キム ゴウン (김 고운) KIM, Gowoon

居室：北キャンパス電子科学研究所 3F 03-106
TEL : 011-706-9433 / FAX : 011-706-9432
研究キーワード：電気化学材料・デバイス
0000-0002-5803-839X

略歴2018 年 10 月 – 2021 年 9 月: 博士課程, 北海道大学 大学院情報科学研究科 (指導教員: 太田裕道 教授) 博士(工学)2016 年 9 月 – 2018 年 8 月: 修士（理学）, 釜山大学校 物理 (指導教員: ジン ヒョンジン 准教授)
2013 年 3 月 – 2016 年 8 月: 学士（理学）, 釜山大学校 物理2011 年 3 月 – 2013 年 2 月: 学士（理学）課程, 釜慶大学校 物理原著論文 (15)[15] Xi Zhang*, Gowoon Kim, Qian Yang, Jiake Wei, Bin Feng, Yuichi Ikuhara, andHiromichi Ohta*, “Solid-State Electrochemical Switch of Superconductor-MetalInsulators”, ACS Appl. Mater. Interfaces in press[14] Binjie Chen*, Gowoon Kim, Hai Jun Cho, and Hiromichi Ohta*, “RoomTemperature Insulator-to-Metal Transition of VO2 / TiO2 Epitaxial Bilayer Films Grown
on M-plane Sapphire Substrates”, Adv. Electron. Mater. 2100687 (2021). (October19, 2021) (DOI: 10.1002/aelm.202100687)[13] Gowoon Kim*, Hai Jun Cho, and Hiromichi Ohta*, “Reversible Redox Control ofOptoelectronic Properties of Hexagonal Tungsten Oxide Epitaxial Films Grown on YSZSolid Electrolyte”, ACS Appl. Electron. Mater. 3, 3619-3624 (2021). (August 6, 2021)(DOI: 10.1021/acsaelm.1c00522)[12] Hyeonjun Kong, Gowoon Kim, Joonhyuk Lee, Jinhyung Cho, and Hyoungjeen
Jeen, “Effect of thermal annealing on nitrogen implanted epitaxial Fe films”, Curr.
Appl. Phys. 24, 7-11 (2021). (January 26, 2021) (DOI: 10.1016/j.cap.2021.01.008)[11] Gowoon Kim*, Bin Feng, Sangkyun Ryu, Hai Jun Cho, Hyoungjeen Jeen, Yuichi
Ikuhara, and Hiromichi Ohta*, “Anisotropic Electrical Conductivity of Oxygen-Deficient
Tungsten Oxide Films with Epitaxially Stabilized 1D Atomic Defect Tunnels”, ACS Appl.
Mater. Interfaces 13, 6864-6869 (2021). (January 28, 2021) (DOI:
10.1021/acsami.0c21240)[10] Gowoon Kim*, Bin Feng, Yu-Miin Sheu, Hai Jun Cho, Yuichi Ikuhara, Hiromichi
Ohta*, “Coexistence of high electron conduction and low heat conduction in tungsten
oxide epitaxial films with 1D atomic defect tunnels”, ACS Appl. Electron.
Mater. 2, 2507-2513 (2020). (July 28, 2020) (DOI:10.1021/acsaelm.0c00428)[9] Qian Yang, Joonhyuk Lee, Bin Feng, Yuichi Ikuhara, Gowoon Kim, Hai Jun Cho,Hyoungjeen Jeen*, and Hiromichi Ohta*, “Unusually large thermopower change from+330 μV K-1 to -185 μV K-1 of brownmillerite SrCoO2.5“, ACS Appl. Electron. Matter. 2,2250-2256 (2020). (July 6, 2020) (DOI: 10.1021/acsaelm.0c00427)

