversity of the researchers of the Center. We
currently try to appoint a new women tenure member this year. We use every opportunity for
employment, for it is vital for the development of the Center to increase young research staffs and toenhance international activities.
We thank the Evaluation Committee for endorsing the new Advanced Theoretical Physics groupwith an important note that it should not disturb well-going collaborations of the theory and experimentin the current research groups. Indeed, we design this new group as a trans-group activity so that it
becomes a root or a hinge of all the other research groups. Recognizing that the interdisciplinary
collaboration is a key to achieve a breakthrough, the Center is establishing a platform for such active
collaborations among the theorists, so that the theory group enhances the activities of the current six
research groups by introducing new ideas and perspectives. At the same time, we aim to make the theory
group unique and visible to the international scientific community.
The Committee advised that the Director puts more stress on active participation to the other partsof JAEA. Indeed, our research groups already play major roles in several experimental projects at the
TANDEM, and the J-PARC. As for the operation, while the ASRC is not officially involved nor allocatesbudget for the operation, some of our members are assigned as jointly-appointed staffs of the specificoperational divisions. We will further participate the future planning processes for the related researchfacilities at JAEA.
The suggested specific visions directly towards the future of Japanese atomic-energy technology isreally a challenge for us. The atomic energy policy of Japan is currently at an important turning point.
We really need evolutional step forward with a breakthrough idea and innovative technologicaldevelopment. The ASRC is to take a leadership along these missions of JAEA, while we believe thatthe real innovation be emerged from bottom-up spontaneous researches. This is our homework during
the remaining seven-year plan period.

- 219 -

JAEA-Evaluation 2018-003

2. Research Group for Heavy Element Nuclear Science
We are pleased for the supportive comments that we received from the Evaluation Committee on thepresent and prospective research results. Our programs in nuclear physics and atomic/chemical science
are largely based on the tandem facility of JAEA, which allows us to use radioactive target materials
and a wide variety of heavy-ion beams. Our results on fission properties using multi-nucleon transfer
techniques and the first ionization potentials using ISOL, for example, were realized by taking advantageof the features of the tandem facility. A further development of our programs in the region of heavy
elements will be driven by the strong collaboration with ORNL, by obtaining the 254Es. We place ouractivities in the current mid-term plan as the start to explore the “island of stability” located in the superheavy element region. For this we will development the MR-TOF system, a key tool to investigate thisregion.
Our activities in ASRC to develop innovative techniques have a strong potential to advance the
JAEA missions. One of the examples is on the Fukushima issues, where we are proposing a monitoringof the criticality of debris based on the detection high-energy prompt fission gamma-rays, revealed by
us for the first time in neutron-induced fissions. Another important JAEA mission is the development of
the accelerator-driven system (ADS) to reduce the already-existing and newly produced long-lived
nuclear waste. We are providing fission data important for the ADS design, which can be obtained onlyby the new surrogate reaction techniques developed by us.
We have created strong collaboration with the JAEA tandem facility as evidenced by the constructionof new beam lines and equipment to realize our ASRC programs, sometimes using our external budget.
In parallel, we recognize that it is a time do discuss a next generation accelerator, which should haveenough power and stability to produce nuclei of the “island of stability”. As these performances arecommon requirements also for the ADS accelerator, discussion was started in collaboration not onlywith Tandem facility but also with other departments/groups of JAEA (J-PARC, Nuclear Science andEngineering Center, Research Group for Hadron Nuclear Physics). Nuclear data in the region “island ofstability”, such as masses and radioactive decay properties, are crucial benchmarks to improve current
nuclear models, which can be then widely used in atomic energy applications. This is one of theexamples that development and achievement in ASRC can contribute to JAEA missions.
3.

Research Group for Interfacial Reaction Field Chemistry
We are deeply grateful to the evaluation committee for its strongly supportive comments. In

particular, the clear confirmation of our need for specialists on theoretical modeling and microbiology
is very encouraging. We will enhance our effort help JAEA through establishing international
collaboration to address pressing problems arising from Japan’s recent catastrophic event and tocontribute to international efforts on nuclear legacy.

