WAKABAYASHI Katsunori
私たちの身の回りには、様々な物質があります。銅などの電気を流す金属、シリコンなどのエレクトロニクス素子に利用される半導体。あるいは、ダイアモンド、黒鉛、カーボンナノチューブは、どの物質も、炭素原子だけからなるにも関わらず、ダイアモンドは絶縁体、黒鉛は金属、カーボンナノチューブは金属または半導体となります。これらの違いは、物質内部の原子がなす結晶構造と、結晶中での電子状態が起源です。これらをミクロな視点で明らかにするのが、電子物性理論です。
ナノテクノロジーの急激な進歩によって、グラフェン(炭素原子だけからなる一原子分の厚みしかもたないシート)などの一原子層の厚みしかもたない究極的に薄い物質などが電子・光デバイスに応用されつつあります。そこでは、従来の半導体物理学では記述できない物理現象が数多くあることが分かってきています。さらに、ナノスケールの世界では、表面やエッジの効果が電子物性に強い影響を与えることが分かっており、そこではマクロな世界では現れない特異な量子物理現象が現れます。このため、従来のデバイス物理理論を単純に使うことはできず、それらを書き換えていく必要があります。新しい理論的な知見を得ることで、高効率のエネルギー輸送や変換などを指向した様々機能の設計ができるようになります。私たちの研究室では、(1) 基礎理論の構築、(2)理論を応用した機能設計、(3)新しい物性の予測という大きな三つの目標をかかげて、解析的な理論計算と大規模な数値計算によって、研究を進めています。
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Graduating School 【 display / non-display 】
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Graduating School:University of Tsukuba
Faculty:Third Cluster of College
Course / Major:College of Engineering Science
Kind of school:University
Date of graduation:1995.03
Completion status:Graduated
Country location code:Japan
Graduate School 【 display / non-display 】
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Graduate school:University of Tsukuba
Department:Graduate School, Division of Engineering
Course:Materials Science Course
Course completed:Doctor's Course
Date of completion:2000.03
Completion status:Completed
Country:Japan
Studying abroad experiences 【 display / non-display 】
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Name of institution: ETH-Zurich
Name of job or career: Postdoctral Research Associate
Date: 2003.10 - 2005.09
Degree 【 display / non-display 】
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Degree name:Ph.D (Engineering)
Classified degree field:Natural Science / Semiconductors, optical properties of condensed matter and atomic physics
Conferring institution:University of Tsukuba
Acquisition way:Coursework
Date of acquisition:2000.03 -
Degree name:Master (Engineering)
Classified degree field:Natural Science / Semiconductors, optical properties of condensed matter and atomic physics
Conferring institution:University of Tsukuba
Acquisition way:Coursework
Date of acquisition:1995.03 -
Degree name:Bachelor (Engineering)
Classified degree field:Natural Science / Semiconductors, optical properties of condensed matter and atomic physics
Conferring institution:University of Tsukuba
Acquisition way:Coursework
Date of acquisition:1995.03
Career 【 display / non-display 】
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Affiliation:Kwansei Gakuin University
Department:School of Engineering
Title:Professor
Date:2021.04 - -
Affiliation:National Institute for Materials Science (NIMS)
Department:WPI Center for Materials Nanoarchitectonics (WPI-MANA)
Title:Researcher
Date:2015.04 - -
Affiliation:Kwansei Gakuin University
Department:School of Science and Technology Department of Nanotechnology for Sustainable Energy
Title:Professor
Date:2015.04 - 2021.03 -
Affiliation:Osaka University
Department:Center for Spintronics Research Network (CSRN)
Title:Guest Professor
Date:2019.07 - -
Affiliation:National Institute for Materials Science (NIMS)
Department:WPI Center for Materials Nanoarchitectonics (WPI-MANA)
Title:Independent Scientist
Date:2009.06 - 2015.03
Association Memberships 【 display / non-display 】
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Academic society name:The Japan Society of Applied Physics
Academic country located:Japan -
Academic society name:American Physical Society (APS)
Academic country located:United States -
Academic society name:The Physical Society of Japan
Academic country located:Japan
Research Areas 【 display / non-display 】
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Research field:Nanotechnology/Materials / Nanostructural physics
Research keywords:Theoretical Nanoscience, Condensed Matter Theory
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Research field:Nanotechnology/Materials / Thin film/surface and interfacial physical properties
Research keywords:Surface and Interface Physics
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Research field:Natural Science / Semiconductors, optical properties of condensed matter and atomic physics
Research keywords:Condensed Matter Physics
Teacher organization examination execution 【 display / non-display 】
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School name: Kwansei Gakuin University
Career status: Professor
Date of authorization: 2015.04 -
School name: Kwansei Gakuin University
Career status: Professor
Date of authorization: 2015.04 -
School name: Hiroshima University
Career status: Assistant Professor
Date of authorization: 2007.02
Papers 【 display / non-display 】
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Title: Effective Conduction Path of a C<sub>60</sub> Chain in a Nanogap Electrode
Journal name: ACS APPLIED ELECTRONIC MATERIALS vol.6 (3) (p.1740 - 1745)
Date of publication: 2024.02
Author(s): Takei Masato, Hirama Takuma, Suga Hiroshi, Wakabayashi Katsunori, Tsukagoshi KazuhitoDOI: 10.1021/acsaelm.3c01656
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Title: Approximating maximally localized Wannier functions with position scaling eigenfunctions
Journal name: PHYSICAL REVIEW B vol.108 (24)
Date of publication: 2023.12
Author(s): Hamai Yuji, Wakabayashi KatsunoriDOI: 10.1103/PhysRevB.108.245413
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Title: Bound states at disclinations: an additive rule of real and reciprocal space topology
Journal name: FRONTIERS IN PHYSICS vol.11
