個人情報
所属学会
日本化学会、日本物理学会、分子科学会、米国物理学会

非常勤講師
お茶の水女子大学（1985 年-1987 年）
上智大学（1987 年）
東京都立大学（1984 年、1996 年）
東京大学（1988 年、1991 年、1993 年、1995 年、1997 年）
大阪大学（1997 年）
東北大学（1997 年）
熊本大学（1999 年）
名古屋大学（1998 年、1999 年、2004 年）
東京工業大学（2001 年）
北海道大学（2011 年）
学協会役員・委員
日本化学会関東支部幹事（1984-1985 年）
日本化学会東海支部常任幹事（1993-1994 年, 1997-1998 年）
日本分光学会東海支部支部長（1999-2000 年）
日本化学会欧文誌編集委員（1985-1986 年）
新エネルギー・産業技術総合開発機構（NEDO）国際共同研究評価委員（1990年）
チバ・ガイギー科学振興財団，選考委員（1993-1996 年）
日本学術振興会特別研究員等審査会専門委員（2000-2001 年）
科学研究費委員会専門委員（2002-2006 年）
CIOST-D35 評価委員（書面審査、2005 年）
東京大学物性研究所付属軌道放射物性研究施設運営委員会委員（1992-1993 年）
東京大学物性研究所共同利用施設専門委員会委員（1997-1998 年, 2001-2002 年,

2007-2008 年)
東京大学物性研究所 物質設計評価施設運営委員会委員（1998-1999 年）

国際会議委員第 3, 4, 5, 6, 7,.8, 9, 10 回日中合同シンポジウム組織委員（1989, 1992, 1995, 1998,
2001, 2004, 2007, 2010）（第 5 回、7 回、９回は日本側代表、6 回、8 回は組織委
員長）
第 5, 6, 7 回日韓共同シンポジウム組織委員（第 6 回、7 回は日本側代表）（1993,
1995,1997）
ISCOM2009、プログラム編集委員（2009）

その他
JPSJ Papers of Editor’s Choice（2005 年、2008 年）
Editor’s Suggestion paper in Phys. Rev. B (2008 年）
BCSJ Award Article（2008 年）

(001) plane

plasmon(111) plane (11-1) planeかった。(BO)2Cl(H2O)3 という２次元金属物質で大きな単結晶が得られたので、図に示す（001）伝導面と傾いた結晶面で反射率を測定することにより、前頁に示すプラズモンピークを観測することに成功した。フレネルの式より導いた誘電関数のスペクトルは実測と非常によく一致している。
K. Yakushi et al., Phys. Rev. B 61, 9891 (2000).

（３）電荷秩序状態の赤外・ラマン分光（2-1）BEDT-TTF 塩の電荷秩序状態におけるラマンスペクトルの解析方法
電荷秩序状態とは右図上のように結晶全体に広がっていた（非局在）電子の波動関数が分子の中に閉じ込められ（局在）て、規則正しく配列している状態のことをいい、この状態を電子の結晶化になぞらえてウィ
グナー結晶と呼ぶことがある。この状態では 0 に近い
価数の分子と淡緑色の円で示す 1+に近い価数の分子とに分かれている。BEDT-TTF 分子では分子の価数に応じて C=C 伸縮振動の振動数が 100 cm-1 以上シフトする。BEDT-TTF にはラマン活性な C=C 伸縮振動が二つあって互いに接近しているために、右図下に示す
-(BEDT-TTF)2RbZn(SCN)4 の電荷秩序状態のラマン
スペクトルは非常に複雑である。13C を中央の C=C 結
合部位に置換した分子を合成して、この領域の振動モードをすべて帰属した。その結果、中央の C=C
伸縮振動は振電相互作用によって 4 つのモードに分裂しているのに対し、5 員環の C=C 伸縮振動は
振電相互作用が小さいために縮退しており、分子のもつ電荷によって２つのモードに分裂していることを明らかにした。この解釈は４分子クラスタ
ー模型によって偏光依存性を含めて再現することができた。この解析方法はすべての BEDT-TTF の
電荷移動塩について適用できる。

charge order
m

metal

metal
charge order

K. Yamamoto et al., Phys. Rev. B 65, 85110 (2002).
K. Suzuki et al., Phys. Rev. B 69, 085114 (2004).
T. Yamamoto et al., J. Phys. Chem. B 109, 15226 (2005).

(2-2) 電子の結晶化に伴う強誘電性
-(BEDT-TTF)2I3 は 135 K で金属から絶縁体へ相転移する分子導体である。絶

縁相では電荷秩序状態になっていることを赤外ラマン分光法によって明らかにしたが、赤外とラマンの交互禁制則が破れていることから、電荷の配列は対称
心を破るような配列をしている。この状態で第二高調波発生（SHG）の実験を行ったところ、下の図のように相転移温度以下で第二高調波の強度が成長してくるのを発見した。この高調波の強度は極めて強く、２次の非線形感受率はレーザー分光で用いられている BBO の 40 倍にも達する。この事実は対称心の破れた電荷配列は光の波長よりも大きな領域にわたってコヒーレントに成長していることを意味している。つまり、巨視的な大きさの自発電気分極が発生している。後に光干渉と SHG 顕微鏡を用いた実験を行って、コヒーレントに成長した分域（ドメイン）の大きさが 0.1 mm 以上にも及ぶことを明らかにした。このことはこの物質が強誘電性を有することを強く示唆している。従来の強誘電性は変位型と秩序・無秩序型に大別できるが、いずれもイオンが強誘電性を担っている。この物質は電子の結晶化に起因する強誘電性であり、従来の強誘電性と異なる新しい型の強誘電体であり、電子強誘電体と呼ばれている。

(a) 金属状態、A と A’は等価である。(b)電荷秩序状態、A と A’が非等価になり、電気双極子が発生する。

第二高調波の強度の温度依存性。
相転移温度以下で成長している。

(2-3) 超伝導相に隣接する絶縁相の電子状態
超伝導相に隣接するモット絶縁体は反強磁性相である。このことから、反強磁性ゆらぎがクーパー対の生成を媒介していると考えられている。電荷秩序系物質でも同様な考えがあり、超伝導相に隣接する絶縁相の電子状態を特定することが求められている。-(DMBEDT-TTF)2PF6
は 100 K 付近から徐々に絶縁化する物質であるが、4 千気圧まで加圧すると 5 K で超伝導相へ転移する。赤外ラマン分光法を用いてこの物質

温度・圧力相図

の絶縁相が電荷秩序状態であることを明らかにした。そして、低温高圧下のラマン分光を我々のグループで行い、電気抵抗と磁気抵抗を東大物性研森初果グ
ループが行って、この物質の温度・圧力相図を作成した。この相図のように、超伝導相に長距離電荷秩序相と短距離電荷秩序相が混在する電子相が隣接している。この実験は電荷秩序ゆらぎが超伝導に関与している可能性を示唆している。
M. Tanaka et al., J. Phys. Soc. Jpn. 77, 024714 (2008).
N. Morinaka et al., Phys. Rev. B 80, 092508 (2009).

（４）相転移に伴う分子内電荷分布の偏り
TTM-TTP は下図の様な細長い分子である。この分子の電荷移動塩(TTM-TTP)I3
は 160 K 付近より徐々に絶縁化する。この温度近傍で単位格子は 2 倍に拡張し、分子は結晶の対称心からはずれる。そして、この温度以下で 5 つの C=C 伸縮振動モードのうち分子の両端の C=C 伸縮振動モードのみが二本に分裂する。これは分子全体で M(1+M(1のように電荷の偏りが起こっているのではなく、分子の上半分と下半分の電荷が非等価になって、分子内の電荷分布が下図のように青い楕円部分に偏っていることを意味している。通常はπ軌道の分子内共鳴
積分は分子間のトランスファー積分に比べてはるかに大きいので、分子の周りの結晶場が非対称になっても、対称的な分子の電荷が偏ることはない。最近、発表された土射津らの理論はこの物質の特殊な状況をよく説明している。この物質の電子状態は破線と実践で描いた two-leg ladder model で記述できるというが、分子の上半分と下半分を結ぶ分子内トランスファー積分よりも、実線で描いた分子間のトランスファ
SCH
ー積分のほうが大きくなっ H CSSSている。この理論はラマン
スペクトルをよく説明する
S
S
のみならず、近赤外領域に
SS
現れる梯子の横木に相当す
S
Sる方向に偏光した電子遷移
SCH
もよく説明する。この理論 H CS
は我々の実験から得られた提案を強く支持している。
3

3

3

3

K. Yakushi et al., Synth. Met. 135, 583 (2003).
R. Swietlik et al., Synth. Met. 150, 83 (2005).
M. Tsuchiizu et al., J. Phys. Soc. Jpn. 80, 013703 (2011).

（５）広い温度領域で二相の共存する相転移
ギブスの相律によると、1 成分 2 相の自由度は 1、つまり、二つの相が共存できる温度は、圧力を決めると、１点しかない。例えば、水と氷が共存できる温度は常圧では 0 ℃のみである。 (npBifc)(F1TCNQ)3 の価数変化相転移（A1+B1→A2+B2）は約 50 K の温度範囲で A1+B1相から A2+B2相への変換が連続的に起こる。このような連続転移はリラクサーやスピンクロスオーバー錯体などで知られているが、これらの物質ではナノメーターサイズのミクロドメインが徐々に転換する事が知られている。ところが、この物質では、相転移温度領域で A1+B1
相と A2+B2相の巨視的な分域が共存していることが X 線回折と顕微ラマン分光法によって明らかになった。この物質の単位格子の体積は A2+B2相で％も収縮する。通常このような大きな体積変化を伴う相転移では結晶の破壊が起って、体積収縮に伴うひずみエネルギーを一挙に解放する。しかし、この物質は相転移温度領域を何回往復させても極めて安定である。つまり、結晶内部に蓄積されたひずみエネルギーが徐々に解消されている。このような考えに基づきギン
ツブルグ・ランダウの自由エネルギー曲線にひずみエネルギーを加えた現象論的な模型を組んで、体積分率の温度依存性を求めた。下図は A2+B2相の体積分率が無次元化した温度に対してどのように変化するかを描いた図である。
この模型は無次元化したひずみエネルギーD を大きくするにつれて、相転移幅が増大する事を再現している。この物質がひずみエネルギーを蓄える事ができる理由はおそらく npBifc 分子がかさ高
く柔軟な分子構造をもっていることに関係していると推測している。
T. Mochida et al, J. Phys. Soc. Jpn. 74, 2214 (2005).
M. Uruichi et al. J. Phys. Soc. Jpn. 76, 124707 (2007).

LIST OF PUBLICATION

Kyuya Yakushi
March 30, 2018
Original Papers
239 Charge and lattice fluctuations in molecule-based spin liquids, T. Yamamoto, T.
Fujimoto, T. Naito, Y. Nakazawa, M. Tamura, K. Yakushi, Y. Ikemoto, T.
Moriwaki, R. Kato, Scientific Reports, 7: 12930 (9) (2017).
DOI:10.1038/s41598-017-13118-4
238 Intra- versus inter-dimer charge inhomogeneity in the triangular latticecompounds of ’-Cs[Pd(dmit)2]2: A degree of freedom characteristic of aninterchange of energy levels in the molecular orbitals, T. Yamamoto, M. Tamura,
K. Yakushi, and R. Kato, J. Phys. Soc. Jpn. 85, 104711 (13) (2016).
DOI.org/10.7566/JPSJ.85.104711
237 Charge order in (TMTTF)2TaF6 by infrared spectroscopy, Y. Oka, N. Matsunaga,
K. Nomura, A. Kawamoto, K. Yamomoto, and K. Yakushi, J. Phys. Soc. Jpn. 84,
114709 (5) (2015). DOI.org/10.7566/JPSJ.84.114709
236 Raman spectroscopy study of charge fluctuation in the spin-liquid candidate
-(BEDT-TTF)2Cu2(CN)3, K. Yakushi, K. Yamamoto, T. Yamamoto, Y. Saito,
and A. Kawamoto, J. Phys. Soc. Jpn. 84, 084711 (5) (2015).
DOI.org/10.7566/JPSJ.84.084711
235 Optical freezing of charge motion in an organic conductor, T. Ishikawa, Y.
Sagae, Y. Naitoh, Y. Kawakami, H. Itoh, K. Yamamoto, K. Yakushi, H. Kishida,
T. Sasaki, S. Ishihara, Y. Tanaka, K. Yonemitsu, and S. Iwai, Nature Commun.
5, 5528-5533 (2014). DOI: 10.1038/ncomms6528
234 Efficient terahertz-wave generation and its ultrafast optical modulation in chargeordered organic ferroelectrics, Hirotake Itoh, Keisuke Itoh, Kazuki Goto,1 Kaoru
Yamamoto, Kyuya Yakushi, and Shinichiro Iwai, Appl. Phys. Lett. 104, 173302(4) (2014). DOI: 10.1063/1.4871735

233 Property of the valence-bond ordering in molecular superconductor with thequasi-triangular lattice, Takashi Yamamoto, Yasuhiro Nakazawa, Masafumi
Tamura, Akiko Nakao, Atsuko Fukaya, Reizo Kato, and Kyuya Yakushi, J.
Phys. Soc. Jpn. 83, 053703 (5) (2014). DOI: 10.7566/JPSJ.83.053703
232 Structural and Physical Properties of (EDO-TTF-Cl)2XF6 (X = As, Sb):
Geometrical Aspects for monosubstituted EDO-TTF(EDO-TTF=4,5-ethylenedioxytetrathiafulvalene), M. Ishikawa, Y. Nakano, M.
Uruichi, A. Otsuka, K. Yakushi, and H. Yamochi, Euro. J. Inorg. Chem.
3941-3948 (2014). DOI:10.1002/ejic.201400128
231 Metallic and Mott insulating spin-frustrated antiferromagnetic states in ionicfullerene complexes with two-dimensional hexagonal C60• packing motif, D. V.
Konarev, S. S. Khasanov, A. Otsuka, M. Maesato, M. Uruichi, K. Yakushi, A. F.
Shevchun, H. Yamochi, G. Saito, R. N. Lyubovskaya, Chem. Eur. J. 20,
7268-7277 (2014). DOI; 10.1002/chem.201304763.
230 Kosterlitz-Thouless-type transition in a charge ordered state of the layeredorganic conductor -(BEDT-TTF)2I3, S. Uji, K. Kodama, K. Sugii, Y. Takahide,
T. Terashima, N. Kurita, S. Tsuchiya, M. Kohno, M. Kimata, K. Yamamoto, andK. Yakushi, Phys. Rev. Lett. 110, 196602 (2013). DOI:
10.1103/PhysRevLett.110.196602
229 Infrared and Raman studies of charge ordering in organic conductors,
BEDT-TTF salts with quarter-filled band, K. Yakushi, Crystals 2, 1291-1346(2012). DOI: 10.3390/cryst2031291
228 Charge transport in charge-ordered states of two-dimensional organic
conductors, -(BEDT-TTF)2I3 and ’-(BEDT-TTF)2IBr2, K. Kodama, M.
Kimata, Y. Takahide, N. Kurita, A. Harada, H. Satsukawa, T. Terashima, S. Uji,
K. Yamamoto, and K. Yakushi, J. Phys. Soc. Jpn. 81, 044703 (7 pages) (2012).
DOI: 10.1143/JPSJ.81.044703
227 Charge-order driven proton arrangement in a hydrogen-bonded charge-transfer
complex based on a pyridyl-substituted TTF derivative, S. C. Lee, A. Ueda, H.
Kamo, K. Takahashi, M. Uruichi, K. Yamamoto, K. Yakushi, A. Nakao, R.
Kumai, K. Kobayashi, H. Nakao, Y. Murakami, and H. Mori, Chem. Commun.
48, 8673-8675 (2012). DOI: 10.1039/C2CC34296K