[8] Hai Jun Cho,* Koichi Sato, Mian Wei, Gowoon Kim, and Hiromichi Ohta*, “Effectof lattice distortions on the electron and thermal transport properties of transparentoxide semiconductor Ba1-xSrxSnO3 solid solution films”, J. Appl. Phys. 127, 115701(2020). (March 17, 2020) (DOI: 10.1063/5.0002172) Editors’ pick[7] Gowoon Kim, Hai Jun Cho*, Yu-Miin Sheu, and Hiromichi Ohta*, “Electrical,optical and thermal transport properties of oxygen deficient amorphous WO x (2.5< x < 3) films”, The Journal of Physical Chemistry C (2019). (DOI:10.1021/acs.jpcc.9b02448) Cover image[6] Anup Sanchela*, Mian Wei, Joonhyuk Lee, Gowoon Kim, Hyoungjeen Jeen, BinFeng, Yuichi Ikuhara, Hai Jun Cho, Hiromichi Ohta*, “Buffer layer-less fabrication ofhigh-mobility transparent oxide semiconductor, La-doped BaSnO3”, Journal ofMaterials Chemistry C 7, 5797-5802 (2019). (DOI: 10.1039/C8TC06177G) (April 8,2019)[5] Hai Jun Cho* Gowoon Kim , Takaki Onozato, Hyoungjeen Jeen, Hiromichi Ohta
“Thermal conductivity tensor of NbO2“, International Journal of Heat and MassTransfer, 137, 263 (2019) (DOI : 10.1016 / j.ijheatmasstransfer .2019.03.135)[4] Gowoon Kim , Yu-Qiao Zhang, Taewon Min, Hoyoung Suh, Jae Hyuck Jang,Hyeonjun Kong, Joonhyuk Lee, Jaekwang Lee, Tae-Yeol Jeon, Inwon Lee, Jinhyung
Cho, Hiromichi Ohta * and Hyoungjeen Jeen* “Extremely light carrier effective mass ina distorted simple metal oxide ” Adv. Electron. Mater. 5 , 1800504 (2019) (December7, 2018) ( DOI : 10.1002 / aelm.201800504 )[3] Anup V. Sanchela*, Mian Wei, Haruki Zensyo, Bin Feng, Joonhyuk Lee, Gowoon
Kim, Hyoungjeen Jeen, Yuichi Ikuhara, and Hiromichi Ohta* “Large thickness
dependence of the carrier mobility in a transparent oxide semiconductor, La-doped
BaSnO3“, Appl. Phys. Lett. 112 , 232102 (2018) . ( arXiv : 1804.05344 )[2] Hyeonjun Kong, Eunyoung Ahn, Gowoon Kim, Sangkyun Ryu, Sungkyun Park,and Hyoungjeen Jeen* “Thickness dependence on magnetism in Mo capped epitaxial
Fe Films “, J. Kor. Phys. Soc. 73 , 622 (2018) .
[1] Gowoon Kim, Hyeonjun Kong, Dongjin Kim, Hosu Lee, Hosun Lee, Mijung Jeen,Sungwook. Mhin, and Hyoungjeen Jeen* “Thermally-driven unequal cation vacancy
formation and its effect on dielectric properties in K 0.5Na0.5NbO3 ceramics”, J. Kor. Phys.
Soc. 71 , 12 (2017) .

招待講演 (1)[1] Gowoon Kim, Bin Feng, Yu-Miin Sheu, Sangkyun Ryu, Hyoungjeen Jeen, Yuichi
Ikuhara, Hai Jun Cho, and Hiromichi Ohta, “Thermoelectric Properties of Tungsten
Oxide Epitaxial Films”, 2021 KPS Fall Meeting, Virtual, October 20-22. (Invited)

