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Kawaguchi Masashi  河口 真志

ORCIDConnect your ORCID iD *help
Researcher Number 90792325
Affiliation (Current) 2025: 東京大学, 大学院理学系研究科(理学部), 助教
Affiliation (based on the past Project Information) *help 2018 – 2024: 東京大学, 大学院理学系研究科(理学部), 助教
Review Section/Research Field
Principal Investigator
Medium-sized Section 29:Applied condensed matter physics and related fields / Basic Section 21060:Electron device and electronic equipment-related / Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related / Basic Section 29010:Applied physical properties-related
Except Principal Investigator
Medium-sized Section 28:Nano/micro science and related fields / Basic Section 28030:Nanomaterials-related
Keywords
Principal Investigator
スピントロニクス / フラットバンド / スピン流 / マグノン / 表面弾性波 / 逆ファラデー効果 / ディラック半金属 / 磁性 / スピン軌道相互作用 / スピントリプレット / 超伝導 … More
Except Principal Investigator
… More pn接合 / 移動度 / ディラック半金属 / トポロジカル絶縁体 / 接合 / 半導体 / スピン流 / ジャロシンスキー守谷交換定数 / マイクロマグネティックシミュレーション / 磁気パラメータ / 機械学習 Less
  • Research Projects

    (6 results)
  • Research Products

    (22 results)
  • Co-Researchers

    (6 People)
  •  弾性波フォノン非線形効果の学理と材料科学Principal Investigator

    • Principal Investigator
      河口 真志
    • Project Period (FY)
      2024 – 2026
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Review Section
      Basic Section 21060:Electron device and electronic equipment-related
    • Research Institution
      The University of Tokyo
  •  二次元層状物質中のフラットバンドにおけるスピン輸送Principal Investigator

    • Principal Investigator
      河口 真志
    • Project Period (FY)
      2024 – 2025
    • Research Category
      Grant-in-Aid for Challenging Research (Exploratory)
    • Review Section
      Medium-sized Section 29:Applied condensed matter physics and related fields
    • Research Institution
      The University of Tokyo
  •  Spin current amplifier

    • Principal Investigator
      Hayashi Masamitsu
    • Project Period (FY)
      2022 – 2023
    • Research Category
      Grant-in-Aid for Challenging Research (Exploratory)
    • Review Section
      Medium-sized Section 28:Nano/micro science and related fields
    • Research Institution
      The University of Tokyo
  •  ディラック電子系における逆ファラデー効果によるスピン流発生Principal Investigator

    • Principal Investigator
      河口 真志
    • Project Period (FY)
      2021 – 2024
    • Research Category
      Grant-in-Aid for Early-Career Scientists
    • Review Section
      Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
    • Research Institution
      The University of Tokyo
  •  Determination of the magnetic parameter using pattern recognition and machine learning

    • Principal Investigator
      Yoshinobu Nakatani
    • Project Period (FY)
      2019 – 2021
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Review Section
      Basic Section 28030:Nanomaterials-related
    • Research Institution
      The University of Electro-Communications
  •  Superconducting in ferromagnetic materials induced by proximity effectPrincipal Investigator

    • Principal Investigator
      Kawaguchi Masashi
    • Project Period (FY)
      2018 – 2019
    • Research Category
      Grant-in-Aid for Early-Career Scientists
    • Review Section
      Basic Section 29010:Applied physical properties-related
    • Research Institution
      The University of Tokyo

All 2023 2022 2021 2020 2019

All Journal Article Presentation

  • [Journal Article] Spin Hall effect driven by the spin magnetic moment current in Dirac materials2022

    • Author(s)
      Chi Zhendong、Qu Guanxiong、Lau Yong-Chang、Kawaguchi Masashi、Fujimoto Junji、Takanashi Koki、Ogata Masao、Hayashi Masamitsu
    • Journal Title

      Physical Review B

      Volume: 105 Issue: 21 Pages: 214419-214419

    • DOI

      10.1103/physrevb.105.214419

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-21K13863, KAKENHI-PROJECT-22K13997
  • [Journal Article] Charge?spin conversion in Pt<sub>1?<i>x</i></sub>Bi<sub><i>x</i></sub> alloys for spin?orbit torque switching2021

    • Author(s)
      Chi Zhendong、Lau Yong-Chang、Kawaguchi Masashi、Hayashi Masamitsu
    • Journal Title