- 220 -

JAEA-Evaluation 2018-003

4. Research Group for Material Physics for Heavy Element Systems
Thank you for your very encouraging comments. In fact, spintronics in heavy element compounds
are exciting field of condensed matter physics. In addition, the decommissioning process in Fukushima
power plant is a very important issue in Japan. As suggested by reviewers, we will try to search for new
interesting materials and electronic properties in heavy element systems, and new useful characterization
method debris for the Fukushima issue.
5.

Research Group for Spin-energy Transformation Science
We are very pleased to know that our efforts and thoughts are accepted, and appreciate the highevaluation given by the reviewers. Still, we have not yet satisfied our results, since there exist missing
pieces, e.g., inverse spin-hydrodynamic generation, mechanical vibration generated by spin current,
nuclear spin Barnett and Einstein-de-Hass effects and so on. We will continue making efforts to obtainmany excellent results with the collaboration of the experimentalists and the theorists under the strong
leadership of Prof. Eiji Saitoh.
6. Research Group for Nanoscale Structure and Function of Advanced Materials
We are sincerely grateful to the evaluation committee for the supportive comments and advice. As
pointed out by the committee, the Research Group for Nanoscale Structure and Function of Advanced
Materials consists of a synthesis team with chemistry background and a characterization team withphysics background and has dealt with both physical and chemical phenomena of a variety of materials
including two-dimensional materials, surfaces and bulk materials with lowered symmetry. Although wehave prepared materials synthesis apparatuses such as CVD and MBE in the last few years, these stillneed further improvement, which will be performed in the next 3.5 years. As characterization methods,
we have unique experimental techniques with quantum beams of positron, neutron, and muon. As theevaluation committee pointed out, our group has made significant contributions to the development of
ultra-slow muon facility. By taking advantage of these experimental techniques in combination withother characterization methods that are available at the University of Tokyo, to which our group leader
belongs, we will try to explore new functions and clarify the underlying mechanism of the exotic
properties realized in nanoscale materials along with further improvement and development of thecurrent apparatuses.
As pointed out by the evaluation committee, our group investigates various physical and chemical
phenomena of a variety of materials. Encouraging the challenges and new ways of thinking of individual
researchers, we will try to focus on some specific issues in a coherent manner, which include effects ofhydrogen on the material properties, hydrogen behavior on the surfaces of and in materials, and- 221 -

JAEA-Evaluation 2018-003

exploration of superconductivity due to artificial structures with lowered symmetry and/or including
foreign elements. To this end, we will perform collaborative work with other groups in ASRC,
particularly the theory group.
7.

Research Group for Hadron Nuclear Physics
We thank the committee for evaluation and comments for our research results and research plans.

As valued by the committee, we will keep the leadership of hadron research at J-PARC and support
young researchers who work at J-PARC with a strong collaboration between theorists andexperimentalists.
As pointed out by the committee, we require a significant amount of budget to construct detectors
for new experiments. To keep and enhance our research activity, we request JAEA to increase theannual research budget.
Concerning J-PARC Heavy-Ion Project, the goal of which is to create dense nuclear matter, we
are having discussion on the project in J-PARC and the Japanese Nuclear Physics Community. As aresult, we are going to submit a Master Plan for Science Council of Japan. We will technically andscientifically develop the project which is characterized by the world’s highest-intensity heavy-ion
beams expected at J-PARC.
8. Research Group for Advanced Theoretical Physics
We appreciate the valuable comments from the evaluation committee. There are four important
points to consider in starting the theory group. We would like to reply to them to clarify and improve
our strategy.
(1) Comment:

the systems should be designed to keep the present highly efficient collaborations

between theorists and experimentalists within each group.
Answer: Indeed we consider this is the most important point. The primary mission of the theory
group is to collaborate with the experimentalists of the six groups, while we also developinterdisciplinary discussions among scientists with different background to create new ideas andconcepts. In return, these achievements should be reflected in their individual fields. We would like tokeep this strategy as our theory group will go on.
(2) Comment: further efforts are recommended to explore more the interdisciplinary topics/problems
of mutual interests.
Answer: This is actually the key issue in the theory group, and is the challenge. To formulate concretescientific subjects, possible key words that interdisciplinarize our discussions are cluster dynamics forhadron and nuclear structures/reactions, universal phenomena in such as phase transitions, and spincorrelations with magnetic interaction for many-body dynamics. To pin down concrete research theme,
we keep discussing by using various opportunities such as seminars, workshops and so on. We also