226 Aromaticity and -bond covalency: prominent intermolecular covalent bonding
interaction of a Kekule hydrocarbon with very significant singlet biradical
character, A. Shimizu, Y. Hirao, K. Matsumoto, H. Kurata, T. Kubo, M. Uruichi,
K. Yakushi, Chem. Commun. 48, 5629-5631 (2012). DOI: 10.1039/c2cc31955a
225 Intradimer charge disporoportionation in Triclinic-EtMe3P[Pd(dmit)2]2 (dmit:
1,3-Dithiole-2-thione-4,5-dithiolate), T. Yamamoto, Y. Nakazawa, M. Tamura,
A. Nakao, Y. Ikemoto, T. Moriwaki, A. Fukaya, R. Kato, and K. Yakushi, J.
Phys. Soc. Jpn. 80, 123709 (4) (2011). DOI: 10.1143/JPSJ.80.123709
224 Synthesis, crystal structure and physical properties of sterically unprotectedhydrocarbon radicals, T. Kubo, Y. Katada, A. Shimizu, Y. Hirao, K. Sato, T.
Takui, M. Uruichi, K. Yakushi, and R. C.Haddon, J. Am. Chem. Soc. 133,
14240-14243 (2011). DOI: 10.1021/ja2065768
223 Vibrational spectra of [Pd(dmit)2] dimer[dmit=1,3-dithiole-2-thione-4,5-ditiolate] ―Methodology for examining charge,
intermolecular interaction and orbital ―, T. Yamamoto, M. Tamura, T.
Fukunaga, A. Fukaya, R. Kato, and K. Yakushi, J. Phys. Soc. Jpn. 80, 074717(16) (2011). DOI: 10.1143/JPSJ.80.074717
222 Vibronic activation of molecular vibrational overtones in the infrared spectra ofcharge-ordered organic conductors, K. Yamamoto, A. A. Kowalska, Y. Yue, andK. Yakushi, Phys. Rev. B 84, 064306 (13) (2011). DOI:
10.1103/PhysRevB.84.064306
221 Infrared and Raman studies of the anion ordering transitions in paramagnticorganometallic radical cation salts [Cp2Mo(dmit)]X (X=PF6, SbF6), R. Swietlik,
D. Jankowski, M. Fourmigue, and K. Yakushi, Vib. Spectrosc. 55, 195-200(2011). DOI: 10.1016/j.vibspec.2010.11.005
220 Spin dynamics of charge carriers in the process of their localization in
’-(BEDT-TTF)2IBr2 single crystals, R. B. Morgunov, A. I. Dmitriev, A. S.
Chernen’kaya, K. Yakushi, K. Yamamoto, and Y. Tanimoto, J. Exp. Theor.
Phys. 111, 857-864 (2010). (JETP) DOI: 10.1134/S1063776110110166

219 Alternating Covalent Bonding Interactions in One-Dimensional Chain of
Phenalenyl-Based Singlet Biradical Molecule Having Kekule Structures, A.
Shimizu, T. Kubo, M. Uruichi, K. Yakushi, M. Nakano, D. Shiomi, K. Sato, T.
Takui, Y. Hirao, K.Matsumoto, H. Kurata, Y. Morita, K. Nakasuji, J. Am. Chem.
Soc. 132, 14421-14428 (2010).
218 Early-stage dynamics of light-matter interaction leading to the insulator-to-metaltransition in a charge ordered organic crystal, K. Kawakami, T. Fukatsu, Y.
Sakurai, H. Unno, H. Itoh, S. Iwai, T. Sasaki, K. Yamamoto, K. Yakushi, and K.
Yonemitsu, Phys. Rev. Lett., 105, 246402 (2010).
217 Field-induced successive phase transitions in the CDW organic conductor
HMTSF-TCNQ, K. Murata, K. Yokogawa, K. Kobayashi, K. Masuda, T. Sasaki,
Y. Seno, N. R. Tamilselvan, H. Yoshino, J. S. Brooks, D. Jerome, K. Bechgaard,
M. Uruichi, K. Yakushi, Y. Nogami, and R. Kato, J. Phys. Soc. Jpn. 79, 103702(2010).
216 Second-Harmonic Generation Study of Ferroelectric Organic Conductors
α-(BEDT-TTF)2X (X=I3 and I2Br), K. Yamamoto and K. Yakushi, MolecularElectronic and Related Materials - Control and Probe with Light, T. Naito, Ed.,
Transworld Research Network, Kerala 185-201 (2010).
215 Non-uniform site charge distribution and fluctuation of charge order in themetallic state of -(BEDT-TTF)2I3, Y. Yue, K. Yamamoto, M. Uruichi, C.
Nakano, K. Yakushi, S. Yamada, T. Hiejima, and A. Kawamoto, Phys. Rev. B,
82 075134 (8) (2010).
214 Reexamination of 13C-NMR in (TMTTF)2AsF6: Comparison with infrared
spectroscopy, S. Hirose, A. Kawamoto, N. Matsunaga, K. Nomura, K.
Yamamoto, and K. Yakushi, Phys. Rev. B, 81, 205107 (6) (2010).
213 Low-temperature far-infrared absorption in the antiferromagntic organic
superconductor-(BETS)2FeBr4,, N. Hossein Khah, G. V. Sudhakar Rao, M.
Reedyk, H. Fujiwara, H. Kobayashi, T. Nakamura, K. Yakushi, M. A. Tanatar,
Phys. Rev. B 81, 092508 (2010).
212 Tuning of multi-instabilities in organic alloy,[(EDO-TTF)1-x(MeEDO-TTF)x]2PF6, T. Murata, X. Shao, Y. Nakano, H.
Yamochi, M. Uruichi, K. Yakushi, G. Saito, and K. Tanaka, Chem. Mater. 22,

3121-3132 (2010).
211 Direct observation of ferroelectric domains created by Wigner crystallization ofelectrons in -[bis(ethylenedithio)tetrathiafulvalene]2I3, K. Yamamoto, A.
Kowalska, and K. Yakushi, Appl. Phys. Lett., 96, 122901 (3) (2010).
210 Terahertz responses of high-temperature metallic phase and photoinduced
metallic state in ferroelectric charge-ordered organic salt, H. Nakaya, K. Itho, Y.
Takahashi, H. Itoh, S. Iwai, S. Saito, K. Yamamoto, and K. Yakushi, Phys. Rev.
B, 81, 15511 (6) (2010)..
209 Evidence for an exchange interaction between donor and acceptor layers in’-(BEDT-TTF)(TCNQ), Y. Eto, A. Kawamoto, N. Matsunaga, K. Kumagai, K.
Yamamoto, and K. Yakushi, Phys. Rev. B, 80, 174506 (5) (2009).
208 Flexibility of paramagnetic (d1) organometallic dithiolene complex[Cp2Mo(dmit)]+• studied by Raman spectroscopy, Roman Świetlik, AndrzejŁapiński, Marc Fourmigué, and Kyuya Yakushi, J. Raman Spectrosc. 40,
2092-2098 (2009).
207 Superconductivity competitive with checkerboard-type charge ordering inorganic conductor -(meso-DMBEDT-TTF)2PF6, N. Morinaka, K. Takabayashi,
R. Chiba, F. Yoshikane, S. Niizeki, M. Tanaka, K. Yakushi, M. Koeda, M. Hedo,
T. Fujiwara, Y. Uwatoko, Y. Nishio, K. Kajita, and H. Mori, Phys. Rev. B, 80,092508 (4) (2009).
206 Resonance Balance Shift in Stacks of Delocalized Singlet Biradicals, Akihiro
Shimizu, Mikio Uruichi, Kyuya Yakushi, Hiroyuki Matsuzaki, Hiroshi Okamoto,
Masayoshi Nakano, Yasukazu Hirao, Kouzou Matsumoto, Hiroyuki Kurata, andTakashi Kubo, Angew. Chem. Int. Ed. 48, 5482-5486 (2009).
205 Charge order-disorder phase transition in ’-(BEDT-TTF)2IBr2, Y. Yue, C.
Nakano, K. Yamamoto, M. Uruichi, R. Wojciechowski, M. Inokuchi, and K.
Yakushi, J. Phys. Soc. Jpn. 78, 044701 (10) (2009).
204 Room Temperature First-Order Phase Transition in a Molecular Conductor(MeEDO-TTF)2PF6, Xiangfeng Shao,P* Yoshiaki Nakano,P Masafumi Sakata,P
Hideki Yamochi,P* Yukihiro Yoshida,P Mitsuhiko Maesato,P Mikio Uruichi,PKyuya Yakushi,PP Tsuyoshi Murata,P Akihiro Otsuka,PP Gunzi Saito,P Shin-ya
Koshihara, Koichiro Tanaka, Chem. Mater., 20, 7551-7562 (2008).

203 Infrared and Raman spectroscopic study of BDA-TTP[1,5-bis(1,3-dithian-2-ylidene)-1,3,4,6-tetrathiapentalene] and its charge-transfer
salts, M. Uruichi, C. Nakano, M. Tanaka, K. Yakushi, T. Kaihatsu, and J.
Yamada, Solid State Commun. 47, 484-489 (2008).
202 Electrical Properties and Electronic States of Molecular Conductors Based on
Unsymmetrical Organometallic-Dithiolene Gold(III) Complexes, Kubo, Kazuya;
Nakao, Akiko; Ishii, Yasuyuki; Yamamoto, Takashi; Tamura, Masafumi; Kato,
Reizo; Yakushi, Kyuya; Matsubayashi, Gen-etsu, Inorg. Chem. 47, 5495-5502(2008).
201 Complex formation between a nucleobase and tetracyanoquinodimethane
derivatives: Crystal structures and transport properties of charge-transfer solidsof cytosine, T. Murata, G. Saito, Y. Enomoto, G. Honda, Y. Shimizu, S. Matsui,
M. Sakata, O. Drozdova, and K. Yakushi, Bull. Chem. Soc. Jpn. 81, 331-344(2008).
200 Strong optical nonlinearlity and its ultrafast response associated with electron
ferroelectricity in an organic conductor, K. Yamamoto, S. Iwati, S. Boyko, A.
Kashiwazaki, F. Hiramatsu, C. Okabe, N. Nishi, and K. Yakushi, J. Phys. Soc.
Jpn. 77, 074709 (6) (2008).
199 30 fs infrared spectroscopy of photo-induced phase transition in 1/4 fillingorganic salt. H. Nakaya, F. Hiramatsu, Y. Kawakami, S. Iwai, K. Yamamoto, andK. Yakushi, J. Luminescence 128, 1065–1068 (2008)
198 Inhomogeneous site-charges at the boundary between the insulating,superconducting, and metallic phases of ”-type ET molecular charge-transfer
salts, (ET=bisethylene-dithiatetrathiafulvalene), T. Yamamoto, H. M.
Yamamoto, R. Kato, M. Uruichi, K. Yakushi, H. Akutsu, A. Sato-Akutsu, A.
Kawamoto, S. S. Turner, and P. Day, Phys. Rev. B, 77, 205120 (14) (2008).
197 Hydrostatic pressure effect on photoinduced insulator-to-metal transition inlayered organic salt -(BEDT-TTF)2I3, S. Iwai, K. Yamamoto, F. Hiramatsu, H.
Nakaya, Y. Kawakami, and K. Yakushi, Phys. Rev. B, 77, 125131 (5) (2008).
196 Infrared and Raman study of the charge-ordeed state in the vicinity of thesuperconducting state in the organic conductor β-(DMBEDT-TTF)2PF6, M.
Tanaka, K. Yamamoto, M. Uruichi, T. Yamamoto, K. Yakushi, S. Kimura, andH. Mori, J. Phys. Soc. Jpn. 77, 024714 (8) (2008).
195 Syntheses and characterizations of acetylene-linked bisphenalenyl andmetallic-like behavior in its charge-transfer complex, T. Kubo, Y. Goto, M.
Uruichi, K. Yakushi, M. Nakano, A. Fuyuhiro, Y. Morita, and K. Nakasuji,
Chem. Asian J. 2, 1370-1379 (2007).
194 Singlet Biradical Character of Phenalenyl-Based Kekulé Hydrocarbon with
Naphthoquinoid Structure, Takashi Kubo, Akihiro Shimizu, Mikio Uruichi,
Kyuya Yakushi, Masayoshi Nakano, Daisuke Shiomi, Kazunobu Sato, Takeji
Takui, Yasushi Morita, and Kazuhiro Nakasuji, Org. Lett., 9, 81-84, (2007).
193 Two-phase coexistence in the monovalent-to-divalent phase transition indineopentylbiferrocene-fluorotetracyanoquinodimethane, (npBifc-(F1TCNQ)3),
charge-transfer salt, M. Uruichi, Y. Yue, K. Yakushi, and T. Mochida, J. Phys.
Soc. Jpn. 76, 124707 (2007).
192 Charge ordered state and frustration of the site-charges in (ET)3Te2I6 and(BETS)2Te2I6, T. Yamamoto, J. Eda, A. Nakao, R. Kato, and K. Yakushi, Phys.
Rev. B. 75, 205132 (17) (2007).
191 Photoinduced melting of stripe-type charge order and metallic-domain formationin layered BEDT-TTF based salt, S. Iwai, K. Yamamoto, A. Kashiwazaki, H.
Nakaya, K. Yakushi, H. Okamoto, and H. Mori, and Y. Nishio, Phys. Rev. Lett.,
98, 09740 (4) (2007).
190 Infrared and Raman study of the charge-ordering phase transition at ~170 K in aquarter-filled narrow-band system, ”-(ET)(TCNQ), M. Uruichi, K. Yakushi, H.
M. Yamamoto, and R. Kato, J. Phys. Soc. Jpn. 75, 074720 (10) (2006).
189 Charge ordering in organic conductors, T. Takahashi, Y. Nogami, and K.
Yakushi, J. Phys. Soc. Jpn. 75, 051008 (17) (2006).
188 Charge ordering state of ”-(ET)3(HSO4) and ”-(ET)3(ClO4)2 bytemperature-dependent infrared and Raman spectroscopy, T. Yamamoto, M.
Uruichi, and K. Yakushi, Phys. Rev. B, 73, 125116 (12) (2006).
187 Evaluation of charge transfer degree in the bis(ethylenethio)tetrathiafulvalene
salts by Raman spectroscopy, A. Kowalska, R. Wojciechowski, J. Ulanski, M.
Mas-Torrent, E. Laukhina, C. Rovira, and K. Yakushi, Synthetic Metals, 156,

75-80 (2006).
186 Synthesis, intermolecular interaction, and semiconductive behavior of adelocalized singlet biradical hydrocarbon, T. Kubo, A. Shimizu, M. Sakamoto,
M. Uruichi, K. Yakushi, M. Nakano, D. Hiomi, K. Sato, Takui, Y. Morita, K.
Nakasuji, Angew. Chem. Int. Ed. 44, 6564-6568 (2005).
185 Infrared and Raman studies of -(BEDT-TTF)2CsZn(SCN)4: Comparison withthe rapidly cooled state of -(BEDT-TTF)2RbZn(SCN)4, K. Suzuki, K.
Yamamoto, K. Yakushi, and A. Kawamoto, J. Phys. Soc. Jpn. 74, 2631-2639(2005).
184 The robust superconducting state in the low-quasiparticle-density organic metals”-(BEDT-TTF)4([(H3O)M(C2O4)3]Y; superconductivity due to proximity to acharge-ordered state, A. F. Bangura, A. I. Coldea, J. Singleton, A. Ardavan, A.
Akutsu-Sato, H. Akutsu, S. S. Turner, P. Day, T. Yamamoto, and K. Yakushi,
Phys. Rev. B, 72, 014543 (13) (2005).
183 Examination of the charge sensitive vibrational modes in ET molecule, T.
Yamamoto, M. Uruichi, K. Yamamoto, K. Yakushi, A. Kawamoto, and H.
Taniguchi, J. Phys. Chem. B 109, 15226-15235 (2005).
182 Infrared and Raman studies of the phase transition in the organic conductor(TTM-TTP)I3, R. Swietlik, K. Yakushi, K. Yamamoto, T. Kawamoto, and T.
Mori, Synthetic Metals 150, 83-92 (2005).
181 Influence of the cooling rate on low-temperature Raman and infrared-reflection
spectra of partially deuterated -(BEDT-TTF)2Cu[N(CN)2]Br, M. Maksimuk, K.
Yakushi, H. Taniguchi, K. Kanoda, A. Kawamoto, Synthetic Metals, 149, 13-18(2005).
180 Bond and charge density waves in the charge localized phase of (DI-DCNQI)2Ag
studied by single-crystal infrared and Raman spectra, K. Yamamoto, K. Yakushi,
M. Meneghetti, and C. Pecile, Phys. Rev. B, 71, 045118 (10) (2005).
179 Infrared and Raman evidence for the charge-ordering inβ˝-(BEDT-TTF)3(ReO4)2, T. Yamamoto, M. Uruichi, K. Yakushi, J. Yamaura,and H. Tajima, Phys. Rev. B, 70, 125102 (11) (2004).

