日本語
The University of Electro-Communications
Graduate School of Informatics and Engineering, School of Informatics and Engineering
Division of General Education
Associate Professor
Nobuhito KOKUBO
Personal website
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Career
Leiden University, Kamerlingh Onnes Laboratory 客員研究員 1999/10/01-2001/09/30
Leiden University, Kamerlingh Onnes Laboratory 博士研究員 2001/10/01-2003/09/30
University of Tsukuba, Institute of Materials Science Assistant Professor 2003/10/01-2004/03/31
University of Tsukuba, Institute of Materials Science Assistant Professor 2004/04/01-2006/04/30
Kyushu University, Center for Research and Advancement in Higher Education Assistant Professor 2006/05/01-2006/05/31
Kyushu University, Center for Research and Advancement in Higher Education Assistant Professor 2006/06/01-2007/03/31
Kyushu University, Center for Research and Advancement in Higher Education Assistant Professor 2007/04/01-2011/08/31
電気通信大学情報理工学部 准教授 2011/09/01-Present
電気通信大学大学院情報理工学研究科 准教授 2012/01/01-Present
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Academic background
Tokyo Institute of Technology Graduate School, Division of Science and Engineering 物理学専攻 Doctoral program 1998/03 Completed
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Academic degrees
修士(理学) Tokyo Institute of Technology 1995/03
博士(理学) 東京工業大学 1998/03
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Classes responsible within the university
2022 固体物理工学第一 Spring semester Undergraduate, daytime
2022 物理学概論第一 Spring semester Undergraduate, daytime
2022 固体物性論基礎 Spring semester Graduate, IE
2022 現代物理学を創った人々 Spring semester Undergraduate, daytime
2022 物理学概論第二 Fall semester Undergraduate, daytime
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Current research areas
Condensed matter physics II
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Current research subjects
幾何学的に閉じ込められた磁束量子状態 第2種超伝導体、磁束量子、メゾスコピック系 2011/04/01-2015/03/31
超伝導量子渦ビットの創出 2014/04/01-2017/03/31
微小超伝導体の反量子渦状態と制御 2014/04/01-Present
ナノピペットを利用した超伝導ナノセンシング技術の開発 超伝導量子干渉計、ナノピペット、磁気顕微鏡 2020/03/11-Present
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Published books
Book 超伝導磁束状態の物理 小久保伸人 裳華房 2017/04/05 978-4-7853-2922-8
Book The Oxford Handbook of Small Superconductors Nobuhito Kokubo, Satoru Okayasu, Kazuo Kadowaki Oxford University Press 81-107 2017/01 9780198738169
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Published papers
Paper Yes Finite-size effect of critical penetration of Pearl vortices in narrow superconducting flat rings Joint N. Kokubo, S. Okayasu, and T. Nojima Journal of Applied Physics 125, 223906-1-223906-6 2019/06/14
10.1063/1.5100497
Paper Yes Vortex shells in mesoscopic triangles of amorphous superconducting thin films Joint N. Kokubo, H. Miyahara, S. Okayasu, T. Nojima Physica C 532 2016/11
10.1016/j.physc.2016.05.009
Paper Yes Equilibrium and Dynamic Vortex States near Absolute Zero in a Weak Pinning Amorphous Film Joint Aguri Ochi, Naoya Sohara, Shin-ichi Kaneko, Nobuhito Kokubo, and Satoshi Okuma Journal of the Physical Society of Japan 85/ 4, 044701-1-044701-7 2016/03/02
10.7566/JPSJ.85.044701
Paper Yes Dynamic Melting of Driven Abrikosov Lattices in an Amorphous MoxGe1−x Film in Tilted Field Joint Aguri Ochi, Yasuki Kawamura, Toshiki Inoue, Tetsuya Kaji, Dobroka Mihaly, Shin-ichi Kaneko, Nobuhito Kokubo, Satoshi Okuma Journal of the Physical Society of Japan 85/ 3, 034712-1-034712-6 2016/02/12
10.7566/JPSJ.85.034712
Paper Yes Commensurate and incommensurate Vortex States Confined in Mesoscopic Triangles of Weak Pinning Superconducting Thin Films Joint N. Kokubo, H. Miyahara, S. Okayasu, and T. Nojima Journal of the Physical Society of Japan 83/ 9, 043704-1-043704-04 2015/03/12
10.7566/JPSJ.84.043704
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Research presentations
Oral presentation for an academic conference 超伝導熱・磁気顕微鏡の開発を目指して ワークショップ「ナノ構造超伝導体における渦糸状態 No 小久保伸人 2019/06/02
Oral presentation for an academic conference 領域6、4 合同シンポジウム「量子磁束の構造と制御による超伝導位相物理の構築」 微小超伝導体における量子化磁束状態 日本物理学会2018年秋季大会 10pB102-2 No 小久保伸人 2018/09/10
Oral presentation for an academic conference Manipulation of Fluxon States in Microstructured Superconducting Thin Films 10 th international conference on vortex matter in nanostructured superconductors (Vortex X) No Nobuhito Kokubo, Satoru Okayasu, Tsutomu Nojima, Takahiko Sasaki 2017/09/13
Oral presentation for an academic conference Flux-flow instability in cleaved thin films of 2H-NbSe2 single crystals The 28th International Conference on Low Temperature Physics Yes J. Yoshida, H.Ando, N. Kokubo 2017/08/10
URL
Oral presentation for an academic conference Observation of flux states and interstitial vortices in perforated mesoscopic squares of amorphous superconducting films The 28th International Conference on Low Temperature Physics Yes M Mitsuishi,K. Kitano,N. Kokubo,S. Okayasu,T. Nojima, T. Sasaki: 2017/08/10
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Awards
Second Prize in the Poster Competition, (International Conference on Nanoscience and Engineering in Superconductivity) 2009/03
Second Prize in the Poster Competition, Joint ESF and JSPS Conference on “Vortex Matter in Superconductors IV” 2005/09
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Public lectures
サイエンスドリーム(才能を育てる体験学習) 世田谷区教育委員会 2011/01/19 電気通信大学
福岡県高校生科学教育推進事業能力アップ講座スーパーサイエンスセミナー 福岡県教員委員会 2006/08 九州大学
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Memberships of academic societies
応用物理学会
日本物理学会
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Involvement in conference and research meetings
日本物理学会第74回年次大会(2019年) 領域6 超伝導セッション 座長 2019/03/15
第26回渦糸物理国内会議 主催 2018/12/03
The Fifth MIPT – UEC – LPI International Workshop on Atomic, Molecular and Optical Physics Session Chairman 2018/10/02
日本物理学会2018年秋季大会 領域6 超伝導セッション 座長 2018/09/09
新規超伝導体・ナノ構造超伝導体における渦糸物理 座長 2018/02/24
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Committee or council involvement
神奈川県立相模原高等学校スーパーサイエンスハイスクール運営指導委員会 運営指導委員 2022/04/01-2024/03/31
日本物理学会 第77~78期代議員 2021/04/01-Present
日本物理学会 領域世話人(領域6) 2009/05-2010/04
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Committee activity in the University
学域時間割作成委員会 委員 2022/04-2023/03
部内教育委員 委員 2022/04-2023/03
テニュア・トラック助教人事 委員 2017/06-Present
H29年度 類・専門教育プログラム配属検討WG 委員 2017/05-Present
単位認定小委員会 委員 2017/04-2018/03
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