- 222 -

JAEA-Evaluation 2018-003

keep contact with the grant-in-aid for scientific research on innovative areas, “Clustering as a window
on the hierarchical structure of quantum systems”.
(3) Comment: the new theory group can be extended to contribute also to the other three groups thatwere not mentioned in the presentation:
Answer: We would like to thank the committee for drawing our attention to this point. We agree that
this is an important issue that the new theory group should consider. Considering the limited resourcesin ASRC, we would like to start the theory group activities under the leadership of the three groups.
However, we aim at the theory group open to all groups and members of ASRC.
(4) Comment: it might be better to change the scheme to “structure of quantum many-body systems
and nonequilibrium dynamics”.
Answer: We appreciate the committee for the suggestion of the new scheme. We find it suitable forour individual as well as interdisciplinary discussions. We would like to accept this proposal.
To summarize our reply, the theory group conducts the research of the fundamental sciences related
to the atomic energy. In particular, we support the research projects performed at J-PARC, TANDEM,
and other facilities run by JAEA. We also aim at providing a platform for common discussions in ASRC
and for international collaborations and education of the young generation who will be able to take animportant role in the fields related to atomic energy.㻌

- 223 -

JAEA-Evaluation 2018-003（和訳）

評価結果の意見と助言に対する返答
1．センターの運営
先端基礎研究センターの運営に関する多くの重要なコメントと有用な助言をしていただき、心から感謝いたします。
評価委員会が前センター長と現センター長の運営を高く評価し、「研究第一」の原則を適切と判断していただいたことを感謝します。
我々も予算削減の状況に関しては憂慮しており、改善へ向けて努力していきます。原子力機構本部に機構における基礎科学への援助を要請するとともに、外部資金の獲得に努力します。
センターの研究者のダイバーシティを維持、拡大することに努力します。現在、テニュアの女性研究者の獲得を目指しています。若手研究者の増加と国際的活動の充実がセンターの発展にとって最重要と考えて、すべての機会を捉えて人事を進めます。
新しい「最先端理論物理グループ」の設立をサポートしていただきどうもありがとうございます。同時に、現在よく機能している理論と実験の連携を壊さないようにという、重要なご指摘をいただきました。実際に、新しいグループは既存のグループをまとめる蝶番の役割を果たす横断的なグループと位置づけています。分野横断連携がブレークスルーの鍵となると考えて、理論における分野横断のプラットフォームを形作り、新しいアイディアと目標を与えて現在の 6 グループの研究を発展させるつもりです。また、理論グループをユニークでかつ国際的にもよく見えるグループとすることを目指します。
原子力機構の他の部署への活発な参加を促すようにとセンター長への助言をいただきました。センターの研究グループのいくつかはすでに TANDEM や J-PARC で主要な実験プロジェ
クトに関わってきました。施設の運用においては、センターとして運営したり予算を割いた
りはしていませんが、何人かのメンバーが兼務として運用部門にも関わっています。今後、原子力機構の関連研究施設の将来計画策定などにさらに関わっていきます。
日本や国際社会の原子力技術が抱える問題に直接関わる具体的なビジョンを示すという提言はたいへん挑戦的な課題です。日本の原子力政策は重要な転機にあり、先端的なアイディ
アと革新的な技術開発による革命的な進歩を必要としています。センターはそのような原子力機構のミッションにそって、リーダーシップを発揮することが期待されています。一方、
我々は新の技術革新はボトムアップの自発的研究から生まれると信じています。これは残りの中長期計画期間の宿題です。