178 Infrared and Raman study of the phase transition of -(ET)2Cu2(CN)[N(CN)2]2,
T. Yamamoto, K. Yakushi, Y. Shimizu, and G. Saito, J. Phys. Soc. Jpn. 73,
2326-2332 (2004).
177 Optical characterization of 2kF bond-charge-density wave inquasi-one-dimensional 3/4-filled (EDO-TTF)2X (X=PF6, and AsF6), O.
Drozdova, K. Yakushi, K. Yamamoto, A. Ota, H. Yamochi, G. Saito, H. Tashiro,
D. B. Tanner, Phys. Rev. B, 70, 075107 (8) (2004).
176 Infrared and Raman studies of TTM-TTP and TSM-TTP charge-transfer salts, R.
Swietlik, K. Yakushi, K. Yamamoto, T. Kawamoto, and T. Mori, J. Mol.
Structure, 704, 89-93 (2004).
175 Charge-ordering transition in two crystal modifications of -(BEDT-TTFR)2TlZn(SCN)4 studied by vibrational spectroscopy, K. Suzuki, K. Yamamoto, and K.
Yakushi, Phys. Rev. B, 69, 085114 (11) (2004).
174 Shear stress effects on electronic spectra on the one-dimensionalbis(diphenylglyoximato)metal(II) complexes, M(dpg)2 [M=Ni and Pt] under highpressure, I. Shirotani, J. Hayashi, K. Hirano, H. Kawamura, M. Inokuchi, K.
Yakushi, and H. Inokuchi, Proc. Japan Acad., 79, Ser B, 267-273 (2003).
173 Charge ordering in the -phase BEDT-TTF salts with Co(CN)6 and Fe(CN)6
anions studied by infrared and Raman spectroscopy, R. Swietlik, A. Lapinski, L.
Ouahab, and K. Yakushi, C. R. Acad. Sci. (Paris) Chimie 3/6, 395-403 (2003).
[Les Compte Rendus de l’Academie de Sciences (Pairs)]
172 High-pressure Raman study of the charge ordering in -(BEDT-TTF)2I3, R.
Wojciechowski, K. Yamamoto, K. Yakushi, M. Inokuchi, and A. Kawamoto,Phys. Rev. B 67, 224105(11) (2003).
171 Study of the phase transitions of (DI-DCNQI)2M (M=Ag, Li, Cu) through theanalysis of the temperature dependent vibronic and vibrational infraredabsorptions. M. Meneghetti, C. Pecile, K. Yakushi, K. Yamamoto, K. Kanoda,
and K. Hiraki, J. Solid State Chem., 168, 632-638 (2002).
170 Optical study of two-dimensional organic metal (EO-TTP)2AsF6(EO-TTP=2-(4,5-ethylenedioxy-1,3-dithiol-2-ylidene)-5-(1,3-dithiol-2-ylidene)1,3,4,6-tetrathiapentalene), O. Drozdova, K. Yakushi, Y. Misaki, and K. Tanaka,
J. Solid State Chem., 168, 497-502 (2002).

169 Electronic states and infrared spectroscopy of nickel and cobalt phthalocyanines:
Ab initio calculations for the neutral and cation state, P. Toman, S. Nespurek, andK. Yakushi, J. Porphyrin and Phthalocyanine, 6, 556-562 (2002).
168 Charge-ordering and magnetic phase transitions in -(BDT-TTP)2Cu(NCS)2, K.
Yakushi, K. Yamamoto, M. Simonyan, J. Ouyang, C. Nakano, Y. Misaki, and K.
Tanaka, Phys. Rev. B, 66, 235102 (5) (2002).
167 Structural phase transition in quasi-1D conductors, (BDTFP)2X(PhCl)0.5 (X=PF6,
AsF6) [BDTFP=5,7-bis(1,3-dithiol-2-ylidene)-5,7-dihydrofuro[3,4-b]pyrazine],
M. Uruichi, K. Yakushi, T. Shirahata, K. Takahashi, T. Mori, and T. Nakamura,
J. Mater. Chem., 12, 2696-2700 (2002).
166 Magnetic Investigation of Possible Quasi-One-dimensional Two-Leg Ladder
Systems, (BDTFP)2X(PhCl)0.5 (X=PF6, AsF6), T. Nakamura, K. Takahashi, T.
Shirahata, M. Uruichi, K. Yakushi, T, Mori, J. Phys. Soc. Jpn., 71, 2022-2030(2002).
165 Raman spectra of (Me2-DCNQI)2CuxLi1-x (0<x<1). The evidence of charge
separation at room temperature in a one-dimensional conductor having aquarter-filled band, T. Yamamoto, H. Tajima, R. Kato, M. Uruichi, and K.
Yakushi, J. Phys. Soc. Jpn., 71, 1956-1964 (2002).
164 Complex formation of ethylenedioxyethylenedithiotetrathiafulvalene(EDOEDT-TTF: EOET) and its self-assembling ability, G. Saito, H. Sasaki, T.
Aoki, Y. Yoshida, A. Otsuka, H. Yamochi, O. O. Drozdova, K. Yakushi, H.
Kitagawa, and T. Mitani, J. Mater. Chem., 12, 1640-1649 (2002).
163 The assignment of the in-plane molecular vibrations of the BDT-TTP
electron-donor molecule based on the polarized Raman and infrared spectra,
where BDT-TTP is 2,5-bis(1,3-dithol-2-ylidene)-1,3,4,6-tetrathiapentalene, J.
Ouyang, K. Yakushi, T. Kinoshita, N. Nanbu, M. Aoyagi, Y. Misaki, and K.
Tanaka, Spectrochim. Acta A, 58, 1643-1656 (2002).
162 Charge ordering in -(BEDT-TTF)2RbZn(SCN)4 studied by vibration
spectroscopy, K. Yamamoto, K. Yakushi, K. Miyagawa, K. Kanoda, and A.
Kawamoto, Phys. Rev. B, 65, 85110 (8) (2002).

161 The C=C stretching vibrations of -(BEDT-TTF)2Cu[N(CN)2]Br and its
deuterated analogues, M. Maksimuk, K. Yakushi, H. Taniguchi, K. Kanoda, and
A. Kawamoto, J. Phys. Soc. Jpn., 70, 3728-3738 (2001).
160 Pressure-induced insulator-to-metal transition and superconductivity in iodanil,
C6I4O2, I. Shirotani, J. Hayashi, K. Yakushi, K. Takeda, T. Yokota, K. Shimizu,
K. Amaya, A. Nakayama, and K. Aoki, Physica B, 304, 6-11 (2001).
159 Composition and structure of the anion layer in the organic superconductor
’-(ET)2Cu2(CN)3: optical study, O. Drozdova, G. Saito, H. Yamochi, K.
Ookubo, K. Yakushi, M. Uruichi, and L. Ouahab, Inorg. Chem., 40, 3265-3266(2001).
158 Preparation and characterization of organic alloy CoxNi1-xPc(AsF6)0.5 (0 x 1),
Y. Ding, M. Simonyan, Y. Yonehara, M. Uruichi, and K. Yakushi, J. Mater.
Chem., 11, 1469-1475 (2001).
157 Angle-resolved photoemission measurements of -(n-pyrrolyl)alkanethiol
self-assembled monolayers using in-situ sample preparation apparatus, S.
Hasegawa, T. Horigome, K. Yakushi, H. Inokuchi, K. Okudaira-Kamiya, N.
Ueno, K. Seki, R. J. Willicut, R. L. McCarley, E. Morikawa, and V. Saile, J.
Electron Spectrosc., 113 101-107 (2001).
156 Crystal Chemistry and Physical Properties of Superconducting and
Semiconducting Charge Transfer Salts of the Type(BEDT-TTF)4[AIMIII(C2O4)3]･PhCN (AI = H3O, NH4, K; MIII = Cr, Fe, Co, Al;
BEDT-TTF =Bis(ethylenedithio)tetrathiafulvalene), Lee Martin, Scott S. Turner,
Peter Day, Philippe Guionneau, Judith A. K. Howard, Dai E. Hibbs, Mark E.
Light, Michael B. Hursthouse, Mikio Uruichi, and Kyuya Yakushi Inorg. Chem.,
40 1363-1371 (2001).
155 Charge ordering and optical transitions of Li2VO5 and NaV2O5, M. J.
Konstantinovic, J. Dong, M. E. Ziaei, B. P. Clayman, J. C. Irwin, K. Yakushi, M.
Isobe, and Y. Ueda, Phys. Rev B, 63, 121102(4) (2001).
154 Hyperfine structure and exchange coupling between local and itinerant magnetic
moments in quasi-one-dimensional organic metal Co0.01Ni0.99Pc(AsF6)0.5, M.
Simonyan, Y. Yonehara, Y. Ding, and K. Yakushi, Phys. Rev. B, 63, 113103(4)(2001).

153 Spectroscopic Studies of Solid Phthalocyanines and their Charge-transfer Salts,
K. Yakushi, M. Simonyan, and Y. Ding, J. Porphyrins Phthalocyanines, 5, 13-24(2001).
152 Raman spectroscopic evidence for the charge disproportionation in aquasi-two-dimensional organic conductor -(BDT-TTP)2Cu(NCS)2, J. Ouyang,
K. Yakushi, Y. Misaki, and K. Tanaka, Phys. Rev. B, 63, 54301(6) (2001).
151 Reflection spectroscopic study of organic conductors, K. Yakushi, Bull. Chem.
Soc. Jpn., 73, 2643-2662 (2000).
150 Optical Properties and Metal-Insulator Transitions in (BEDT-ATD)2X(solvent)(X=PF6, AsF6, BF4; solvent=THF, DHF, DO)[BEDT-ATD=4,11-bis(4’,5’-ethylenedithio-1’,3’-dithiole-2’-ylidene)-4,11-dihydroanthra[2,3-c][1,2,5] thiadiazole], M. Uruichi, Y. Yamashita, and K. Yakushi, J.
Mater. Chem., 10, 2716-2722 (2000).
149 Metal to insulator transition of one-dimensional bis(1,2-benzoquinonedioximato)
platinum(II), Pt(bqd)2, at low temperatures and high pressures, K. Takeda, I.
Shirotani, C. Sekine, and K. Yakushi, J. Phys.: Condens. Matter, 12, L483-L488(2000).
148 A new stable organic metal based on the BEDO-TTF donor and the doubly
charged nitroprusside anion, (BEDO-TTF)4[Fe(CN)5NO], L. V. Zorina , S. S.
Khasanov, R. P. Shibaeva , M. Gener , R. Rousseau , E. Canadell, L. A. Kushch ,E. B. Yagubskii , O. O. Drozdova, and K. Yakushi, J. Mater. Chem., 10 (9)2017–2023 (2000).
147 Synthesis, Characterization, and Magnetic Properties of Intercalation Compoundof 1,10-Phenanthroline with Layered MnPS3, C. Yang, X. Chen, J. Qin, K.
Yakushi, Y. Nakazawa, and K. Ichimura, J. Solid State Chem., 150, 281-285(2000).
146 Pressure-induced insulator-to-metal-to-insulator transitions in one-dimensionalbis(dimethylglyoximato)platinum(II), Pt(dmg)2, K. Takeda, I. Shirotani, and K.
Yakushi, Chemstry of Materials, 12, 912-916 (2000).
145 Determination of the Charge on BEDO-TTF in its Complexes by Raman
Spectroscopy, Olga Drozdova, Hideki, Yamochi, Kyuya Yakushi, Mikio
Uruichi, Sachio Horiuchi, and Gunzi, Saito, J. Am. Chem. Soc., 112, 4436-4442

(2000).
144 The intercalation reaction of 1,10-phenanthroline with layered compound FePS3,
X. Chen, C. Yang, J. Qin, K. Yakushi, Y. Nakazawa, K. Ichimira, J. Solid State
Chem., 150, 258-265 (2000).
143 Observation of Plasmons by Normal-incidence Reflectivity in Two-dimensional
Organic Metals, K. Yakushi, J. Ulanski, H. Yamochi, and G. Saito, Phys. Rev.B,
61, 9891-9894 (2000-I).
142 Estimation of the Site-Energy difference In the crystal of Et4N(DMTCNQ)2, C.
Nakano, K. Yakushi, M. Kohama, K. Ueda and T. Sugimoto, Solid State
Commun. 113, 677-682 (2000).
141 Phase Transition in Narrow-band Organic Metals (BEDT-ATD)2X(solvent)(X=PF6, AsF6, BF4; solvent=THF, DHF, DO), Kyuya Yakushi, Mikio, Uruichi,
and Yoshiro Yamashita, Synthetic Metals, 109, 33-37 (2000).
140 Spectroscopic Study of Isostructural Charge-Transfer Salts: Non-metallic
DMTTA-BF4 and Metallic DMTSA-BF4, J. Ouyang, J. Dong, K. Yakushi , K.
Takimiya, and T. Otsubo, J. Phys. Soc. Jpn. 68, 3708-3716 (1999).
139 Synthesis, crystal structure and properties of the semiconducting molecularcharge-transfer salt (bedt-ttf)2Ge(C2O4)3.PhCN[bedt-ttf=bis(ethylenedithio)tetrathiafulvalene], L. Martin, S. Turner, P. Day, P.
Guionneau, J. A. K. Howard, M. Uruichi, K. Yakushi, J. Mater. Chem., 9,2731-2736 (1999).
138 A Stable Neutral Hydrocarbon Radical: Synthesis, Crystal Structure, andPhysical Properties of 2,5,8-Tri-tert-butyl-phenalenyl, Kosaburo Goto, Takashi
Kubo, Kagetoshi Yamamoto, Kazuhiro Nakasuji, Kazunobu Satob, Daisuke
Shiomi, Takeji Takui, Mari Kubota, Tunetoshi Kobayashi, Kyuya Yakusi, andJianyong Ouyang, J. Am. Chem. Soc., 121, 1619-1620 (1999).
137 Low-Energy Electronic Transition in Organic metal, DMTSA-BF4, J. Ouyang,
K. Yakushi, K. Takimiya, T. Otsubo, H. Tajima, Solid State Commun., 110,
63-68 (1999).
136 Spectroscopic Study of Narrow-Band Metal (BEDT-ATD)2PF6(THF) without
Dimerized Structure, Mikio Uruichi, Kyuya Yakushi, and Yoshiro Yamashita, J.