      APL Materials

      Volume: 9 Issue: 6 Pages: 061111-061111

    • DOI

      10.1063/5.0052534

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-21K13863
  • [Journal Article] Switchable generation of azimuthally- and radially-polarized terahertz beams from a spintronic terahertz emitter2021

    • Author(s)
      Niwa Hiroaki、Yoshikawa Naotaka、Kawaguchi Masashi、Hayashi Masamitsu、Shimano Ryo
    • Journal Title

      Optics Express

      Volume: 29 Issue: 9 Pages: 13331-13331

    • DOI

      10.1364/oe.422484

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-20K20343, KAKENHI-PROJECT-21K13863
  • [Journal Article] Interface-enhanced helicity dependent photocurrent in metal/semimetal bilayers2021

    • Author(s)
      Hirose Hana、Kawaguchi Masashi、Lau Yong-Chang、Chi Zhendong、Freimuth Frank、Takanashi Koki、Hayashi Masamitsu
    • Journal Title

      Physical Review B

      Volume: 103 Issue: 17 Pages: 1-6

    • DOI

      10.1103/physrevb.103.174437

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-21K13863, KAKENHI-PROJECT-22KJ0496
  • [Journal Article] Determination of the Dzyaloshinskii-Moriya interaction using pattern recognition and machine learning2021

    • Author(s)
      Kawaguchi Masashi、Tanabe Kenji、Yamada Keisuke、Sawa Takuya、Hasegawa Shun、Hayashi Masamitsu、Nakatani Yoshinobu
    • Journal Title

      npj Computational Materials

      Volume: 7 Issue: 1

    • DOI

      10.1038/s41524-020-00485-2

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-19H02553
  • [Journal Article] Highly efficient spin-orbit torque in Pt/Co/Ir multilayers with antiferromagnetic interlayer exchange coupling2020

    • Author(s)
      Ishikuro Yuto、Kawaguchi Masashi、Taniguchi Tomohiro、Hayashi Masamitsu
    • Journal Title

      Physical Review B

      Volume: 101 Issue: 1 Pages: 014404-014404

    • DOI

      10.1103/physrevb.101.014404

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18K14112, KAKENHI-PROJECT-15H05702
  • [Journal Article] Dzyaloshinskii-Moriya interaction and spin-orbit torque at the Ir/Co interface2019

    • Author(s)
      Y. Ishikuro, M. Kawaguchi, N. Kato, Y. C. Lau, M. Hayashi
    • Journal Title

      Phys. Rev. B

      Volume: 99 Issue: 13 Pages: 134421-134421

    • DOI

      10.1103/physrevb.99.134421

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-16H03853, KAKENHI-PROJECT-17F17064, KAKENHI-PROJECT-18K14112, KAKENHI-PROJECT-15H05702
  • [Journal Article] Giant perpendicular magnetic anisotropy in Ir/Co/Pt multilayers2019

    • Author(s)
      Lau Yong-Chang、Chi Zhendong、Taniguchi Tomohiro、Kawaguchi Masashi、Shibata Goro、Kawamura Naomi、Suzuki Motohiro、Fukami Shunsuke、Fujimori Atsushi、Ohno Hideo、Hayashi Masamitsu
    • Journal Title

      Physical Review Materials

      Volume: 3 Issue: 10 Pages: 104419-104419

    • DOI

      10.1103/physrevmaterials.3.104419

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18K14112, KAKENHI-PROJECT-15H05702
  • [Journal Article] Current-Induced Modulation of the Interfacial Dzyaloshinskii-Moriya Interaction2019

    • Author(s)
      Kato Naoaki、Kawaguchi Masashi、Lau Yong-Chang、Kikuchi Toru、Nakatani Yoshinobu、Hayashi Masamitsu
    • Journal Title

      Physical Review Letters

      Volume: 122 Issue: 25 Pages: 257-205

    • DOI

      10.1103/physrevlett.122.257205

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K14112, KAKENHI-PROJECT-15H05702
  • [Presentation] 3次元Dirac電子系ビスマスの円偏光誘起異常Hall効果とFloquet二重Weyl状態2023

    • Author(s)
      平井誉主在, 吉川尚孝, 河口真志, 林将光, 奥村駿, 岡隆史, 島野亮
    • Organizer
      日本物理学会2023年春季大会
    • Data Source
      KAKENHI-PROJECT-21K13863
  • [Presentation] キャリアドープしたディラック半金属における円偏光誘起電流2023