- 224 -

JAEA-Evaluation 2018-003

2．重元素核科学研究グループ
本プログラム、すなわち達成した成果と今後予定している研究に対する委員会の好意的な評価に感謝します。当グループの原子核および化学・原子に関する研究は、原子力機構タンデム加速器で得られる様々な重イオンビームと、ここで利用できる多様な放射性同位体標的により支えられ、特徴づけられます。多核子移行反応を用いた核分裂に関する測定、および第１イオン化ポテンシャルの測定は、まさに施設の特徴を活かした成果です。当グループは、
米国オークリッジ国立研究所と協力、254Es 等を入手するなどして重元素科学を推進したいと考えています。今期中期計画中の研究を起点に、 超重元素領域に存在する “安定の島”の開拓を目指します。このため、多重反射型飛行時間測定式質量測定器（MR-TOF）等の開発を行います。
先端基礎研究センターにおける当グループの目的である新原理の追及と革新的な技術開発
は、原子力機構のミッションを加速させることにつながります。例として、福島第一原子力発電所に関する課題があります。燃料デブリの臨界を監視する新しい手法として、我々は核分裂によって放出される高エネルギーガンマ線の検出を提案していますが、これは中性子入射反応で初めて我々が検出に成功したものです。原子力機構の重要な戦略に ADS システムの構築、すなわち原子力発電所で生成される長寿命の核廃棄物を核変換して減容する概念があります。この概念設計に必要な核データを得るため、当グループが開発した新たな代理反応
手法により、ここでしか得られない核分裂データを供給しています。
グループでは、これまでタンデム加速器施設との協力関係を築いてきました。実際に、外部予算資金を獲得するなどして、新たなビームラインや実験装置を開発し、新しい課題に取り組んできました。一方、タンデムの次の世代と位置付ける加速器開発も必要と認識しています。これには“安定の島”を目指すことができるビーム出力と安定性が求められます。加
速器へのこのような要求は、ADS 用の加速器に共通することから、加速器のデザインにあたっては、タンデム施設はもとより、他の研究センター・グループ（J-PARC センター、原子力
基礎工学研究センター、ハドロン原子核物理研究グループ）とも連携した議論を行っています。
“安定の島”を開拓して得られる核データ、例えば原子核質量や崩壊特性、は現在の原子核モデルの信頼性を評価する上で極めて有用で、ここで構築される精度の高い理論は原子力分野に広く貢献するものとなります。この例が示すように、センターで生まれる成果と新技術は、原子力機構のミッションを支えるものとなります。
3．界面反応場化学研究グループ
本グループの研究を強く支援するコメントをいただき、深く感謝いたします。特に、理論計算と微生物専門の人材確保についての強い支持をいただき、非常に感謝します。日本の原子力における喫緊の課題に対しては、研究を加速するとともにその成果を諸外国の原子力問題解決に貢献できるよう、国際協力の構築を通じて、これまで以上に取り組んでいきます。

- 225 -

JAEA-Evaluation 2018-003

4．重元素材料物性研究グループ
課題の推進を強く推奨するコメントに感謝します。実際、重元素化合物のスピンロニクス
は凝縮系物理学の非常に刺激的な領域です。また、福島第一原子力発電所の廃炉措置は非常に日本にとって重要な課題です。評価委員の提案通り、新奇の興味深い物質や電子物性の探索、また福島廃炉措置に有効なデブリ評価法の開発を推進していきます。
5．スピン－エネルギー変換材料科学研究グループ
我々の努力や考えが認められたことを非常に喜んでいるとともに、評価委員により与えられた高評価に感謝しています。ただ、まだ自分たちの結果に満足はしていません。というのも、理想とする目標に到達するには未だ欠けている部分があるからです。例えば、逆スピン
流発電、スピン流による力学運動の創出、核スピンバーネット効果、核スピンアインシュタ
インドハース効果などです。齊藤英治氏の強いリーダーシップのもと、実験と理論が協力して、多くの優れた成果を出すべく努力を続ける覚悟です。
6．ナノスケール構造機能材料科学研究グループ
貴重なコメントをいただきましたことに感謝します。ご指摘いただいたように、本グルー
プは化学を専門とする物質合成チームと物理を専門とする評価チームからなり、2 次元物質
や表面、対称性の低下したバルク物質など多岐にわたる物質の多様な物理・化学現象を扱ってきました。物質合成の手法は、CVD や MBE など整いつつありますが、まだ不十分なところもあり、これからも充実を図る所存です。評価手法として、超低速ミュオンをはじめとする量子ビームを利用した研究は、本グループの大きな特長です。ご指摘いただいたように、
超低速ミュオン装置については当グループも多大な貢献をしてきました。今後も更なる高度化、開発を進め、グループリーダーの所属する東京大学で利用可能な他の研究手段とも組み
合わせることで、ナノスケール構造で実現する特異な物性の探索と発現機構解明を目指して研究を展開する所存です。
ご指摘いただいたように、当グループでは多様な物質・現象の研究を進めていますが、今後も個々の研究者の自由な発想を大切にしつつ、その中でいくつかのテーマについては焦点を絞った研究を展開したいと考えています。特に、単原子層物質・表面に対する水素の影響、
表面や材料中での水素の挙動、対称性の低下や異種元素導入など人工的な構造に誘起される超伝導をはじめとする新規物性の開拓に、積極的に取り組んでいく所存です。その際、他の研究グループ、特に理論グループとも連携を取り、研究を進めたいと考えています。