Phys. Soc. Jpn., 68, 531-538 (1999).
135 Origin of the photoemission intensity oscillation of C60, S. Hasegawa, T.
Miyamae, K. Yakushi, H. Inokuchi, K. Seki, and N. Ueno, Phys. Rev. B, 58,
4927-4933 (1998-II).
134 Two-Dimensional Band Structure of Organic Metals (BDT-TTP)2X (X=SbF6,
AsF6) Studied by Polarized Reflection Spectroscopy, J. Ouyang, K. Yakushi, Y.
Misaki, and K. Tanaka, J. Phys. Soc. Jpn., 67, 3191-3198 (1998).
133 Metallic properties of 1:1 Charge-Transfer Salt,
Dimethyltetraselenoanthracene-tetrafluoroborate (DMTSA-BF4), J. Dong, K.
Yakushi, K.Takimiya, and T. Otsubo, J. Phys. Soc. Jpn., 67, 971-977 (1998).
132 Electrochemical and spectroelectrochemical properties of a new stable composite
film electrode. Platinum phthalocyanine-poly-bisphenol-A-carbonate, I. L.
Kogan and K. Yakushi, Electrochimica Acta, 43, 2053-2060 (1998).
131 Comparison between calculated and measured photoemission specra of C60 thinfilms, S. Hasegawa, T. Miyamae, K. Yakushi, H. Inokuchi, K. Seki, and N.
Ueno, J. Electron Spectrosc., 88, 891-895 (1998).
130 Charge-Transfer Salts of M(mnt)2, (M=Ni, Pd, Pt, Au) with BDNT:
Ferromagnetic Interaction in Conductive (BDNT)2-[Ni(mnt)2], M. Uruichi, K.
Yakushi, Y. Yamashita, and J. Qin, J. Mater. Chem. 8, 141-146 (1998).
129 High-pressure study of one-dimensional phthalocyanine conductor,
NiPc(AsF6)0.5, Y. Yonehara and K. Yakushi, Synthetic Metals, 94, 149-155(1998).
128 New conducting composite material based on a platinum phthalocyanine (PtPc)
charge transfer (CT) salt and poly-bisphenol-A-carbonate (PBC), I. L. Kogan and
K. Yakushi, J. Mater. Chem. 7, 2231-2234 (1997).
127 Spin-glass behaviour of nanocrystalline diamond intercalated with potassium, M.
E. Kozlov, H. Uwe, M. Tokumoto, and K. Yakushi, J. Phys.: Condens. Matter 9,8325-8332 (1997).
126 Electronic Structure and Mott Transition in -(BEDT-TTF)2X Salts, V. A.
Ivanov and K. Yakushi, Physica C 282-287, 1907-1908 (1997).

125 Flux Trapping on Multi-Superconducting Phase PAT12-C60-Rb Composite:
Low-Field Microwave Absorption Study, H. Araki, H. Kajii, K. Tada, A. A.
Zakhidov, K. Yakushi, T. Sekino, K. Niihara, and K. Yoshino, Solid State
Commun., 103, 607-614 (1997).
124 Microwave heating effect on two Josephson-junction systems in granular
PAT12-C60-Rb composites: low-field microwave absorption study, H. Kajii, H.
Araki, A. A. Zakhidov, K. Tada, K. Yakushi, K. Yoshino, Physica C 227,277-284 (1997).
123 New Spiro Donor Molecules: Bis(tetrathiafulvalenyldithio)-methane and-germane, K. Ueda, M. Yamanoha, T. Sugimoto, H. Fujita, A. Ugawa, K.
Yakushi, and K.Kano, Chem. Lett. 461-462, (1997).
122 Electronic structure of -ET2X salts, where "ET" is bis(ethylenedithio)tetrathio)
tetrathiafulvalene (BEDT-TTF) molecue, V. Ivanov, K. Yakushi, and E.
Ugolkova, Physica C 275, 26-36 (1997).
121 Spectroscopic characterization of pressure modified C60, M. E. Kozlov, M.
Tokumoto, and K. Yakushi, Appl. Phys. A, 64 241-245 (1997).
120 Galvanomagnetic, Optical Properties and Ultraviolet Photoelectron Spectra ofPotassium-Oxygen-Graphite Intercalation Compounds, Tetsuo Yamashita,Toshiaki Enoki, Mikio Uruichi, Kyuya Yakushi, Takayuki Miyamae, andTakafumi Miyazaki, J. Phys. Soc. Jpn., 66, 158-168 (1997).
119 ESR Study of High-Pressure Phases of C60 Fullerene, M. E. Kozlov, A. A.
Zakhidov, and K. Yakushi, phys. stat. sol. (b) 197, 187-194 (1996).
118 Synthesis and Properties of a New Ferromagnetic 2,2'-Bipyridine-MnPS3
Intercalation Compound, J. Qin, C. Yang, K. Yakushi, Y. Nakazawa, and K.
Ichimura, Solid State Commun., 100, 427-431 (1996).
117 -d Interaction in Phthalocyanine Conductors, K. Yakushi, T. Hiejima, and H.
Yamakado, "Materials and Measurements in Molecular Electronics" ed. by K.
Kajimura and S. Kuroda, Springer Proceedings in Physics 81, p.203-216 (1996).
116 Multiphase superconductivity in OO-PPV/C60 composite doped by alkali metals.
Low-field microwave absorption and SQUID study, K. Yoshino, A. A.
Zakhidov, H. Kajii, H. Araki, K. Tada, T. Noguchi, T. Ohnishi, K. Yakushi,

Physica C, 264 161-171 (1996).
115 Alkali-metal doping of fullerene-conducting polymer composite: evolution of
conductivity and ESR, H. Araki, A. A. Zakhidov, K. Tada, K. Yakushi, K.
Yoshino, Synthetic Metals, 77, 291-297 (1996).
114 A new metastable superconductor Li2Na2NyC60 prepared from azides, N.
Yamasaki, H. Araki, A. A. Zakhidov, H. Misobuchi, K. Yakushi, and K.
Yoshino, Physica C, 259 265-270 (1996).
113 A key to the understanding of electron-molecular vibration coupling in organic
charge-transfer salts: application of the two-side Hubbard model, M. E. Kozlov,
V. A. Ivanov, and K. Yakushi, J. Phys.: Condens. Matter 8, 1011-1020 (1996).
112 Photoconductivity of Poly(2,5-diheptyloxy-p-phenylene vinylene) in the Air
Atmosphere. Magnetic Field Effect and mechanism of Generation andRecombination of Charge Carriers, E. Frankevich, A. A. Zakhidov, K. Yoshino,
Y. Maruyama, and K. Yakushi, Phys. Rev B, 53, 4498-4508(1996-II).
111 Electronic and Vibronic Structure of Organic Charge-Transfer Salt,
m-BDNT-PF6, J. Dong, K. Yakushi, Y. Yamashita, K. Imaeda, and H. Inokuchi,
phys. stat. sol. (b) 195, 611-625 (1996).
110 Resonant Raman Scattering in Single Crystals of BDNT, BDNT+, and BDNT2+,
V. N. Denisov, A. N. Ivlev, B. N. Mavrin, K. Yakushi, J. Dong, and Y.
Yamashita, Chem. Phys. Lett., 246, 176-182 (1995).
109 Spectroscopic Study of BDNT and its Monocation and Dication Salts, J. Dong,
K. Yakushi, Y. Yamashita, J. Mater. Chem., 5, 1735-1740 (1995).
108 Pressure-induced d- charge transfer in One-dimensional Phthalocyanine
conductors, NiPc(AsF6)0.5 and CoPc(AsF6)0.5, T. Hiejima and K. Yakushi, J.
Chem. Phys., 103, 3950-3959 (1995).
107 Pressure-iduced Charge-Transfer in One-dimensional Phthalocyanine conductor,
NiPc(AsF6)0.5, T. Hiejima and K. Yakushi, Solid State Commun., 95, 661-666(1995).
106 Granular Superconductivity in "Conducting Polymer-Fullerene-Alkali Metal"
Composite, A. A. Zakhidov, H. Araki, K. Tada, K. Yakushi, and K. Yoshino,
Physics Lett. A, 205, 317-326 (1995).

105 Superconductivity in Conducting Polymer-Fullerene Composite doped by Alkali
Metal, H. Araki, A. A. Zakhidov, J. Saiki, N. Yamazaki, K. Yakushi, and K.
Yoshino, J. J. Appl. Phys., 34, L1041-L1044 (1995).
104 Preparation and Properties of Lithium-Doped C60 by Lithium Azide, K. Imaeda,
K. Yakushi, and H. Inokuchi, Fullerene Science and Technology, 3, 545-552(1995).
103 Optical Properties of High-Pressure Phases of C60 Fullerene, M. E. Kozlov andK. Yakushi, J. Phys.: Condens. Matter, 7, L209-L216 (1995).
102 Thermoelectric Power Study on High-Tc Bi-2212 and 2223 Oxides Intercalatedwith Organic Molecules Zincphthalocyanine, Z. J. Huan, J. G. Lin, J. J. Lin, C.
Y. Huang, L. Grigoryan, and K. Yakushi, Physica C, 244, 305-310 (1995).
101 The 130 K Transition in Bi-Oxides Heavily Doped by Iron Phthalocyanine:
Superconductivitiy vs Magnetism. L. Grigoryan, K. Yakushi, and N.
Chakravarty, phys. stat. sol. (b), 187, 205-215 (1995).
100 High Pressure Study on High-Tc (ZnPc)Bi-2223 Oxides. J. G. Lin, C. Y. Huang,
Y. Y. Xue, C. W. Chu, L. Grigoryan, and K. Yakushi, Physica C, 231, 177- 181(1994).
99

Electronic Structure and Transport Properties of AuCl3-GIC, T. Ishii, Y.
Komatsu, K. Suzuki, T. Enoki, A. Ugawa, K. Yakushi, and S. Bandow, Mol.
Cryst. Liq. Cryst., 245, 1-6 (1994).

98

Metal-Semiconductor Transition and Structural Change in (BEDT-TTF)3(ClO4)2.
T. Enoki, K. Tsujikawa, K. Suzuki, A. Uchida, Y. Ohashi, H. Yamakado, K.
Yakushi, and G. Saito, Phys. Rev. B 50, 16287-16294 (1994-II).

97

Superconducting properties of Na-doped C60 prepared from sodium azide. I. I.
Khairullin, K. Imaeda, K. Yakushi, and H. Inokuchi, Physica C, 231, 26-36(1994).

96

Hydrogen Uptake Effects on Structures and Solid State Properties in K3C60, T.
Enoki, Y. Ohtsu, K. Suzuki, K. Imaeda, A. A. Zakhidov, K. Yakushi, K.
Kikuchi, S. Suzuki, and Y. Achiba, Synthetic Metals, 64, 329-333 (1994).

95

X- and Q-band ESR Study of new Poly-CuPc Compounds synthesized underhigh Pressure: The Possibility of Two-dimensional Sheet Polymers, I. I.
Khairullin, I. Shirotani, and K. Yakushi, Synthetic Metals, 64, 217-225 (1994).

94

Structure and solid state properties of stable ring-oxidized conductor
CoPc(AsF6)0.5: Interaction between ring -electrons and cobalt d-electrons. H.
Yamakado, T. Ida, A. Ugawa, K. Yakushi, K. Awaga, Y. Maruyama, K. Imaeda,
and H. Inokuchi, Synthetic Metals, 62, 169-178 (1994).

93

Contribution of Interblock Coupling to Tc in High-Tc Bi-Oxides. L. Grigoryan,
K. Yakushi, A. V. Narlikar, and S. B. Samantha, Modern Physcs Letters B, 8,
251-259 (1994).

92

Role of Double Bi-O Layers in Flux Pinning Properties of Bi-Oxides, L. S.
Grigoryan and K. Yakushi, Physica C, 219, 74-80 (1994).

91

Evolution of Optical Absorption and Superconductivity in Bi-2212 and 2223
Oxides Intercalated by Metal-Phthalocyanines: A Systematical Study as a
Function of Intercalation Level, L. Grigoryan, K. Yakushi, C.-J. Liu, S. Takano,
M. Wakata, and H. Yamauchi, Physica C, 218, 153-163 (1993).

90

Modification of Normal-State Superconducting Properties of High-Tc Oxides via
Treatment by Metal-Phthalocyanines, L. S. Grigoryan, K. Yakushi, A. V.
Narlikar, P. K. Dutta, and S. B. Samanta, Int. J. Modern Phys. B, 8, 615-639(1993).

89

New Superconducting Sodium-Nitrogen-C60 Ternary Compound, K. Imaeda, I. I.
Khairullin, K. Yakushi, M. Nagata, N. Mizutani, H, Kitagawa, and H. Inokuchi,
Solid State Commun., 87, 375-378 (1993).

88

Intercalation of High-Tc Oxides with Organic Molecules, L. S. Grigoryan, Y.
Nakazawa, and K. Yakushi, Advances in Superconductivity V, 287-290 (1993).

87

Ultraviolet photoelectron spectra of C82 and KxC82, S. Hino, K. Matsumoto, S.
Hasegawa, K. Iwasaki, K. Yakushi, T. Morikawa, T. Takahashi, K. Seki, K.
Kikuchi, S. Suzuki, I. Ikemoto, and Y. Achiba, Phys. Rev., B, 48, 8418-8423(1993).

86

Magnetic Properties of TDAE-C60 and TDAE-C70, K. Tanaka, A. A. Zakhidov,
K. Yoshizawa, K. Okahara, and T. Yamabe, K. Yakushi, K. Kikuchi, S. Suzuki,

I. Ikemoto, and Y. Achiba, Phys. Rev. B, 47, 7554-7559 (1993).
85

ESR and Low-Field Microwave Absorption Studies of Potassium Doped C70:
Observation of Possible Metallic State in KxC70., K. Imaeda, K. Yakushi, H.
Inokuchi, K. Kikuchi, I. Ikemoto, S. Suzuki, and Y. Achiba, Solid State
Commun., 84, 1019-1024 (1992).

84

Crystal Structures of Metallic and Insulating Molecular Complexes between
Naphthaceno[5,6-cd:11,12-c'd']bis[1,2]diselenole and
4,8-Bis(dicyanomethylene)-4H,8H-benzo[1,2-c:4,5-c']bis[1,2,5]thiadiazole:(TSeN)(BTDA-TCNQ) and (TSeN)(BTDA-TCNQ)(C6H5Cl), K. Iwasaki, A.
Ugawa, A. Kawamoto, Y. Yamashita, K. Yakushi, T. Suzuki, and T. Miyashi,
Bull. Chem. Soc. Jpn., 65, 3350-3357 (1992).