    • Author(s)
      宮崎 稜大、河口 真志、林 将光1
    • Organizer
      第84回応用物理学会秋季学術講演会
    • Data Source
      KAKENHI-PROJECT-21K13863
  • [Presentation] Circular polarized light induced electromotive current in Dirac semimetals and topological insulators2023

    • Author(s)
      R. Miyazaki, M. Kawaguchi and M. Hayashi
    • Organizer
      PASPS-27
    • Data Source
      KAKENHI-PROJECT-21K13863
  • [Presentation] ディラック半金属における円偏光誘起起電流2022

    • Author(s)
      宮崎稜大, 河口真志, 林将光
    • Organizer
      日本物理学会2022年秋季大会
    • Data Source
      KAKENHI-PROJECT-21K13863
  • [Presentation] Pulsed Laser Induced Chirality Switching in Tellurium Thin Films2022

    • Author(s)
      Haruo Kondo, Makoto Shoshin, Masashi Kawaguchi, Masamitsu Hayashi
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Data Source
      KAKENHI-PROJECT-21K13863
  • [Presentation] ディラック半金属PtSe2における偏光依存光応答2022

    • Author(s)
      安田 偉, 川田 拓弥, 河口 真志, 林 将光
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Data Source
      KAKENHI-PROJECT-21K13863
  • [Presentation] Dirac電子系ビスマスにおける円偏光誘起異常Hall効果2022

    • Author(s)
      平井誉主在, 吉川尚孝, 河口真志, 林将光, 奥村駿, 岡隆史, 島野亮
    • Organizer
      日本物理学会第77回年次大会
    • Data Source
      KAKENHI-PROJECT-21K13863
  • [Presentation] Determination of the Dzyaloshinskii-Moriya interaction from a single magnetic domain image using image recognition2021

    • Author(s)
      Masashi Kawaguchi、Kenji Tanabe、Keisuke Yamada、Takuya Sawa、Shun Hasegawa、Masamitsu Hayashi、Yoshinobu Nakatani
    • Organizer
      第68回応用物理学会春季学術講演会
    • Data Source
      KAKENHI-PROJECT-19H02553
  • [Presentation] Determination of the Dzyaloshinskii-Moriya interaction from a single magnetic domain image using machine learning2021

    • Author(s)
      Kenji Tanabe、Masashi Kawaguchi、Keisuke Yamada、Takuya Sawa、Shun Hasegawa、Masamitsu Hayashi、Yoshinobu Nakatani
    • Organizer
      INTERMAG 2021 Conference
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19H02553
  • [Presentation] Bi薄膜の光誘起スピンの 磁場・温度依存性2021

    • Author(s)
      梶山 陸, 河口 真志, 林 将光
    • Organizer
      日本物理学会2021年秋季大会
    • Data Source
      KAKENHI-PROJECT-21K13863
  • [Presentation] 円偏光励起によるBi薄膜からのテラヘルツ波放射の温度依存性2021

    • Author(s)
      平井誉主在,吉川尚孝, 廣瀬葉菜, 河口真志, 林将光, 島野亮
    • Organizer
      日本物理学会2021年秋季大会
    • Data Source
      KAKENHI-PROJECT-21K13863
  • [Presentation] 機械学習を利用した磁気パラメータの推定2021

    • Author(s)
      田辺賢士、河口真志、山田啓介、澤拓哉、長谷川隼、林将光、仲谷栄伸
    • Organizer
      日本物理学会第76回年次大会
    • Data Source
      KAKENHI-PROJECT-19H02553
  • [Presentation] 光で観るスピン軌道相互作用2019

    • Author(s)
      河口真志、丸井 幸博、 廣瀬葉菜、川田拓弥、 梶山陸、林将光
    • Organizer
      応用物理学会スピントロニクス研究会日本磁気学会スピントロニクス専門研究会共同主催研究会「スピンオービトロニクスの新展開」
    • Invited
    • Data Source
      KAKENHI-PROJECT-18K14112
  • 1.  Yoshinobu Nakatani (20207814)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 4 results
  • 2.  Hayashi Masamitsu (70517854)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 1 results
  • 3.  田辺 賢士 (00714859)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 4 results
  • 4.  山田 啓介 (50721792)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 4 results
  • 5.  河野 浩 (10234709)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 6.  島野 亮
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 1 results

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