- 226 -

JAEA-Evaluation 2018-003

7．ハドロン原子核物理研究グループ
評価委員会のグループの研究結果と研究計画に関するコメント、評価に関して感謝いたします。委員会から評価されたように、我々は理論家と実験家の強い協力のもと、J-PARC のハ
ドロン研究を主導し、J-PARC で研究を行う若手研究者をサポートしていきます。
委員会からのコメントのように J-PARC における新たな実験研究を進めるために、検出器建設に多大な予算を使用しており、現在は科研費に依存しています。安定した予算を得るた
めには機構からの予算強化が不可欠です。
高密度核物質を創り出すことを目的とする J-PARC 重イオン計画については、現在、J-PARCと原子核物理コミュニティーの中で計画に関する議論を行っているところです。その結果、来年 2 月の学術会議マスタープラン提出を目指しています。計画に関しては、J-PARC は世界一の高強度重イオンビーム性能が見込まれることから、この高強度という特徴を生かした技
術、科学両面において研究計画を発展させていきたいと思います。
8．先端理論物理研究グループ
評価委員会の方々から貴重なコメントをいただいたことに感謝いたします。理論グループ発足に当たり、考慮すべき 4 点が指摘されました。以下、これらを改善すべく戦略について回答いたします。
（1）コメント： 新たな枠組みは、従来の理論と実験の良好な共同研究体制を維持することが望まれる。
回答： この点は我々が最も重要な点と考えているところです。既存の 6 グループとの共同研究を推進しつつ、一方で異なるバックグラウンドを持つ研究者が分野横断的に活動することで、新たな知見の獲得を目指したいと考えています。そしてその結果が、再びそれぞれの研究に還元され発展につながることを期待しています。このことは、理論グループの基本的な戦略です。
（2）コメント： お互いが議論できる分野横断的な課題をより模索してほしい。
回答： この点が理論グループの活動における鍵であり、チャレンジです。そこでまず、クラスターをキーワードにした議論を進めていきたいと考えています。クラスターはハドロンと原子核の構造・反応、相転移現象などに見られるユニバーサルな性質、スピン相関と磁場との相互作用など様々な多体問題の局面で重要な役割を果たすはずです。セミナーやワーク
ショップを最大限に活用して、具体的な問題設定に向けて継続的に議論を行っていきます。
（3）コメント： 理論グループの活動は、発表で触れていなかった他のグループの研究にも貢献すべきである。
回答： この点をご指摘いただいたことに感謝するとともに、その重要性に関して疑いの余地はなく、理論グループの活動の中でしっかりと対応すべきと考えております。一方で現在の限られた人材のため、理論グループの活動は提案させていただいた 3 グループの主導のもと進めていきたいと考えています。しかしながらその活動は、6 グループ全てに開かれた- 227 -