83

Structure of the Charge-Transfer Complex of (DBTTF)(BTDA-TCNQ), K.
Iwasaki, T. Ida, A. Kawamoto, A. Ugawa, Y. Yamashita, K. Yakushi, and T.
Suzuki, Acta Cryst. C, 48, 1982-1984 (1992).

82

Magnetic Properties of TDAE-C60 and TDAE-C70. A Comparative Study, K.
Tanaka, A. A. Zakhidov, K. Yoshizawa, K. Okahara, T. Yamabe, K. Yakushi, K.
Kikuchi, S. Suzuki, I. Ikemoto, and Y. Achiba, Phys. Letters A, 164, 221-226(1992).

81

Enhanced Isotope Effect in 13C-rich Superconducting MxC60 (M=K, Rb): Support
for Vibronic Pairing, A. A. Zakhidov, K. Imaeda, D. M. Petty, K. Yakushi, H.
Inokouchi, K. Kikuchi, I. Ikemoto, S. Suzuki, and Y. Achiba, Phys. Letters A,
164, 355-361 (1992).

80

Ferromagnetic Interaction in Solid Octabutoxyphthalocyaninato cobalt, H.
Yamakado, K. Yakushi, K. Awaga, Y. Maruyama, T. Nakano, and K. Kasuga,
Mol. Cryst. Liq. Cryst., 218, 219-222 (1992).

79

Microwave Spectroscopy of Fullerene-based Molecular Superconductors in Low
Magnetic Field: MxC60 (M=K, Rb, I2, Ga, In), MxCn (n = 70, 76, 78, 84, 90) andMx(C60)1-y(C70)y (M=K, Rb), A. A. Zakhidov, K. Yakushi, K. Imaeda, H.
Inokuchi, K. Kikuchi, S. Suzuki, I. Ikemoto, and Y. Achiba, Mol. Cryst. Liq.
Cryst., 218, 299-306 (1992).

78

Low Energy Electronic Excitations and Fano Resonance in K Doped C60 from
Raman Scattering Excited at 1.16 eV, R. Danieli, V. Denisov, G. Ruani, R.
Zamboni, C. Taliani, A. A. Zakhidov, A. Ugawa, K. Imaeda, K. Yakushi, H.
Inokuchi, K. Kikuchi, I. Ikemoto, S. Suzuki, and Y. Achiba, Solid State
Commun. 81, 257-260 (1992).

77

Design of an Instrument for Far-Infrared Microspectroscopy using a SR Source,
A. Ugawa, H. Ishii, K. Yakushi, H. Okamoto, T. Mitani, M. Watanabe, K. Sakai,
K. Suzuki, and S. Kato, Rev. Sci. Instr., 63, 1551-1554 (1992).

76

Structure and Property of C60 Single Crystal, I. Ikemoto, K. Kikuchi, K. Saito, S.
Suzuki, Y. Achiba, A. Ugawa, and K. Yakushi, Jpn. J. Appl. Phys., Series 7,
Mechanism of Superconductivity, 367-369 (1992).

75

Reflectance spectra of -(BEDT-TTF)2I3: Electronic Structure of Dimeric
BEDT-TTF Salt. M. Tamura, H. Tajima, K. Yakushi, H. Kuroda, A.
Kobayashi, R. Kato and H. Kobayashi, J. Phys. Soc. Jpn., 60, 3861-3873 (1991).

74

High pressure study on the polarized reflectance spectra of the solid
Perylene-HCBD charge-transfer complex. T. Ida, K. Yakushi, H. Kuroda, H.
Yamochi, and G. Saito, Chem. Phys., 156, 113-123 (1991).

73

Polarized Reflectance Spectra of the Single Crytals of Phthalocyanine Radical,
NiPc(AsF6)0.5, H2Pc(AsF6)0.67, and LiPc. K. Yakushi, T. Ida, A. Ugawa, H.
Yamakado, H. Ishii, and H. Kuroda, J. Phys. Chem., 95, 7636-7641 (1991).

72

Evolution of Superconductivity of KxC60 upon K-doping: Microwave Low-Filed
Signal and ESR Study, A. A. Zakhidov, A. Ugawa, K. Imaeda, K. Yakushi, H.
Inokuchi, K. Kikuchi, I. Ikemoto, S. Suzuki, and Y. Achiba, Solid State
Commun., 79, 939-946 (1991).

71

Metallic Behavior Stable against Peierls Instability on a One-Dimensional
Organic Conductor,
Tetraselenatetracene-Bis(1,2,5-thiadiazoro)tetracyanoquinodimethane,(TSeT)(BTDA-TCNQ), A. Ugawa, K. Iwasaki, A. Kawamoto, K. Yakushi, Y.
Yamashita, and T. Suzuki, Phys. Rev. B 43, 14718-14721 (1991).

70

d- Interaction in Conducting Phthalocyaninatocobalt Hexafluoroarsenate,
CoPc(AsF6)0.5. K. Yakushi, H. Yamakado, T. Ida, and A. Ugawa, Solid State
Commun., 78, 919-923 (1991).

69

Transport and Magnetization Studies of ''(BEDT-TTF)2AuBr2, A. G.
Swanson, J. S. Brooks, M. Tokumoto, A. Ugawa, and K. Yakushi, in "Organic
Superconductivity", ed. by V. Z. Kresin and W. A. Little, Prenum pp. 191-200(1990).

68

Photoelectron spectra of metallic conductive Pt-phthalocyanine radical salts. S.
Hino, K. Matsumoto, H. Yamakado, K. Yakushi, and H. Kuroda, Synthetic
Metals, 32, 301-308 (1989).

67

Pressure dependence of the polarized reflectance spectrum on the solid
charge-transfer complex, perylene-TCNQ: Estimation of the microscopic
parameters. T. Ida, K. Yakushi, and H. Kuroda, J. Chem. Phys., 91, 3450-3455(1989).

66

Preparation, crystal structure, and solid state properties of highly conductive(phthalocyaninato)platinum radical salts: PtPc(ClO4)0.5 and PtPc(AsF6)x. H.
Yamakado, K. Yakushi, N. Kosugi, H. Kuroda, A. Kawamoto, J. Tanaka, T.
Sugano, M. Kinoshita, S. Hino, Bull. Chem. Soc. Jpn. 62, 2267-2272 (1989).

65

Electrochemical prepartion and characterization of the radical salts of(phthalocyaninato)-nickel, NiPc(SbF6)0.5 and NiPc(AsF6)0.5. K. Yakushi, H.
Yamakado, M. Yoshitake, N. Kosugi, H. Kuroda, T. Sugano, M. Kinoshita, A.
Kawamoto, and J. Tanaka, Bull. Chem. Soc. Jpn. 62, 687-696 (1989).

64

Low-Temperature Polarized Reflectance Spectrum of
-Bis(ethylenedithio)-tetrathiafulvalenium Iodide, -(BEDT-TTF)2I3. Estimationof the Band Parameters. M. Tamura, K. Yakushi, H. Kuroda, A. Kobayashi, R.
Kato, and H. Kobayashi, J. Phys. Soc. Jpn. 57, 3229-3247 (1988).

63

Optical and Electrical Properties of di[bis(ethylenedithio)tetrathiafulvalenium]
dithiocyano cuprate (I), Organic Superconductor, (BEDT-TTF)2[Cu(SCN)2]. A.
Ugawa, G. Ojima, K. Yakushi, and H. Kuroda, Phys. Rev., B 38, 5122-5125(1988).

62

Synthesis of Optically Active 2,2'-Diselenocyanato-1,1'-binaphthyl and its
molecular structure. Hypervalent Nature of Divalent Selenium Atom in Crystal
State. S. Tomoda, M. Iwaoka, K. Yakushi, A. Kawamoto, and J. Tanaka, J. Phys.
Org. Chem., 1, 179-184 (1988).

61

Temperature Dependence of the Reflectance Spectrum ofBis(ethylenedithio)-tetrathiafulvalenium Perchlorate, (BEDT-TTF)3(ClO4)2, H.
Tajima, K. Yakushi, H. Kuroda, G. Saito, and T. Mori, Synthetic Metals, 25,
323-331 (1988).

60

Preparation and Characterization of (Tetrabenzoporphyrinato)nickel
Hexafluoroarsenate, (NiTBP)3(AsF6)2(C10H7Cl). A New Type ofMetallomacrocyclic Radical Salts, K. Yakushi, M. Yoshitake, H. Kuroda, A.
Kawamoto, J. Tanaka, T. Sugano, and M. Kinoshita, Bull. Chem. Soc. Jpn., 61,
1571-1576 (1988).

59

Optical Study on Bis(propylenedithio)tetrathiafulvalenium (BPDT-TTF) Salts,
K. Yakushi, T. Ida, H. Tajima, M. Tamura, H. Hayashi, H. Kuroda, A.
Kobayashi, H. Kobayashi, and R. Kato, Synthetic Metals, 24, 301-309 (1988).

58

Reflectance Spectra of the 1:1 Salts of Bis(methylenedithio)tetrathiafulvalene(BMDT-TTF): The estimation of the on-site Coulomb Energy, M. Yoshitake,
K. Yakushi, H. Kuroda, H. Kobayashi, R. Kato, and A. Kobayashi, Bull. Chem.
Soc. Jpn., 61, 1115-1119 (1988).

57

Spectroscopic Evidence for the Inter-Chain Charge-Transfer Interaction in
Copper-Bis(2,5-Dimethyl-N,N'-Dicyanoquinonediimine), Cu(2,5-DM-DCNQI)2,
K. Yakushi, G. Ojima, A. Ugawa, and H. Kuroda, Chem. Lett., 1988, 95-98.

56

Crystal Structure and Polarized Reflectance Spectra of
'-(Bis(ethylenedithio)-tetrathiafulvalenium)2 bromoiodoaurate,
'-(BEDT-TTF)2IAuBr, A. Ugawa, K. Yakushi, H. Kuroda, A. Kawamoto, and
J. Tanaka, Synthetic Metals, 22, 305-315 (1988).

55

Temperature Dependence of the Reflectance Spectra of the Single Crystals ofBis(ethylenedithio)tetrathiafulvalenium Salts, -(BEDT-TTF)3(ReO4)2 and-(BEDT-TTF)2I3, K. Yakushi, H. Kanbara, H. Tajima, H. Kuroda, G. Saito, andT. Mori, , 60, 4251-4257 (1987).

54

Electrocrystallization of Phenothiazine, K. Yakushi, M. Yoshitake, and H.
Kuroda, Bull. Chem. Soc. Jpn., 60, 1519-1520 (1987).

53

EXAFS Study on One-Dimensional Halogen-Bridged Mixed-Metal (Pd,Pt)
Mixed-Valence Complexes, I. Ikemoto, K. Kikuchi, K. Iwai, M. Yamashita, M.
Nomura, K. Asakura, N. Kosugi, K. Yakushi, and H. Kuroda, Bull. Chem. Soc.

Jpn., 59, 3271-3272 (1986).
52

Crystal Structure and Reflectance Spectrum of ''-(BEDT-TTF)2IAuBr, A.
Ugawa, K. Yakushi, H. Kuroda, A. Kawamoto, and J. Tanaka, Chem. Lett., 1986,
1875-1878.

51

Temperature Dependence of the Reflectance Spectra of BEDT-TTF Polyhalides,
K. Yakushi, H. Tajima, H. Kanbara, M. Tamura, H. Kuroda, G. Saito, H.
Kobayashi, R. Kato, and A. Kobayashi, Physica 143B, 463-467 (1986).

50

Synthesis and Crystal Structure of a highly conducting (Phthalocyanato)nickel
Hexafluoroantimonate, (NiPc)2SbF6, K. Yakushi, M. Sakuda, H. Kuroda, A.
Kawamoto, and J. Tanaka, Chem. Lett., 1986, 1161-1164.

49

Crystal Structure of -(BEDT-TTF)3(ReO4)2, H. Kanbara, H. Tajima, S. Aratani,
K. Yakushi, H. Kuroda, G. Saito, A. Kawamoto, and J. Tanaka, Chem. Lett.,
1986, 437-440.

48

Temperature Dependence of the Reflectance Spectrum of -(BEDT-TTF)2I3, H.
Tajima, H. Kanbara, K. Yakushi, H. Kuroda, and G. Saito, Solid State Commun.,
57, 911-914 (1986).

47

Structure and Optical Spectrum of (TMTTF)2IO4: The role of Coulomb
Interaction, K. Yakushi, S. Aratani, K. Kikuchi, H. Tajima, and H. Kuroda, Bull.
Chem. Soc. Jpn. 59, 363-366 (1986).

46

Polarized Reflectance Spectrum of -(BEDT-TTF)2I3 Single Crystal, H. Tajima,
K. Yakushi, H. Kuroda, and G. Saito, Solid State Commun., 56, 159-163 (1985).

45

Polarized Reflectance Spectra of -(BEDT-TTF)2PF6, H. Tajima, K. Yakushi, H.
Kuroda, and G. Saito, Solid State Commun., 56, 251-254 (1985).

44

Low-Temperature and High-Pressure Reflectance Spectra of Benzidine-TCNQ
Charge-Transfer Complex, K. Yakushi, T. Uesaka, and H. Kuroda, Mol. Cryst.
Liq. Cryst., 125, 355-363 (1985).

43

Synthesis, Structure, and Physical Properties of the Charge-Transfer Salts ofDiethyltrimethylene-tetraselenafulvalene, K. Kikuchi, K. Yakushi, H. Kuroda, I.
Ikemoto, K. Kobayashi, Mol. Cryst. Liq. Cryst., 125, 345-353 (1985).

42

Reflectance Spectra of BEDT-TTF Salts, H. Kuroda, K. Yakushi, H. Tajima, andG. Saito, Mol. Cryst. Liq. Cryst., 125, 135-144 (1985).
41

The Crystal Structure of a New Charge-Transfer Salt of
Hexamethylenetetra-tellurafulvalene, (HMTTeF)4(PF6)2, K. Kikuchi, K.
Yakushi, H. Kuroda, I. Ikemoto, K. Kobayashi, M. Honda, C. Katayama, and J.
Tanaka, Chem. Lett., 1985, 419-422.

40

Low-Temperature Reflectance Spectra of Rb-TCNQ Single Crystals, K.
Yakushi, S. Miyajima, T. Kusaka, and H. Kuroda, Chem. Phys. Lett., 114,
168-171 (1985).

39

Evidence for Bipolarons in Pyrrole Polymers, J. C. Scott, J. L. Bredas, J. H.
Kaufman, P. Pfluger, G. B. Street, and K. Yakushi, Mol. Cryst. Liq. Cryst., 118,
163-170 (1985).

38

Reflection and Photoconduction Spectra of the Single Crystals of
Perylene-TCNQ 1:1 and 3:1 Molecular Complexes, K. Ishii, K. Yakushi, H.
Kuroda, and H. Inokuchi, Bull. Chem. Soc. Jpn., 57, 3043-3047 (1984).

37

Low-Temperature Reflectance Spectrum of Benzidine-TCNQ Charge-Transfer
Complex, K. Yakushi and H. Kuroda, Chem. Phys. Lett., 111, 165-170 (1984).

36

The Crystal Structure of Bis(dimethyltrimethylene-tetraselenafulvalenium)
Perrhenate, (DMtTSF)2ReO4, K. Kikuchi, K. Yakushi, H. Kuroda, K. Kobayashi,
M. Honda, C. Katayama, and J. Tanaka, Chem. Lett., 1984, 1885-1888.