学会発表 (30)[30] G. Kim, H.J. Cho, H Ohta, “Reversible Redox Control of Optoelectronic Propertiesof Hexagonal Tungsten Oxide Epitaxial Films Grown on YSZ Solid Electrolyte”, 第 82 回
応用物理学会秋季学術講演会, online, 2021.9.10-13.
[29] Gowoon Kim, Bin Feng, Yu-Miin Sheu, Sangkyun Ryu, Hyoungjeen Jeen, Yuichi
Ikuhara, Hai Jun Cho, and Hiromichi Ohta, “Thermoelectric properties of 1D atomic
defect tunnels stabilized tungsten oxide epitaxial film (25-3516)”, The 8thInternational Congress on Ceramics (ICC8), Virtual, April 25-30, 2021. (Highlightedin the conference website “Closing remarks”)[28] Gowoon Kim, Bin Feng, Yu-Miin Sheu, Sangkyun Ryu, Hyoungjeen Jeen, Hai JunCho, and Hiromichi Ohta, “Thermoelectric Properties of Tungsten Oxide Films with 1D
Atomic Defect Tunnels”, 2021 年 第 68 回 応用物理学会春季学術講演会, online,
2021.3.16-19.
[27] Gowoon Kim, Bin Feng, Yuichi Ikuhara, Yu-Miin Sheu, Hai Jun Cho, andHiromichi Ohta, “Phonon-Glass and Electron-Crystal Behavior of WOx Films containing
1D Atomic Defect Tunnels”, Electronic Materials and Applications 2021 (EMA2021),
virtual, Jan. 19-22, 2021.
[26] G. Kim, B. Feng, S. Ryu, H. Jeen, H.J. Cho, Y. Ikuhara, and H. Ohta, “Anisotropyin the electrical conductivity of oxygen deficient WOx with 1D atomic defecttunnels”, 第 56 回 応用物理学会北海道支部/第 17 回日本光学会北海道支部合同学術講演会,
online, 2021.1.9-10.

[25] Gowoon Kim, Bin Feng, Sangkyun Ryu, Hai Jun Cho, Hyoungjeen Jeen, Yuichi
Ikuhara, and Hiromichi Ohta, “Large Anisotropy of Electron Transport in Oxygen
Deficient Tungsten Oxide Epitaxial Films with 1D Atomic Defect Tunnels (P59)”, The
21st RIES-Hokudai International Symposium 間 [ma], online, December 10-11, 2020
(poster). Poster Award[24] キムゴウン，フウビン，リュサンギュン，ジンヒョンジン，ジョヘジュン，幾原雄一，太田裕道, “酸化タン
グステンエピタキシャル薄膜中で安定化された 1 次元原子欠陥トンネルの異方性電子輸送”, 第 14 回物性科学領域横断研究会, オンライン, 2020 年 12 月 4 日-5 日（口頭）[23] Gowoon Kim, Bin Feng, Yuichi Ikuhara, Yu-Miin Sheu, Hai Jun Cho, andHiromichi Ohta, “Heat and electron transports of 1D atomic defect tunnels stabilized intungsten oxide epitaxial films”, 令和 2 年度 日本セラミックス協会 東北北海道支部 研究発表会,
online, November 13-14, 2020. （口頭）優秀発表賞[22] Gowoon Kim, Bin Feng, Yuichi Ikuhara, Yu-Miin Sheu, Hai Jun Cho, andHiromichi Ohta, “Heat and Electron Transports of 1D Atomic Defect Tunnels Stabilizedin WOx Films”, 薄膜材料デバイス研究会 第 17 回研究会「薄膜デバイスの原点」, November 5-6,2020. （ポスター）[21] Gowoon Kim, Bin Feng, Yu-Miin Sheu, Hai Jun Cho, Yuichi Ikuhara, andHiromichi Ohta, “High Electron and Low Heat Transports of 1D Atomic Defect Tunnels
Stabilized in Tungsten Oxide Epitaxial Films”, Pacific Rim Meeting on Electrochemicaland Solid State Science (PRiME 2020), online, October 4-9, 2020.
[20] Gowoon Kim, Hai Jun Cho, Bin Feng, Yuichi Ikuhara, and Hiromichi Ohta,“Phonon-Glass Electron-Crystal behavior in Magneli tungsten oxide”, The 67th JSAP
Spring Meeting 2020 (canceled, the presentation has been established), Sophia
University, Tokyo, March 12-15, 2020[19] Gowoon Kim, Bin Feng, Hai Jun Cho, Yuichi Ikuhara, and Hiromichi Ohta, “高電気伝導率を示す Magneli WOx 薄膜の異常低熱伝導率”, The 55th Japan Society of Applied
Physics Hokkaido Branch Meeting, Hokkaido University, January 11-12, 2020.
[18] G. Kim, H. J. Cho, B. Feng, Y. Ikuhara, and H. Ohta, “Systematic Clarification ofElectron and Heat Transports in Oxygen Deficient WOx“, The 3rd Workshop on
Functional Materials Science, Sapporo, Japan, December 18th-20th, 2019. (Poster)[17] Gowoon Kim, Hai Jun Cho, Yu-Miin Sheu, Hiromichi Ohta, “Electrical, optical andthermal transport properties of oxygen deficient amorphous WOx (2.5 < x < 3)