JAEA-Evaluation 2018-003

ものとなるよう努めてまいります。
（4）コメント： 研究テーマを“structure of quantum many-body systems and nonequilibrium
dynamics”と改めることが望ましい。
回答： このような具体的な提案をいただいたことに感謝いたします。これは、当初より理論グループが描く課題そのものであり、6 グループに亘る研究を推進するとともに分野横断研究を目指す、大きな目標を示すものとしてぜひ採用したいと考えています。
最後にまとめます。理論グループは原子力エネルギーに関連する基礎科学を推進します。
とりわけ、J-PARC、タンデム加速器施設など原子力機構の関連施設における研究をサポートする研究を推進します。そして、国際共同研究と、将来活躍する人材を育成する拠点としての役割に貢献していきます。

- 228 -

国際単位系（SI）
表１．SI 基本単位
SI 基本単位

基本量

名称
記号
長
さメ ートル m
質
量 キログラム kg
時
間
秒
s
電
流ア ンペア A
熱力学温度 ケ ル ビ ン K
物 質 量モル mol
光度 カ ン デ ラ cd

表２．基本単位を用いて表されるSI組立単位の例
SI 組立単位
組立量
名称
記号
面
積 平方メートルm2
体
積 立方メートルm3
速 さ ， 速 度 メートル毎秒m/s
加速度 メートル毎秒毎秒
m/s2
波
数 毎メートルm-1
密 度 ， 質 量 密 度 キログラム毎立方メートル
kg/m3
面
積
密
度 キログラム毎平方メートル
kg/m2
比
体
積 立方メートル毎キログラム
電流
密
度 アンペア毎平方メートル
磁 界 の 強 さ アンペア毎メートル
量 濃 度 (a) ， 濃 度 モル毎立方メートル
質量
濃度 キログラム毎立方メートル輝
度 カンデラ毎平方メートル屈折率 (b) （数字の） １
比 透 磁 率 (b) （数字の） １

乗数
24

10
1021
1018
1015
1012
109
106
103

3

m /kg
A/m2
A/m
mol/m3
kg/m3
cd/m2
1
1

102
101

ヨ

表５．SI 接頭語
記号
乗数
名称
タ
Ｙ
シ
10-1 デ

ゼ
タ
エ ク サ

Ｚ
Ｅ

10-2

ペ
テ

タ
ラ

Ｐ
Ｔ

ギ
メ

ガ
ガ

Ｇ
Ｍ

マイクロ
ノ
10-9 ナコ
10-12 ピ
10-15 フェムト

キ
ロ
ヘ ク ト
デ
カ

ｋ
ｈ
da

10-3
10-6

記号

セ ン チ
ミ
リ

ト
10-18 ア
10-21 ゼ プ ト
10-24 ヨ ク ト

d

c
m
µ
n
p
f
a
z
y

表６．SIに属さないが、SIと併用される単位
名称
記号
SI 単位による値
分
min 1 min=60 s
時
h 1 h =60 min=3600 s（a）量濃度（amount concentration）は臨床化学の分野では物質濃度（substance concentration）ともよばれる。
（b）これらは無次元量あるいは次元１をもつ量であるが、そのことを表す単位記号である数字の１は通常は表記しない。

d
°
’