35

Temperature Dependence of the Visible Absorption Band of Cu-Phthalocyanine
Single Crystal, Y. Iyechika, K. Yakushi, and H. Kuroda, Chem. Phys., 87,
101-107 (1984).

34

Optical Study of Poly-,'-dimethylpyrrole Perchlorate: Evidence for
Bipolarons, K. Yakushi, L. J. Lauchlan, G. B. Street, and J. L. Bredas, J. Chem.
Phys., 81, 4133-4137 (1984).

33

The Polarized Reflectance Spectrum of a Novel Organic Conductor,(BEDT-TTF)2ClO4(C2H3Cl3)0.5, H. Tajima, K. Yakushi, H. Kuroda, G. Saito, and
H. Inokuchi, Solid State Commun., 49, 769-770 (1984).

32

The Evidence for Bipolaron in Pyrrole Polymer, J. C. Scott, J. L. Bredas, K.
Yakushi, P. Pfluger, G. B. Street, Synthetic Metals, 9, 165-172 (1984).

31

Polaron and Bipolaron in a Polypyrrole: Evolution of the Band Structure andOptical Spectrum upon Doping, J. L. Bredas, J. C. Scott, K. Yakushi, and G. B.
Street, Phys. Rev. B 30, 1023-1025 (1984).

30

Optical Study of Polypyrrole Perchlorate, K. Yakushi, L. J. Lauchlan, T. C.
Clarke, and G. B. Street, J. Chem. Phys., 79, 4774-4778 (1983).

29

Temperature Dependence of the Reflectance Spectra of Highly-Conductive TTF
Salts, H. Kuroda, K. Yakushi, and Y. Cao, Mol. Cryst. Liq. Cryst., 85, 325-336(1982).

28

X-Ray Photoelectron Spectroscopy of TMTSF Complexes, I. Ikemoto, K.
Kikuchi, K. Yakushi, H. Kuroda, and K. Kobayashi, Solid State Commun., 42,
257-259 (1982).

27

The Structure of 7,7a,8,8a-,9,10,16c-hexahydrophenanthro-[3,4-c]-phenanthrene,
I. Ikemoto, Y. Iyechika, K. Yakushi, H. Kuroda, and K. Palewska, Acta
Crystallogr., B 38, 988-

26

(1982).

Structure of Lead Phthalocyanine (triclinic form), Y. Iyechika, K. Yakushi, I.
Ikemoto, and H. Kuroda, Acta Crystallogr., B 38, 766-769 (1982).

25

Delayed Flororescence of TMPD (Tetramethyl-p-phenylenediamine) Crystal, G.
Katagiri, K. Yakushi, H. Kuroda, K. Suga, N. Iwasaki, and M. Kinoshita, Chem.
Phys. Lett., 86, 81-84 (1982).

24

Temperature Dependence of the Reflectance Spectrum of the Single Crystal of
Tetrathiafulvalene-Chloranil, K. Kikuchi, K. Yakushi, and H. Kuroda, Solid
State Commun., 44, 151-154 (1982).

23

Temperature Dependence of the Reflectance Spectrum of (TMTSF)2ClO4, K.
Kikuchi, I. Ikemoto, K. Yakushi, H. Kuroda, and K. Kobayashi, Solid State
Commun., 42, 433-435 (1982).

22

Cryostat for Microspectroreflectometry by use of a Microminiature Refrigerator,
K. Yakushi, H. Kuroda, R. Hollman, and W. A. Little, Rev. Sci. Instrum., 53,
1292-1293 (1982).

21

Polarized Absorption and Reflection Spectra of the Single Crystals of
11,11,12,12-Tetracyano-2,6-naphthoquinodimethane (TNAP) Complexes, K.
Yakushi, Y. Sato, I. Ikemoto, and H. Kuroda, Bull. Chem. Soc. Jpn., 54,

1946-1949 (1981).
20

Low-Temperature Reflection Spectra of the Single Crystals of TCNQ Complex
Salts, K. Yakushi, M. Iguchi, G. Katagiri, T. Kusaka, T. Ohta, and H. Kuroda,
Bull. Chem. Soc. Jpn., 54, 348-357 (1981).

19

Temperature Dependence of the Near-Infrared and Visible Reflectance Spectrumof TTF-TCNQ, Y. Cao, K. Yakushi, and H. Kuroda, Solid State Commun., 35,
739-743 (1980).

18

Temperature Dependence of the Reflectance Spectrum of Tetrathiafulvalene
Iodide, (TTF)I0.71, Y. Cao, K. Yakushi, H. Kuroda, Solid State Commun., 35,
601-605 (1980).

17

Reflection Spectrum of the Single Crystal of Wurster's Blue Perchlorate, Y.
Iyechika, K. Yakushi, and H. Kuroda, Bull. Chem. Soc. Jpn., 53, 603-610 (1980).

16

The Structure of Tetrathiafulvalenium Perchlorate, TTF+ClO4-, K. Yakushi, S.
Nishimura, T. Sugano, H. Kuroda, and I. Ikemoto, Acta Crystallogr., B 36,
358-363 (1980).

15

Low-Temperature Reflection Spectrum of K-TCNQ Single Crystal, K. Yakushi,
T. Kusaka, and H. Kuroda, Chem. Phys. Lett., 68, 139-142 (1979).

14

Polarized Absorption and Reflection Spectra of the Single Crystals of
Benzidine-7,7,8,8-tetracyano-p-quinodimethane Molecuelar Complexes, K.
Yakushi, M. Iguchi, and H. Kuroda, Bull. Chem. Soc. Jpn., 52, 3180-3191(1979).

13

Structure of N,N,N',N'-Tetramethyl-p-phenylenediamine, I. Ikemoto, G. Katagiri,
S. Nishimura, K. Yakushi, and H. Kuroda, Acta Crystallogr., B 35, 2264-2265(1979).

12

Polarized Absorption spectra of Single Crystals of Tetrathiafulvalenium Salts, T.
Sugano, K. Yakushi, and H. Kuroda, Bull. Chem. Soc. Jpn., 51, 1041-1046(1978).

11

The Crystal Structure of the 1:1 Molecular Complex of Phenanthrene and1,2,4,5-Tetracyanobenzene, J. D. Wright, K. Yakushi, and H. Kuroda, Acta
Crystallogr. B 34, 1934-1938 (1978).

10

The Crystal and Molecular Structure of an Orthorhombic Modification of
2,3-Dichloro-1,4-naphthoquinone, I. Ikemoto, K. Yakushi, Y. Naito, and H.
Kuroda, Acta Crystallogr. B 33, 2076-2079 (1977).

9

Solvent Inclusion Effects on the Structure and Electrical Conductivity ofBenzidine-TCNQ Complex, N. Takahashi, K. Yakushi, K. Ishii, and H. Kuroda,
Bull. Chem. Soc. Jpn. 49, 182-187 (1976).

8

The Crystal Structure of Benzidine-s-Trinitrobenzene 1:1 Molecular Complex
Benzene Solvate, K. Yakushi, N. Tachikawa, I. Ikemoto, and H. Kuroda, Acta
Crystallogr. B 31, 738-742 (1975).

7

Benzidine-s-Trinitrobenzene Solvent-Free Molecular Complex, N. Tachikawa,
K. Yakushi, and H. Kuroda, Acta Crystallogr. B 30, 2770-2772 (1974).

6

The Crystal Structures of the Molecular Complexes between Benzidine and7,7,8,8-Tetracyano-p-quinodimethane. III. Benzidine-TCNQ Complex
containing Benzene, K. Yakushi, I. Ikemoto, and H. Kuroda, Acta Crystallogr. B
30, 1738-1742 (1974).

5

The Crystal structures of the Moleculear Complexes between Benzidine and7,7,8,8-Tetracyano-p-quinodimethane. II. The Benzidine-TCNQ Solvent-Free
Complex, K. Yakushi, I. Ikemoto, and H. Kuroda, Acta Crystallogr. B 30,
835-837 (1974).

4

N,N,N',N'-Tetramethylbenzidine-Chloranil (1:1) Complex, K. Yakushi, I.
Ikemoto, and H. Kuroda, Acta Crystallogr. B 29, 2640-2641 (1973).

3

The Crystal Structure of the Molecular Complexes between Benzidine and7,7,8,8-Tetracyano-p-quinodimethane. I. Benzidine-TCNQ Complex containing
Dichloromethane, I. Ikemoto, K. Chikaishi, K. Yakushi, and H. Kuroda, Acta
Crystallogr. B 28, 3502-3506 (1971).

2

The Crystal and Molecular Structure of the N,N,N',N'-Tetramethylbenzidine
Chloranil (2:1) Molecular Complex, K. Yakushi, I. Ikemoto, and H. Kuroda,
Acta Crystallogr. B 27, 1710-1718 (1971).

1

The Refinement of the Crystal Structure of the Perylene-Tetracyanoethylene
Complex, I. Ikemoto, K. Yakushi, and H. Kuroda, Acta Crystallogr. B 26,
800-806 (1970).

Proceedings of International Conference
128Rich variety in the ground states of [Pd(dmit)2]2 salts, and the methodology
for analyzing intra-dimer interactions, inter-dimer interactions and MO levels,
T. Yamamoto, Y. Nakazawa, M. Tamura, K. Yakushi, and R. Kato, Phys.
Status Solidi B 249, 971-974 (2012). DOI 10.1002/pssb.201100685

127

E-mv coupling of vibrational overtone in organic conductors: Relationship to
optical nonlinearities and ferroelectricity, K. Yamamoto, A. A. Kowalska, Y.
Yue, and K. Yakushi, Physica B 407, 1775-1778 (2012).
DOI:10.1016/j.physb.2012.01.027

126

Inhomogeneous ferroelectric polarization in ’-(BEDT-TTF)2IBr2 revealed
by second-harmonic generation microscopy, K. Yamamoto, A. Kowalska, C.
Nakano, and K. Yakushi, Physica B, 405, S363-364 (2010).

125

Charge fluctuation of the superconducting molecular crystals, T. Yamamoto,Y. Nakazawa, R. Kato, K. Yakushi, H. Akutsu, A. S. Akutsu, H. Yamamoto,A. Kawamoto, S. S. Turner, P. Day, Physica B, 405, S237-239 (2010).

124

Order-disorder type of charge-ordering phase transition in narrow-bandwidthcompound, ’-(BEDT-TTF)2IBr2, Y. Yue, K. Yamamoto, C. Nakano, M.
Uruichi, K. Yakushi, M. Inokuchi, T. Hiejima, and A. Kawamoto, Physica B,
405, S232-S236 (2010).

123

Charge disproportionation in semiconducting θ-type salt of BTM-TTP,
Yoshiaki Nakano, Y. Misaki, M. Uruichi, K. Yakushi, H. Yamochi, Physica B,
405, S198-S201 (2010).

122

Non-linear current-voltage characteristics in a-(BEDT-TTF)2I3, K. Kodama,
M. Kimata, Y. Takahide, T. Terashima, H. Satsukawa, A. Harada, K. Hazama,
S. Uji, K. Yamamoto, K. Yakushi, Physica B, 405, S176-S178 (2010).

121

Electronic States of Organic Quasi-Two Dimensional Conductor
’’-(DODHT)2PF6: Charge Ordering and Superconductivity, M. Higa, R.
Kondo, A. Murata, S. Kagoshima, H. Nishikawa, and K. Yakushi, Physica B,
405, S172-S175 (2010).

120

Infrared and Raman studies of -(BEDT-TTF)2MHg(SCN)4 with M=K and
NH4 at low temperature ― the charge ordering fluctuation with breaking of theinversion symmetry, T. Hiejima, S. Yamada, M. Uruichi, and K. Yakushi,
Physica B, 405, S153-S156 (2010).

119

Charge order-disorder phase transition detected by EPR in’-(BEDT-TTF)2IBr2, R. Morgunov, A. Dmitriev, A. Chernenkaya, K.
Yamamoto, K. Yakushi, and Y. Tanimoto, Physica B, 405, S138-S140 (2010).

118

Successive bi-stable quantum phases in HMTSF-TCNQ induced by
filed-sweep, K. Murata, K. Yokogawa, J. S. Brooks, A. Kismarahardja, E.
Steven, M. Kano, Y. Seno, N. R. Tamilselvan, H. Yoshino, T. Sasaki, D.
Jerome, P. Senzier, K. Bechgaard, M. Muruichi, K. Yakushi, Physica B, 405,
S111-S112 (2010).

117

The effect of a methyl group incorporated in EDO-TTF, X. F. Shao, Y.
Nakano, G. Saito, K. Yakushi, S. Koshihara, K. Tanaka, H. Yamochi, Physica
B, 405, S75-78 (2010).

116

Synthesis, crystal structure, and physical property of radical cation salt of
2-(thiopyrana-4-ylidene)-4,5-ethylenedithio-1,3-dithiole (TP-EDTT):(TP-EDTT)2SbF6, Yoshiaki Nakano, Toshiaki Nishi, Mikio Uruichi, Kyuya
Yakushi, Hideki Yamochi, Physica B, 405, S49-S54 (2010).

115

Metal-insulator transition of alloyed radical cation salts, (MexEDO-TTF)2PF6,
T. Murata, X. Shao, Y. Nakano, H. Yamochi, G. Saito, M. Uruichi, K.
Yakushi, K. Tanaka, Physica B, 405, S45-S48 (2010).

114

X-ray and optical studies of one-dimensional bis(dimethylglyoximato)Pd(II),Pd(dmg)2 at high pressures, K. Takeda, S. Sasaki, J. Hayashi, S. Kagami, I.
Shirotani, and K. Yakushi, J. Phys. Conf. Ser. 215, 012065 (5) (2010).

113

Transport properties of HMTSF-TCNQ up to 8 GPa and a novel hysteresisand quantum oscillatory behavior in magnetoresistance in magnetic field up to
31 Tesla, K. Murata, K. yokogawa, J. S. Brooks, a. Kismarahardja, E. Steven,
M. Kano, Y. Seno, N. R. Tamilselvan, H. Yoshino, T. Sasaki, D. Jerome, P.
senzier, K. Bechgaard, M. Uruichi, and K. Yakushi, J. Phys. Conf. Ser. 215,
012064 (5) (2010).

112

Ultrafast THz response of photo-induced insulator to metal transition in
charge ordered organic conductor -(BEDT-TTF)2I3, H. Nakaya, Y.
Takahashi, S. Iwai, K. Yamamoto, K. Yakushi, S. Saito, J. Phys. Conf. Ser.
148, 012039 (4) (2009).

111

Control of metal-insulator transition in (EDO-TTF)2SbF6, M. Maesato, Y.
Nakano, X. Shao, Y. Yoshida, H. Yamochi, G. Saito, A. Moreac, J.-C.
Ameline, E. Collet, M. Uruichi, K. Yakushi, J. Phys. Conf. Ser. 148, 012004(4) (2009).

110

Anion size and isotope effects in (EDO-TTF)2XF6, Y. Nakano, H. Yamochi,
G. Saito, M. Uruichi, and K. Yakushi, J. Phys. Conf. Ser. 148, 012007 (4)(2009).

109

Ferroelectric polarization in α-(ET)2I2Br studied by second-harmonic
generation microscopy, A. A. Kowalska, K. Yamamoto and K. Yakushi, J.
Phys.: Conf. Ser. 132, 012006 (5) (2008).