films”, 2019 MRS Fall Meeting & Exhibit, Boston, MA, December 1-6, 2019. Best
Poster Award Nomination[16] Gowoon Kim, Hai Jun Cho, Bin Feng, Yuichi Ikuhara, Hiromichi Ohta,“Systematic Clarification of Electron and Heat Transports in Oxygen Deficient WO x –Comparison between Amorphous Films and Epitaxial Films –”, TOEO-11, Nara, Japan,
October 7-9, 2019[15] キム ゴウン，ジョ ヘジュン，馮斌，幾原雄一，太田裕道, “酸素欠損 WOx（2.83 < x < 3）エピタキシャル薄膜の電子・熱輸送特性”, 2019 年 第 80 回応用物理学会秋季学術講演会, 北海道大学 札幌キャンパス, 北海道札幌市, 2019 年 9 月 18 日-21 日.
[14] キム ゴウン，ジョ ヘジュン，Yu-Miin Sheu，太田裕道, “アモルファス WOx（2.5 < x < 3）薄膜の光・電子・熱輸送”, 2019 年 第 80 回応用物理学会秋季学術講演会, 北海道大学 札幌キャンパス, 北海道札幌市, 2019 年 9 月 18 日-21 日.
[13] Gowoon Kim , Yu-Qiao Zhang, Taewon Min, Hoyoung Suh, Jae Hyuck Jang,Hyeonjun Kong, Joonhuyk Lee, Jaekwang Lee, Tae-Yeol Jeon, Inwon Lee, Jinhyung
Cho, Hiromichi Ohta, Hyoungjeen Jeen “Extremely light carrier effective mass in a
distorted simple metal oxide , NbO2”

The 19th RIES-HOKUDAI International

Symposium 組[So], Jozankei View Hotel, Sapporo, December 11th-12th, 2018
(Poster)[12] Gowoon Kim, Yu-Qiao Zang, Taewon Min, Hoyoung Seo, Jaehyuck Jang,Hyeonjun Kong, Joonhyuk Lee, Jaekwang Lee, Tae-Yeol Jeon, Inwon Lee, JinHyung
Cho, Hiromichi Ohta, and Hyoungjeen Jeen, “Facile path for electron hopping inepitaxial NbO2 thin films”, the International Conference on Electronic Materials andNanotechnology for Green Environment (ENGE 2018), Jeju, South Korea, 11th-14th
November, 2018 (Oral)[11] G. Kim, Y. Zhang, T. Min, H. Seo, J. Jang, H. Kong, J-H. Lee, J-K. Lee, T.Y. Jeon,
I. Lee, J.H. Cho, H. Ohta, and H. Jeen, “A facile path for electron hopping in
NbO2“, The 2nd Workshop on Functional Materials Science, Busan, South Korea,October 22-23, 2018[10] G. Kim, “Orientation dependent physical properties of epitaxial NbO 2 thin films on
Al2O3 substrates”, 2018 Korean Physical Society Busan- Ulsan-Gyeongnam Branch
69th Annual Meeting, Jun. 22, 2018 (Poster).