日
度
分

表３．固有の名称と記号で表されるSI組立単位
SI 組立単位
組立量
他のSI単位による SI基本単位による
名称
記号
表し方
表し方
（ｂ）
平
面
角 ラジアン(ｂ)
rad
m/m
1
（ｂ）
(ｂ)
(c)
2
2
立
体
角 ステラジアン
sr
1
m /m
周
波
数 ヘルツ（ｄ）
Hz
s-1
力
ニュートン
N
m kg s-2
圧力
応
力 パスカル,Pa
N/m2
m-1 kg s-2
エ ネ ル ギ ー , 仕 事 , 熱 量 ジュールJNm
m2 kg s-2
仕 事 率 ， 工 率 ， 放 射 束 ワット
WJ/s
m2 kg s-3
電
荷
電気量 クーロン,
CsA
電 位 差 （ 電 圧 ） , 起 電 力 ボルト
VW/A
m2 kg s-3 A-1
静電
容量 ファラドF
C/V
m-2 kg-1 s4 A2
電
気
抵
抗 オーム
Ω
V/A
m2 kg s-3 A-2
コ ン ダ ク タ ン ス ジーメンス
S
A/V
m-2 kg-1 s3 A2
磁
束 ウエーバWb
Vs
m2 kg s-2 A-1
磁
束
密
度 テスラ
T
Wb/m2
kg s-2 A-1
イ ン ダ ク タ ン ス ヘンリーH
Wb/A
m2 kg s-2 A-2
セ ル シ ウ ス 温 度 セルシウス度(ｅ)℃K
光
束 ルーメンlm
cd
cd sr(c)照度 ルクスlx
m-2 cdlm/m2
Bqs-1
放 射 性 核 種 の 放 射 能 （ ｆ ） ベクレル（ｄ）
吸収線量, 比エネルギー分与,
グレイ
Gy
J/kg
m2 s-2カーマ
線量当量, 周辺線量当量,Sv
J/kg
m2 s-2シーベルト（ｇ）
方向性線量当量, 個人線量当量酸素
活性 カタールkat
s-1 mol

1 d=24 h=86 400 s
1°=(π/180) rad1’=(1/60)°=(π/10 800) rad”1”=(1/60)’=(π/648 000) radha 1 ha=1 hm 2=104m2
L，l 1 L=1 l=1 dm3=103cm3=10-3m3t
1 t=103 kg

秒
ヘクタール
リットル
トン

表７．SIに属さないが、SIと併用される単位で、SI単位で表される数値が実験的に得られるもの
名称
記号
SI 単位で表される数値
電 子 ボ ル ト
ダ ル ト ン
統一原子質量単位

eV
Da
u

天

ua

文

単

位

1 eV=1.602 176 53(14)×10 -19J

1 Da=1.660 538 86(28)×10-27kg
1 u=1 Da

1 ua=1.495 978 706 91(6)×1011m

表８．SIに属さないが、SIと併用されるその他の単位
名称
記号
SI 単位で表される数値
バー
ル bar １bar=0.1MPa=100 kPa=10 5Pa
水銀柱ミリメートル mmHg １mmHg≈133.322Pa(a)SI接頭語は固有の名称と記号を持つ組立単位と組み合わせても使用できる。しかし接頭語を付した単位はもはや
コヒーレントではない。
(b)ラジアンとステラジアンは数字の１に対する単位の特別な名称で、量についての情報をつたえるために使われる。
実際には、使用する時には記号rad及びsrが用いられるが、習慣として組立単位としての記号である数字の１は明示されない。
(c)測光学ではステラジアンという名称と記号srを単位の表し方の中に、そのまま維持している。
(d)ヘルツは周期現象についてのみ、ベクレルは放射性核種の統計的過程についてのみ使用される。
(e)セルシウス度はケルビンの特別な名称で、セルシウス温度を表すために使用される。セルシウス度とケルビンの単位の大きさは同一である。したがって、温度差や温度間隔を表す数値はどちらの単位で表しても同じである。
(f)放射性核種の放射能（activity referred to a radionuclide）は、しばしば誤った用語で”radioactivity”と記される。
(g)単位シーベルト（PV,2002,70,205）についてはCIPM勧告2（CI-2002）を参照。