108

Charge-ordering phase transition in α'-(BEDT-TTF)2IBr2, Y. Yue, C. Nakano,
K. Yamamoto, M. Uruichi, K. Yakushi, and A. Kawamoto, J. Phys.: Conf. Ser.
132, 012007 (7) (2008).

107

Isotope Effect on Metal-Insulator Transition of (EDO-TTF)2XF6 (X=P, As)with Multi-instability of Metallic State, Y. Nakano, H. Yamochi, G. Saito, M.
Uruichi, and K. Yakushi, Solid State Sciences, 10, 1780-1785 (2008).

106

Effects of pressure and shear stress on the absorption spectra of thin films ofpentacene, I. Shirotani, J. Hayashi, K. Takeda, H. Kawamura, M. Inokuchi, K.
Yakushi, H. Inokuchi, Mol. Cryst. Liq. Cryst. 461, 111-122 (2007).

105

Shear stress effect on the absorption spectra of organic thin films under highpressure, I. Shirotani, J. Hayashi, K. Takeda, H. Kawamura, M. Inokuchi, K.
Yakushi, H. Inokuchi, Mol. Cryst. Liq. Cryst. 455, 75-79 (2006).

104

Structural, optical, and electrical properties of one-dimensionalbis(dimethylgyoximato) nickel(II), Ni(dmg)2 at high pressure, K. Takeda, J.
Hayashi, I. Shirotani, H. Fukuda, and K. Yakushi, Mol. Cryst. Liq. Cryst. 460,
131-144 (2006).

103

Unusual electronic state of layered -(ET)2X studied by Raman spectroscopy,
K. Yakushi, K. Suzuki, K. Yamamoto, T. Yamamoto, and A. Kawamoto, J.
Low Temp. Phys., 143, 659-662 (2006).

102

Phase separation in the monovalent-to-divalent phase transition ofbiferrocenium-(F1TCNQ)3, M. Uruichi, K. Yakushi, and T. Mochida, J. Low
Temp. Phys., 143, 655-658 (2006).

101

Incoherent-coherent crossover behavior of electron on -(BEDT-TTF)2X
system, probed by 13C-NMR and optical studies, A. Kawamoto, Y. Honma, K.
Kumagai, K. Yamamoto, and K. Yakushi, J. Low Temp. Phys., 143, 519-522(2006).

100

Shear stress effect on thin films of molecular crystals, M. Inokuchi , Y. Sakka,
K. Yabuuchi, I. Shirotani, J. Hayashi, K. Yakushi, H. Kawamura, H. Inokuchi,
J. Low Temp. Phys., 143, 213-217 (2006).

99

Raman spectroscopic study of Bis(diphenylglyoximato)metal Complexes underhigh pressure, K. Yabuuchi, D. Kawamura, M. Inokuchi, I. Shirotani, J.
Hayashi, K. Yakushi, H. Kawamura, H. Inokuchi, Mol. Cryst. Liq. Cryst. 455,
81-85 (2006).

98

Shear stress effect on the absorption spectra of organic thin films under highpressure, I. Shirotani, J. Hayashi, K. Takeda, H. Kawamura, M. Inokuchi, andK. Yakushi, Mol. Cryst. Liq. Cryst. 455, 75-79 (2006).

97

Vibrational spectra of β”-(ET)3X2 (X=HSO4, ClO4) salts, T. Yamamoto, M.
Uruichi, K. Yamamoto, K. Yakushi, and A. Kawamoto, Synthetic Metals 155,628-630 (2005).

96

Optical studies of shear stress on thin films, M. Inokuchi, A. Nagaoka, I.
Shirotani, H. Kawamura, K. Yakushi, and H. Inokuchi, Synthetic Metals 152,421-424 (2005).

95

Humidity sensitive conductivity of (BEDO-TTF)2Br(H2O)3 as a bulk property,
H. Yamochi, T. Haneda, A. Tracz, J. Ulanski, O. Drozdova, K. Yakushi, and
G. Saito, J. Phys. IV France 114, 591-593 (2004).

94

Charge disproportionate state of BEDT-TTF ”-salts, T. Yamamoto, M.
Uruichi, K. Yakushi, J. Yamaura, H. Tajima, and A. Kawamoto, J. Phys.

(France), 114, 397-399 (2004).
93

Raman studies of the charge ordering and semiconductor-metal phasetransition in polymorphic forms of (BEDT-TTF)2Br1.3I1.1Cl0.6, R.
Wojciechowski, A. Kowalska, J. Ulanski, M. Mas-Torrent, E. Laukhina, C.
Rovira, V. Tkacheva, K. Yamamoto, K. Yakushi, J. Phys. (France), 114,
393-395 (2004).

92

Charge-ordering in -(BEDT-TTF)2MM’(SCN)4 [M=Cs, Rb, Tl, M’= Zn, Co],K. Suzuki, K. Yamamoto, and K. Yakushi, J. Phys. (France), 114, 379-381(2004)..

91

Electron-molecular vibration coupling effect on the Raman spectrum oforganic charge-transfer salts, K. Yamamoto and K. Yakushi, J. Phys. (France),
114, 153-155 (2004).

90

Dynamical Fluctuation of the site-charge density in metallic
”-(BEDT-TTF)(TCNQ), K. Yakushi, M. Uruichi, H. M. Yamamoto, and R.
Kato, J. Phys. (France), 114, 149-151 (2004).

89

Phase transition in the organic conductor (TTM-TTP)I3 studied by infrared andRaman spectroscopies, R. Swietlik, K. Yakushi, K. Yamamoto, T. Kawamoto,and T. Mori, J. Phys. (France), 114, 87-90 (2004).

88

Quantum chemical study of oxidation processes in metal-phthalocyanines, P.
Toman, S. Nespurek, and K. Yakushi, Macromolecular Symposia, 212,327-334 (2004).

87

Infrared and Raman studies of the charge ordering in the organic
semiconductor -[(Et)4N](ET)4Co(CN)6.3H2O, R. Swietlik, L Ouahab, J.
Guillevic, and K. Yakushi, Macromolecular Symposia, 212, 219-224 (2004).

86

Spectroscopic studies of charge-ordering system in organic conductors, K.
Yakushi, K. Yamamoto, R. Swietlik, R. Wojciechowski, K. Suzuki, T.
Kawamoto, T. Mori, Y. Misaki, and K. Tanaka, Macromolecular Symposia,
212, 159-168 (2004).

85

Raman study of charge disproportionation in -(BEDT-TTF)2I3, R.
Wojciechowski, K. Yamamoto, K. Yakushi, A. Kawamoto, Synthetic Metals
135-136, 587-588 (2003).

84

Charge disproportionation in the charge-transfer salts of TTP, K. Yakushi, R.
Swietlik, K. Yamamoto, T. Kawamoto, T. Mori, Y. Misaki, and K. Tanaka,
Synthetic Metals 135-136, 583-585 (2003).

83

Charge distribution and molecular arrangement in (DI-DCNQI)2Ag studied byhigh-pressure vibrational spectroscopy, K. Yamamoto, K. Yakushi, K. Hiraki,
T. Takahashi, K. Kanoda, M. Meneghetti, and C. Pecile, Synthetic Metals
135-136, 563-564 (2003).

82

Charge ordering in -(BEDT-TTF)2TlM(SCN)4 (M=Co and Zn) studied byvibrational spectroscopy, K. Suzuki, K. Yamamoto, and K. Yakushi, Synthetic
Metals 135-136, 525-526 (2003).

81

Insulator to metal transition and electronic spectra ofbis(1,2-benzoquinonedioximato)- platinum(II), Pt(bqd)2 at high pressure, K.
Takeda, I. Shirotani, and K. Yakushi, Synthetic Metals, 133-134, 415-416(2003).

80

Characterization of quasi-1D conductors, (BDTFP)2X(PhCl)0.5 (X=PF6, AsF6),
M. Uruichi, K. Yakushi, T. Shirahata, K. Takahashi, T. Mori, and T.
Nakamura, Synthetic Metals, 133-134, 407-409 (2003).

79

Thermoelectric power and Raman spectra of (Me2DCNQI)2CuxLi1-x, T.
Yamamoto, H. Tajima, R. Kato, M. Uruichi, and K. Yakushi, Synthetic Metals,
133-134, 291-292 (2003).

78

Charge ordering and phase transition in -(BDT-TTP)2Cu(NCS)2, K. Yakushi,
K. Yamamoto, J. Ouyang, M. Simonyan, C. Nakano, Y. Misaki, and K.
Tanaka, Synthetic Metals, 133-134, 287-289 (2003).

77

Spectroscopic study of the [0110] charge ordering in (EDO-TTF)2PF6, O.
Drozdova, K. Yakushi, A. Ota, H. Yamochi, and G. Saito, Synthetic Metals,
133-134, 277-279 (2003).

76

Vibrational spectra of BEDT-TTF based 2D charge ordering systems, K.
Yamamoto, K. Yakushi, K. Miyagawa, K. Kanoda, A. Kawamoto, J. Yamaura,
and T. Enoki, Synthetic Metals, 133-134, 269-272 (2003).

75

Effect of uniaxial strain in organic superconductor -(BEDT-TTF)2Cu(NCS)2,
T. Mizutani, M. Tokumoto, T. Kinoshita, J. S. Brooks, Y. Uwatoko, O.
Drozdova, K. Yakushi, I. Tamura, H. Kobayashi, T. Mangetsu, J. Yamada, and
K. Ishida, Synthetic Metals, 133-134, 229-231 (2003).

74

Infrared study of the properties of the normal (metallic) phase of -(ET-13C4)2
Cu(CN)[N(CN)2], O. Drozdova, K. Yakushi, H. Yamochi, G. Saito, and D. B.
Tanner, Synthetic Metals, 133-134, 119-121 (2003).

73

Charge disproportionation and its ordering pattern in  and  types of
BEDT-TTF salts studied by Raman and infrared spectroscopy, K. Yamamoto,K. Yakushi, M. Inokchi, M. Kinoshita, G. Saito, Mol. Cryst. Liq. Cryst., 380,
221-226 (2002).

72

Formation of mixed crystal system CoxNi1-xPc(AsF6)0.5, Y. Ding, M.
Simonyan, Y. Yonehara, M. Uruichi, K. Yakushi, Mol. Cryst. Liq. Cryst., 380,
283-287 (2002).

71

Charge order in -(BDT-TTP)2Cu(NCS)2, K. Yakushi, J. Ouyang, M.
Simonyan, Y. Misaki, K. Tanaka, Mol. Cryst. Liq. Cryst., 380, 53-59 (2002).

70

Synthesis and properties of -extended TTF analogues and their cation radical
and dication salts, Y. Yamashita, M. Tomura, M. Uruichi, and K. Yakushi,
Mol. Cryst. Liq. Cryst., 376, 19-24 (2002).

69

Charge transfer degree of BO complexes, O. Drozdova, H. Yamochi, K.
Yakushi, M. Uruichi, G. Saito, Mol. Cryst. Liq. Cryst., 376, 135-140 (2002).

68

Magnetic Properties of Organic Spin-Ladder Systems, (BDTFP)2X(PhCl)0.5, T.
Nakamura, K. Takahashi, T. Ise, T. Shirahata, M. Uruichi, K. Yakushi, T.
Mori, Mol. Cryst. Liq. Cryst., 376, 95-100 (2002).

67

Novel Inorganic-organic magnet: intercalation compound of -aminopyridine
into layered MnPS3, C. Yang, X. Chen, J. Qin, K. Yakushi, Y. Nakazawa, K.
Ichimura, Y. Liu, Synthetic Metals, 121, 1802-1803 (2001).

66

Nanocomposite system of N-methylstilbazoliums intercalated into lamellar
FePS3, X. Chen, C. Yang, J. Qin, M. Inokuchi, Y. Fujii, M. Kinoshita, K.
Yakushi, K. Ichimura, Y. Liu, Synthetic Metals, 121, 1307-1308 (2001).

65

Study of the phase transitions of (DI-DCNQI)2X using vibronic and vibrational
spectra, M. Meneghetti, C. Pecile, K. Kanoda, K. Hiraki, and K. Yakushi,
Synthetic Metals 120, 1091-1092 (2001).

64

Low temperature X-ray and ESR study of Quasi-1D DMTCA-BF4 (C=S, Se)with half-filled band, T. Kambe, N. Fujimura, Y. Nogami, K. Oshima, K.
Yakushi, J. Dong, K. Takimiya, T. Otsubo, Synthetic Metals, 120, 931-932(2001).

63

Phase diagrams of (DMe-DCNQI)2Li1-xCux system, T. Yamamoto, H.
Hanasaki, J. Yamaura, S. Aonuma, H. Tajima, K. Yakushi, M. Uruichi, and R.
Kato, Synthetic Metals, 120, 873-874 (2001).

62

Raman spectroscopy as a method of determination of the charge on BO in its
complexes, O. Drozdova, H. Yamochi, K. Yakushi, M. Uruichi, S. Horiuchi,
and G. Saito, Synthetic Metals, 120, 739-740 (2001).

61

Phase transition of -(BDT-TTP)2Cu(NCS)2, J. Ouyang, K. Yakushi, Y.
Misaki, and K. Tanaka, Synthetic Metals, 120, 843-844 (2001).

60

Electronic ground state of -(BEDT-TTF)2RbZn(SCN)4 studied by Raman
spectroscopy, K. Yamamoto and K. Yakushi, Synthetic Metals, 120, 791-792(2001).

59

Observation of plasmons in 2-D organic metal BO2.4I3 by reflection
spectroscopy, J. Ulanski, K. Yakushi, H. Yamochi, and G. Saito, Synthetic
Metals, 120, 721-722 (2001).

58

Electronic structures of organic salt DMTSA-BF4 using photoelectron
spectromicroscopy, Y. Haruyama, T. Kinoshita, K. Takimiya, T. Otsubo, C.
Nakano, and K. Yakushi, J. Electron Spectrosc., 114-116, 1013-1018 (2001).

57

Electron paramagnetic resonance study of magnetic ordering in MnPS3,
Mn0.79PS3(4,4'-bipy)(0.42) and Mn0.84PS3(1,10-Phen)(0.64) compounds, M. K.
Bhide, R. M. Kadam, M. D. Sastry, J. Qin, C. Yang, K. Yakushi, Y.
Nakazawa, K. Ichimura, A. K. Sra AK, J. V. Yakhmi, Mol. Cryst. Liq. Cryst.,
341, 923-928 (2000).

56Electron magnetic resonance studies of the intercalation ferromagnet 2,2'-bipyridine-MnPS3 above and below Curie temperature, M. K. Bhide, M. D.
Sastry, J. Qin, C. Yang, K. Yakushi, Y. Nakazawa, K. Ichimura, A. K. Sra, J.
V. Yakhmi, Mol. Cryst. Liq. Cryst. 348, 295-300 (2000).

55

Preparation of a new nanocomposite of conducting polyaniline into layered
MnP3. D. Zhang, J. Qin, K. Yakushi, Y. Nakazawa, and K. Ichimura, Materials
Science and Engineering, A286, 183-187 (2000).

54

BEDT-TTF being inserted into a layered MnPS3, C. Yang, J. Qin, K. Yakushi,
Y. Nakazawa, and K. Ichimura, Synthetic Metals, 102, 1482-1482 (1999).