Date of publication: 2023.06
Author(s): He Qinghua, Sun Jinhua, Deng Hai-Yao, Wakabayashi Katsunori, Liu FengDOI: 10.3389/fphy.2023.1213158
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Title: Electromechanical Switching of a C<sub>60</sub> Chain in a Nanogap
Journal name: ACS APPLIED ELECTRONIC MATERIALS
Date of publication: 2023.05
Author(s): Takei Masato, Takeuchi Mihiro, Suga Hiroshi, Wakahara Takatsugu, Wakabayashi Katsunori, Okada Susumu, Tsukagoshi KazuhitoDOI: 10.1021/acsaelm.3c00253
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Title: Symmetry manipulation of nonlinear optical effect for metallic transition-metal dichalcogenides
Journal name: PHYSICAL REVIEW B vol.107 (11)
Date of publication: 2023.03
Author(s): Habara Ren, Wakabayashi KatsunoriDOI: 10.1103/PhysRevB.107.115422
Books 【 display / non-display 】
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Language: English
Title: Materials Nanoarchitectonics
Publisher: Wiley‐VCH Verlag GmbH & Co. KGaA
Date of publication: 2018.01
Author(s): Katsuhiko Ariga Ariga, Mitsuhiro Ebara Ebara, Katsunori Wakabayashi, 他
Type of books: Scholarly book
Authorship:Contributor
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Language: English
Title: Graphene Nanoelectronics: Metrology, Synthesis, Properties and Applications
Publisher: Springer-Verlag
Date of publication: 2012.01
Author(s): Katsunori Wakabayashi
Type of books: Scholarly book
Area of responsibility: Electronic properties of graphene nanoribbons
Authorship:Contributor
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Title: Physics and Chemistry of Graphene: Graphene to Nanographene
Publisher: Pan Stanford Publishing
Date of publication: 2012
Author(s): Katsunori Wakabayashi
Type of books: Other
Area of responsibility: Electronic properties of nanographene
Authorship:Contributor
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Language: English
Title: Graphene and its Fascinating Attributes
Publisher: Word Scientific Publishing
Date of publication: 2011
Author(s): Katsunori Wakabayashi
Type of books: Scholarly book
Area of responsibility: Electronic and Transport Properties of Graphene Nanoribbons
Authorship:Contributor
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Language: English
Title: Physics of Zero- and One-Dimensional Nanoscopic Systems
Publisher: Springer
Date of publication: 2007.09
Author(s): (Chapter contribution) Katsunori Wakabayashi
Type of books: Scholarly book
Authorship:Other
Awards 【 display / non-display 】
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Prize: 13th JSPS Prize
Date awarded:2017.02
Country:Japan
Award type:International academic award (Japan or overseas)
Awarding organization:Japan Society for the Promotion of Science (JSPS)
Award-winner (group):Katsunori Wakabayashi
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Prize: The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology
Date awarded:2010.03
Country:Japan
Award type:Other
Awarding organization:Ministy of Education, Culture, Sports, Science and Technology(MEXT)
Award-winner (group):Katsunori Wakabayashi
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Prize: The Young Scientists' Award
Date awarded:2012.03
Country:Japan
Award type:Award from Japanese society, conference, symposium, etc.
Awarding organization:The Physical Society of Japan
Award-winner (group):Katsunori Wakabayashi
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Prize: Best Paper Awards for PTP-JPSJ, 2003
Date awarded:2003.03
Country:Japan
Award type:Award from Japanese society, conference, symposium, etc.
Awarding organization:The Physical Society of Japan
Award-winner (group):Mitsutaka Fujita, Katsunori Wakabayashi, Kyoko Nakada, Koichi Kusakabe
Research Projects 【 display / non-display 】
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Research category:学術変革領域研究(A)
Project year:2022.06 - 2024.03
Title:2.5次元物質における光学応答効果と光・電子機能設計の理論
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Research category:Grant-in-Aid for Scientific Research(B)
Project year:2021.04 - 2024.03
Title:二次元原子膜物理とフォトニクスの分野横断によるトポロジカル機能設計
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Research category:Grant-in-Aid for Scientific Research(B)
Project year:2018.04 - 2021.03
Title:Thermal and Optical Control of Valley-Polarized Current and Theoretical Design of Novel Topological Materials
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Research category:Grant-in-Aid for JSPS Fellows
Project year:2021.04 - 2023.03
Title:ナノスケールデバイスにおける量子輸送現象とその制御に関する理論的研究
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Research category:Grant-in-Aid for JSPS Fellows
Project year:2019.04 - 2021.03
Title:複合ナノ構造におけるプラズモニック特性と熱特性に関する理論的研究
Teaching Experience (Off-campus) 【 display / non-display 】
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Subject:ナノマテリアル工学特論
Institution name: -
Subject:量子理論特別講義Ⅱ
Institution name: -
Subject:固体電子論特論II
Institution name: -
Subject:物質設計ナノ工学
Institution name:Kwansei Gakuin University -
Subject:物理数学I
Institution name:Kwansei Gakuin University
Committee Memberships 【 display / non-display 】
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Organization name:The Physical Society of Japan
Committee name:Delegate
Date:2019.03 - 2021.03 -
Organization name:The Physical Society of Japan
Committee name:領域運営委員領域7
Date:2009.05 - 2010.04
Social Contribution 【 display / non-display 】
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Title:SGH, Himeji Nishi Senior High School
Date:2016.10Description:SGH課題研究