表４．単位の中に固有の名称と記号を含むSI組立単位の例
SI 組立単位
組立量
SI 基本単位による
名称
記号
表し方
-1
粘
度 パスカル秒
Pa s
m kg s-1
力 の モ ー メ ン ト ニュートンメートル
Nm
m2 kg s-2
表面
張力 ニュートン毎メートル
N/m
kg s-2角
速度 ラジアン毎秒
rad/s
m m-1 s-1=s-1
角
加速度 ラジアン毎秒毎秒
rad/s2
m m-1 s-2=s-2
熱 流 密 度 , 放 射 照 度 ワット毎平方メートル
W/m2
kg s-3
熱 容 量 , エ ン ト ロ ピ ー ジュール毎ケルビン
J/K
m2 kg s-2 K-1
比 熱 容 量 ， 比 エ ン ト ロ ピ ー ジュール毎キログラム毎ケルビン J/(kg K)
m2 s-2 K-1
比 エ ネ ルギ ー ジュール毎キログラム
J/kg
m2 s-2
熱伝
導率 ワット毎メートル毎ケルビン W/(m K) m kg s-3 K-1
体 積 エ ネ ル ギ ー ジュール毎立方メートル J/m3
m-1 kg s-2
電界の強さ ボルト毎メートル
V/m
m kg s-3 A-1
電荷密
度 クーロン毎立方メートル C/m3
m-3 s A
表面
電
荷 クーロン毎平方メートル C/m2
m-2 s A電 束 密 度 ， 電 気 変 位 クーロン毎平方メートル C/m2
m-2 s A誘
電率 ファラド毎メートル
F/m
m-3 kg-1 s4 A2
透磁率 ヘンリー毎メートル
H/m
m kg s-2 A-2
モ ル エ ネ ル ギ ー ジュール毎モル
J/mol
m2 kg s-2 mol-1
モルエントロピー, モル熱容量 ジュール毎モル毎ケルビン J/(mol K) m2 kg s-2 K-1 mol-1
照 射 線 量 （ Ｘ 線 及 び γ 線 ） クーロン毎キログラム
C/kg
kg-1 s A
吸収線
量率 グレイ毎秒
Gy/s
m2 s-3放射
強度 ワット毎ステラジアン
W/srm4 m-2 kg s-3=m2 kg s-3
放射輝
度 ワット毎平方メートル毎ステラジアン W/(m2 sr) m2 m-2 kg s-3=kg s-3
酵 素 活 性濃 度 カタール毎立方メートル kat/m3
m-3 s-1 mol

名称

オングストローム
海
里
バ
ー
ン

Å
Ｍ

１Å=0.1nm=100pm=10-10m
１M=1852m

b

ノ
ネ
ベ

ト
パ
ル

kn
Np
Ｂ

１b=100fm2=(10-12cm) 2 =10-28m2
１kn=(1852/3600)m/s

ル

dB

ッ
ー

デ

シ

ベ

SI単位との数値的な関係は、対数量の定義に依存。

エ

表９．固有の名称をもつCGS組立単位
名称
記号
SI 単位で表される数値
ル
グ erg 1 erg=10-7 J

ダ
ポ

イ
ア

ス
ス

ト ー ク
チ
ル

フ
ガ

ォ

ン dyn 1 dyn=10-5N
ズ P 1 P=1 dyn s cm-2=0.1Pa s
ス St 1 St =1cm2 s-1=10-4m2 s-1
ブ sb 1 sb =1cd cm-2=104cd m-2
ト ph 1 ph=1cd sr cm-2 =10 4lx
ル Gal 1 Gal =1cm s-2=10-2ms-2

マ ク ス ウ エ ルガ
ウス
エルステッド（ ａ）

Mx
G
Oe

1 Mx = 1G cm2=10-8Wb
1 G =1Mx cm-2 =10-4T
1 Oe (103/4π)A m-1（a）３元系のCGS単位系とSIでは直接比較できないため、等号「は対応関係を示すものである。

キ
レ
ラ

名称
ュ
リ
ン

レ
ガ

ト

表10．SIに属さないその他の単位の例
記号
SI 単位で表される数値
ー Ci 1 Ci=3.7×1010Bq

ゲ

ン

ン R
ド rad
ム rem
マ γ

フ
ェ
ル
ミ
メートル系カラット

1 R = 2.58×10-4C/kg

1 rad=1cGy=10-2Gy
1 rem=1 cSv=10-2Sv
1 γ=1 nT=10-9T
1 フェルミ=1 fm=10-15m

ト
標

準

気

1 メートル系カラット = 0.2 g = 2×10-4kg
ル Torr 1 Torr = (101 325/760) Pa
圧 atm 1 atm = 101 325 Pa

カ

ロ

リ

ー

cal

ミ

ク

ロ

ン

µ

大

」

1 cal=4.1858J（｢15℃｣カロリー），4.1868J（｢IT｣カロリー），4.184J（｢熱化学｣カロリー）

1 µ =1µm=10-6m（第8版，2006年）