Personnel Information

写真b

WAKABAYASHI Katsunori

Organization
School of Engineering Program of Materials Science
Laboratory Address
Gakuen-Uegahara 1, Sanda 669-1330
Research Fields, Keywords
Computational Physics, Condensed Matter Theory, Quantum Materials, Theoretical Nanoscience, ナノサイエンス, ナノテクノロジー, 物性理論, 理論ナノ科学, 計算物理, 量子マテリアル
Teaching and Research Fields
私たちの研究室では、ナノスケールの大きさをもつ物質・材料の電子物性を、理論・計算によって解明し、ナノスケールの領域で顕著に起きる特異な電子物性について、新しい機能物性を理論的に予測し、設計を行っています。
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。
Mail Address
waka@kwansei.ac.jp
Laboratory Phone number
+81-79-565-9751
Laboratory Fax number
+81-79-565-9729
URL
http://www.kg-nanotech.jp/tmd/en/
Syllabus information URL
https://syllabus.kwansei.ac.jp/uniasv2/UnSSOLoginControlFree?REQ_ACTION_DO=/AGA030PLS01Action.do?REQ_FUNCTION_JUMP_START_FLG=1&SLB_LINK_DISP_FLG=352&TCH_NO=150007&REQ_PRFR_FUNC_ID=AGA030
SDGs Related Goals
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Graduating School 【 display / non-display 】

  • 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

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Graduate School 【 display / non-display 】

  • 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

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Studying abroad experiences 【 display / non-display 】

  • Name of institution: ETH-Zurich
    Name of job or career: Postdoctral Research Associate
    Date: 2003.10 - 2005.09

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Degree 【 display / non-display 】

  • 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

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Career 【 display / non-display 】

  • 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

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Association Memberships 【 display / non-display 】

  • 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

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Research Areas 【 display / non-display 】

  • Research field:Nanotechnology/Materials / Nanostructural physics
    Research keywords：Theoretical Nanoscience, Condensed Matter Theory

  • Research field:Nanotechnology/Materials / Thin film/surface and interfacial physical properties
    Research keywords：Surface and Interface Physics

  • Research field:Natural Science / Semiconductors, optical properties of condensed matter and atomic physics
    Research keywords：Condensed Matter Physics

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Teacher organization examination execution 【 display / non-display 】

  • 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

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Papers 【 display / non-display 】

  • 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 Kazuhito

    DOI: 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 Katsunori

    DOI: 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 Feng

    DOI: 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 Kazuhito

    DOI: 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 Katsunori

    DOI: 10.1103/PhysRevB.107.115422

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Books 【 display / non-display 】

  • 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

  • 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

  • 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

  • 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

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Awards 【 display / non-display 】

  • 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

  • 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

  • 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

  • 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

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Research Projects 【 display / non-display 】

  • 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

  • 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

  • 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

  • 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

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Teaching Experience (Off-campus) 【 display / non-display 】

  • 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

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Committee Memberships 【 display / non-display 】

  • 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

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Social Contribution 【 display / non-display 】

  • Title:SGH, Himeji Nishi Senior High School
    Date：2016.10

    Description:SGH課題研究

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