53

Optical Properties of '-(BEDT-TTF)2IBr2, M. Inokuchi, K. Yakushi, M.
Kinoshita, and G. Saito, Synthetic Metals, 103, 2101-2102 (1999).

52

Optical Spectra of Phthalocyanine Salts, Y. Yonehara and K. Yakushi,
Synthetic Metals, 103, 2214-2215 (1999).

51

Temperature-dependent Reflection Spectra of Metallic (BEDT-ATD)2X(THF)(X=PF6, AsF6), M. Uruichi, K. Yakushi, and Y. Yamashita, Synthetic Metals,
103, 2206-2206 (1999).

50

Band Structure of (BDT-TTP)2X (X=SbF6, AsF6, ClO4) Studied by Reflection
Spectroscopy, J. Ouyang, K. Yakushi, Y. Misaki, and K. Takimiya, Synthetic
Metals, 103, 2207-2207 (1999).

49

Metallic properties of 1:1 Charge-Transfer Salt DMTSA-BF4, K. Yakushi, J.
Dong, J. Ouyang, K. Takimiya, T. Otsubo, and H. Tajima, Synthetic Metals,
103, 2208-2209 (1999).

48

Competition between electron-correlation in NiIII states and electron-phonon
interaction in PdII-PdIV mixed-valence states in quasi-one-dimensional
halogen-bridged mixed-metal complexes, Ni1-xPdx(chxn)2Br3, T. Manabe, M.
Yamashita, T. Kawashima, H. Okamoto, H. Kitagawa, T. Mitani, K. Toriumi,
H. Miyamae, K. Inoue, K. Yakushi, Proceedings of SPIE, 3145, 106-115(1998).

47

Compressibility and high-pressure electrical resistivity of one-dimensional
phthalocyanine conductors: the relationship with d- charge transfer, T.
Hiejima, K. Yakushi, T. Adachi, O. Shimomura, K. Takeda, I. Shirotani, K.

Imaeda, and H. Inokuchi, Mol. Cryst. Liq. Cryst., 296, 255-268 (1997).
46

Low-field microwave absorption and ESR in "conducting
polymer-fullerene-alkali metal" superconductors: comparative study of various
host matrices, H. Kajii, H. Araki, A. A. Zakhidov, K. Yakushi, and K.
Yoshino, Synthetic Metals, 86, 2351-2352 (1997).

45

Preparation and study of high-pressure phases of C60 fullerene, M. E. Kozlov,
M. Tokumoto, and K. Yakushi, Synthetic Metals, 86, 2349-2350 (1977).

44

Competition between Electron-Correlation in Ni(III) and Electron-LatticeInteraction in Pd(II)-Pd(IV) in Mixed-Metal MX-Chain, Ni1-xPdx(chxn)2Br3, T.
Manabe, T. Kawashima, M. Yamashita, H. Okamoto, H. Kitagawa, T. Mitani,
M. Inokuchi, and K. Yakushi, Synthetic Metals, 86, 2233-2234 (1997).

43

Electron-molecular vibration coupling in organic charge-transfer salts:
application of spectroscopic and Hubbard models, M. E. Kozlov, V. A. Ivanov,K. Yakushi, and M. Tokumoto, Synthetic Metals, 86, 2177-2178 (1977).

42

Pressure and Temperature Dependence of the Electrical Resistivity ofOne-dimensional Phthalocyanine Conductor, NiPc(AsF6)0.5, T. Hiejima and K.
Yakushi, Synthetic Metals, 86, 2185-2186 (1997).

41

Compressibility of One Dimensional Phthalocyanine Conductors,
NiPc(AsF6)0.5 and CoPc(AsF6)0.5, T. Hiejima, K. Yakushi, T. Adachi, O.
Shimomura, and I. Shirotani, Synthetic Metals, 86, 2167-2168 (1997).

40

Pressure-Induced Charge Transfer in Phthalocyanine Conductors, K. Yakushi
and T. Hiejima, Synthetic Metals, 86, 2137-2138 (1997).

39

Electron-electron correlation with particular attention to m-BDNT-PF6: spin
susceptibility, V. A. Ivanov, K. Yakushi, and J. Dong, Synthetic Metals, 86,
2107-2108 (1997).

38

Synthesis and Ferromagnetism of a New Intercalation Compound:
Mn0.86PS3(bipy)0.56, J. Qin, C. Yang, K. Yakushi, Y. Nakazawa, K. Ichimura,and D. Liu, Synthetic Metals, 85, 1673-1674 (1997).

37

Superconductivity in charge transfer complexes of C60, A. Otsuka, G. Saito,
A. A. Zakhidov, and K. Yakushi, Synthetic Metals, 85, 1459-1460 (1997).

36

Characterization of the half-filled DMTSA-BF4 by optical and magnetic
measurements, J. Dong, K. Yakushi, K. Takimiya, and T. Otsubo, Synthetic
Metals, 84, 633-634 (1997).

35

Alkali Metal Doping to C60 CT Complexes, A. Otsuka, G. Saito, A. Zakhidov,
K. Yakushi, M. Kusunoki, and K. Sakaguchi, Mol. Cryst. Liq. Cryst., 285,187-192 (1996).

34

A Search for New Ionic C60 Charge Transfer Complexes, A.Otsuka, G.Saito,
T.Teramoto, Y.Sugita, T.Ban, A.A.Zakhidov, and K.Yakushi, Mol. Cryst. Liq.
Cryst., 284, 345-356 (1996).

33

Spectroscopic Studies on BDNT Having a Property of One-Step Two-Electron
Oxidation: BDNT0, BDNT1+, and BDNT2+, K.Yakushi, J.Dong, M.Uruichi,
and Y.Yamashita, Mol. Cryst. Liq. Cryst., 284, 223-234 (1996).

32

Superconducting properties of Na-doped C60 prepared from sodium azide. I. I.
Khairullin, K. Imaeda, K. Yakushi, and H. Inokuchi, Synthetic Metals, 70,
1369-1370 (1995).

31

Magnetic and structure characterization of superconducting sodium-doped C60
prepared with the thermal decomposition of sodium azide. K. Imaeda, I. I.
Khairullin, K. Yakushi, and H. Inokuchi, Synthetic Metals, 70, 1375-1376(1995).

30

Far-infrared reflectance of ”-(BEDT-TTF)2AuBr2: co-existence of free
carriers and a single-particle gap at 2=130 cm-1. A. Ugawa, D. B. Tanner, andK. Yakushi, Synthetic Metals, 70, 979-980 (1995).

29

Pressure Dependence of the Infrared and Visible Spectra of
Metallophthalocyanine Salts. T. Hiejima and K. Yakushi, Synthetic Metals, 71,
2305-2306 (1995).

28

Characterization of Poly-CuPc Sheet Polymers Synthesized under High
Pressure, K. Yakushi, I. Shirotani, I. I. Khairullin, Y. Nakazawa, K. Kanoda,
N. Kosugi, S. Takeda, Synthetic Metals, 71, 2289-2290 (1995).

27

Fermi Surface and Magnetoresistance in an Organic Metal
"-(BEDT-TTF)2AuBr2, S. Uji, H. Aoki, M. Tokumoto, A. Ugawa, and K.
Yakushi, Mat. Res. Symp. Proc. 328, 337-342 (1994).

26

ESR and low-field microwave absorption study of sodium-doped C60:
peculiarities of the doping using sodium azide. I. I. Khairullin, K. Imaeda, K.
Yakushi, and H. Inokuchi, Advanced Materials ‘93 I/B, 1259-1262 (1993).

25

Preparation and characterization of NaxC60 using sodium azide, K. Imaeda, I. I.
Khairullin, K. Yakushi, and H. Inokuchi, Advanced Materials ‘93 I/B,
1255-1258 (1993).

24

Photoelectron Spectra of Higher Fullerene Compound C82 and its Potassium
Complex, S. Hino, K. Matsumoto, S. Hasegawa, K. Iwasaki, K. Yakushi, T.
Morikawa, T. Takahashi, K. Seki, K. Kikuchi, S. Suzuki, I. Ikemoto, Y.
Achiba, Synthetic Metals, 55-57, 3191-3195 (1993).

23

Air Stability of K3C60 Superconductors: Low Field Microwave Absorption and
ESR Study, A. A. Zakhidov, I. I. Khairullin, P. K. Khabibullaev, V. Yu.
Sokolov, K. Imaeda, K. Yakushi, H. Inokuchi, Y. Achiba, Synthetic Metals,
55-57, 2967-2972 (1993).

22

Infrared and Transport Properties of KxC60, A. Ugawa, K. Yakushi, K.
Kikuchi, S. Suzuki, K. Sato, Y. Achiba, and I. Ikemoto, Synthetic Metals,
55-57, 2997-3001 (1993).

21

Structure and Solid State Properties of Conductive (Phthalocyaninato)cobalt
Salt, CoPc(AsF6)0.5, K. Yakushi, H. Yamakado, T. Ida, A. Ugawa, K. Awaga,
Y. Maruyama, K. Imaeda, and H. Inokuchi, Synthetic Metals, 55-57,
1699-1704 (1993).

20

Ferromagnetic TDAE-C60 versus Paramagnetic TDAE-C70: Faradey Balance
and ESR Study, K. Tanaka, A. A. Zakhidov, K. Yoshizawa, K. Okahara, T.
Yamabe, K. Yakushi, K. Kikuchi, S. Suzuki, I. Ikemoto, and Y. Achiba, Int. J.
Mod. Phys., B, 6, 3953-3958 (1992).

19

Evidence for Jahn-Teller Coupling and Fano Resonance of Lower Hg Modes in
KxC60 and Rb3C60 Films from Raman Scattering, V. N. Denisov, A. A.
Zakhidov, R. Danieli, G. Ruani, R. Zamboni, C. Taliani, K. Imaeda, K.
Yakushi, H. Inokuchi, Y. Achiba, Int. J. Mod. Phys. B, 6, 4019-4024 (1992).

18

Fermi Surface Study of Two-Dimensional Organic Metals (BEDT-TTF)2X, M.
Tokumoto, N. Kinoshita, H. Anzai, A. G. Swanson, J. S. Brooks, S. T.
Hannahs, C. C. Agosta, M. Tamura, H. Tajima, H. Kuroda, A. Ugawa, and K.

Yakushi, Synthetic Metals, 41-43, 2459 (1991).
17

The Fermi Surfaces in the -Type BEDT-TTF based Organic Superconductors,
K. Oshima, K. Araki, H. Yamazaki, K. Kato, Y. Maruyama, K. Yakushi, T.
Mori, H. Inokuchi, H. Mori, and S. Tanaka, Physica C, 185-189, 2689-2690(1991).

16

Low-Field Microwave Absorption in Organic Superconductor
-(ET)2[Cu(NCS)2], A. A. Zakhidov, A. Ugawa, K. Yakushi, K. Imaeda, H.
Inokuchi, I. I. Khairullin, and P. K. Khabibullaev, Physica C, 185-189,2669-2670 (1991).

15

Microwave Low-Field Signal and ESR in Kx(C60)1-y(C70)y and KxC70, A. A.
Zakhidov, K. Imaeda, A. Ugawa, K. Yakushi, H. Inokuchi, Z. Iqbal, R. H.
Baughman, B. L. Ramakrishna, and Y. Achiba, Physica C, 185-189, 411-412(1991).

14

Reflectance Spectra of some Two-Dimensional Organic Metals based on
BEDT-TTF and [Ni(dmit)2], M. Tamura, R. Masuda, T. Naito, H. Tajima, H.
Kuroda, A. Kobayashi, K. Yakushi, R. Kato, H. Kobayashi, M. Tokumoto, N.
Kinoshita, and H. Anzai, Synthetic Metals, 41-43, 2499-2502 (1991).

13

High-pressure optical study of partially oxidized metallophthalocyanines andmetallotetrabenzoporphyrins. T. Ida, D. Kanazawa, H. Yamakado, H.
Tajima, H. Kuroda, H. Masuda, and K. Yakushi, Mol. Cryst. Liq. Cryst., 181,243-252 (1990).

12

Relation between the dimensionality of electronic structure and the correlation
effect in (BEDT-TTF)2X system. A. Ugawa, K. Yakushi, and H. Kuroda,
Mol. Cryst. Liq. Cryst., 181, 269-278 (1990).

11

Polarized reflectance spectra of DCNQI salts. K. Yakushi, A. Ugawa, G.
Ojima, T. Ida, H. Tajima, H. Kuroda, A. Kobayashi, R. Kato, H. Kobayashi,
Mol. Cryst. Liq. Cryst., 181, 217-232 (1990).

10

Reflectance spectra of DCNQI salts. H. Tajima, G. Ojima, T. Ida, H. Kuroda,
A. Kobayashi, R. Kato, H. Kobayashi, A. Ugawa, and K. Yakushi, "ThePhysics and Chemistry of Organic Superconductors" ed. by G. Saito and S.
Kagoshima, Springer-Verlag, p49-53 (1990).

9

Microwave conductivity of the phthalocyanine and dicyano-quinonediimine
salts. H. Yamakado, A. Ugawa, T. Ida, and K. Yakushi, "The Physics andChemistry of Organic Superconductors" ed. by G. Saito and S. Kagoshima,
Springer-Verlag, p311-314 (1990).

8

Optical spectra of highly conducting phthalocyanine salts. K. Yakushi, H.
Yamakado, T. Ida, A. Ugawa, H. Masuda, H. Kuroda, "The Physics andChemistry of Organic Superconductors" ed. by G. Saito and S. Kagoshima,
Springer-Verlag, p54-57 (1990).

7

Preparation and Characterization of the cation radical salts of phthalocyanine
and tetrabenzoporphyrin. K. Yakushi, H. Yamakado, M. Yoshitake, N.
Kosugi, H. Kuroda, A. Kawamoto, J. Tanaka, T. Sugano, M. Kinoshita, S.
Hino, Synthetic Metals, 29, F95-F102 (1989).

6

Reflectance spectra of -,-,-(BEDT-TTF)2I3, and "- and'-(BEDT-TTF)2ICl2: Relation between the inter-band and the dimeric
structure. H. Kuroda, K. Yakushi, H. Tajima, A. Ugawa, M. Tamura, Y.
Okawa, A. Kobayashi, R. Kato, H. Kobayashi, and G. Saito, Synthetic Metals,
27, A491-A498 (1988).

5

Infrared properties of a novel organic superconductors,(BEDT-TTF)2[Cu(SCN)2]. A. Ugawa, G. Ojima, K. Yakushi, and H. Kuroda,
Synthetic Metals, 27, A445-A450 (1988).

4

Physical properties of "-(BEDT-TTF)2ICl2. A. Ugawa, Y. Okawa, K.
Yakushi, H. Kuroda, A. Kawamoto, H. Tanaka, M. Tanaka, Y. Nogami, S.
Kagoshima, K. Murata, and T. Ishiguro, Synthetic Metals, 27, A407-A412(1988).

3

Preparation and Structure of Phthalocyanine Complexes, K. Yakushi, M.
Sakuda, I. Hamada, and H. Kuroda, Synthetic Metals, 19, 769-774 (1987).

2

Optical Properties of BEDT-TTF Salts, H. Kuroda, K. Yakushi, H. Tajima, H.
Kanbara, and G. Saito, Synthetic Metals, 19, 131-136 (1987).

1

Reflectance Spectra of -(BEDT-TTF)2X (X = I3 and IBr2), H. Tajima, H.
Kanbara, K. Yakushi, H. Kuroda, and G. Saito, Synthetic Metals, 19, 137-142(1987).