[9] G. Kim, E. Ahn, H. Kong, J. Lee, Y. Baek, and H. Jeen, “Effect of nitrogen partialpressure on magnetism in annealed (110) Fe films”, 2018 International Conference for
Asian Union of Magnetic Societies, Jeju, Korea, Jun. 3-7, 2018 (Poster).
[8] H. Jeen, G. Kim, Y. Zhang, T. Min, H. Suh, J. Jang, H. Kong, J. Lee, T. Jeon, I.
Lee, J. Cho, and H. Ohta, “Orientation dependent physical properties of epitaxial
NbO2 thin films”, 2018 Spring Korean Physical Society Meeting, Daejeon Convention
Center, Korea, Apr. 25-27, 2018 (Oral).
[7] G. Kim, “Orientation dependent physical properties of epitaxial NbO2 thin films on
Al2O3 substrates”, 2016 Muju ferro-electric symposium Feb. 4-6, 2018 (Poster).
[6] G. Kim, E. Ahn, Y. Seo, J. Cho, and H. Jeen, “Effect of thermal treatment on N+ions implanted NbO2 thin films”, Emallia Conference, Busan, Korea, Sep. 7-8, 2017(Oral).
[5] G. Kim, “Orientation dependent optical conductivity of epitaxial NbO 2 thin films”,
2017 Korean Physical Society Busan- Ulsan-Gyeongnam Branch 68th Annual Meeting,Jun. 23, 2017 (Poster).
[4] G. Kim, J. Cho, and H. Jeen, “Epitaxial growth of NbO2 thin films on
Al2O3 substrates”, 2017 Spring Korean Physical Society Meeting, Daejeon Convention
Center, Korea, Apr. 19-21, 2017 (Poster).
[3] G. Kim, “Thermal annealing effect on physical properties of
K0.5Na0.5NbO3 polycrystals”, 2016 Muju ferro-electric symposium, Jan. 31-Feb. 2, 2016(Poster).
[2] G. Kim, “Thermal annealing effect on physical properties of
K0.5Na0.5NbO3 polycrystals”, 2016 Spring Korean Physical Society Meeting, Apr. 20-22,
2016 (Poster).
[1] G. Kim “Thermal annealing effect on physical properties of
K 0.5 Na0.5NbO3 polycrystals”2015 Fall Busan-Ulsan-Gyeongnam Chapter Meeting of
Korean Physical Society, Dec. 22, 2015 (Poster).

受賞 (6)

[6] 北海道大学大学院 情報科学研究科, 研究科長賞 (2021.9.24)[5] Poster Award, (2020.12.11), Gowoon Kim, Bin Feng, Sangkyun Ryu, Hai Jun
Cho, Hyoungjeen Jeen, Yuichi Ikuhara, and Hiromichi Ohta, “Large Anisotropy ofElectron Transport in Oxygen Deficient Tungsten Oxide Epitaxial Films with 1D Atomic
Defect Tunnels (P59)”, The 21st RIES-Hokudai International Symposium 間 [ma],online, December 10-11, 2020 (poster). 写真 1 写真 2[4] 優秀発表賞, 2020 年度 日本セラミックス協会東北北海道支部 研究発表会, “Heat andelectron transports of 1D atomic defect tunnels stabilized in tungsten oxide epitaxialfilms (1A03)”, キムゴウン，フウビ ン，幾原雄一，ユーミンシュー，ジョヘジュン，太田裕道 , オンライン, 2020 年 11 月 13 日-14 日 写真 1 写真 2
[3] Best Poster Award Nominee, Gowoon Kim, Hai Jun Cho, Yu-Miin Sheu,Hiromichi Ohta, “Electrical, optical and thermal transport properties of oxygen
deficient amorphous WOx (2.5 < x < 3) films”, 2019 MRS Fall Meeting & Exhibit,Boston, MA, December 1-6, 2019. Photo[2] BK21 plus scholarship from the Ministry of Education, S. Korea, Sep. 2016-Aug.
2018[1] Best poster award 2015 Fall Busan-Ulsan-Kyeongnam Chapter Meeting of Korean
Physical Society, Dec. 2015