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Efficient terahertz emission based on spin caloritronics

Research Project

Project/Area Number 18KK0377
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (A))

Allocation TypeMulti-year Fund
Research Field Applied materials
Research InstitutionNagoya University (2020-2023)
Tohoku University (2018-2019)

Principal Investigator

Mizuguchi Masaki  名古屋大学, 未来材料・システム研究所, 教授 (50397759)

Project Period (FY) 2019 – 2023
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥15,600,000 (Direct Cost: ¥12,000,000、Indirect Cost: ¥3,600,000)
Keywordsスピンカロリトロニクス / スピンエレクトロニクス / テラヘルツ波 / ネルンスト効果
Outline of Research at the Start

超短パルスレーザーを用いたスピンダイナミクスの研究手法を取り入れることにより、スピンカロリトロニクスを基軸とした高効率テラヘルツ波の発生機能の開拓を目指す。成熟期に入ったスピントロニクスの発展分野の一つとして、電流・スピン流と熱流との相関を取り扱う「スピンカロリトロニクス」とよばれる新しい研究が注目を集めている。この分野で注目されている異常ネルンスト効果を基軸とした、全く新しいテラヘルツ波の発生原理を実証し、その高効率化を図る。

Outline of Final Research Achievements

The purpose of this study is to create spin caloritronics phenomena based on completely new physical concepts by incorporating an ultrashort laser pulse method to study spin dynamics. Time-resolved measurements of the anomalous Nernst effect were carried out by irradiating the FePt thin film with laser pulse, and the fast anomalous Nernst effect was successfully observed. In addition, terahertz emission was observed by irradiating a Pt / FePt bilayer thin film with laser pulse, and it was clarified that multiple physical mechanisms contribute to the terahertz emission. These results suggest the possibility of realising highly efficient terahertz oscillation phenomena based on spin caloritronics.

Academic Significance and Societal Importance of the Research Achievements

本研究では、磁性薄膜にパルスレーザーを照射することにより、テラヘルツ波の放射を観測し、複数の物理メカニズムがテラヘルツ波の放射に寄与していることを明らかにした。そのため、熱流とテラヘルツ領域の電磁波の相関に係る包括的な物理の解明・学理の構築が図られ、学術的意義があった。また、本研究で得られた成果を応用することにより、医療分野における可視化技術や非破壊検査、あるいは近距離通信などへの応用展開が実現されることが見込まれる。そのため、新たなデバイス創成へのパラダイムを拓くことにより、市場規模の大きな分野へインパクトを与えることが見込まれ、社会的意義も大きいと考えられる。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (31 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 1 results) Presentation (20 results) (of which Int'l Joint Research: 7 results,  Invited: 11 results) Book (1 results) Remarks (1 results)

  • [Int'l Joint Research] ベルリン自由大学(ドイツ)2023

    • Year and Date
      2023-07-02
    • Related Report
      2023 Annual Research Report
  • [Journal Article] 異常ネルンスト効果による熱電変換現象2024

    • Author(s)
      水口将輝
    • Journal Title

      固体物理

      Volume: 696 Pages: 55-65

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin Seebeck effect mediated reversal of vortex-Nernst effect in superconductor-ferromagnet bilayers2023

    • Author(s)
      Sharma Himanshu、Wen Zhenchao、Mizuguchi Masaki
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1

    • DOI

      10.1038/s41598-023-31420-2

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Enhancement of the anomalous Nernst effect in epitaxial Fe4N films grown on SrTiO3(001) substrates with oxygen deficient layers2022

    • Author(s)
      Keita Ito, Jian Wang, Yusuke Shimada, Himanshu Sharma, Masaki Mizuguchi, Koki Takanashi
    • Journal Title

      Journal of Applied Physics

      Volume: 132 Issue: 13

    • DOI

      10.1063/5.0102928

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] New Developments in Thermoelectric Materials Based on the Thermomagnetic Effects2021

    • Author(s)
      Mizuguchi Masaki
    • Journal Title

      Materia Japan

      Volume: 60 Issue: 9 Pages: 558-561

    • DOI

      10.2320/materia.60.558

    • NAID

      130008081748

    • ISSN
      1340-2625, 1884-5843
    • Year and Date
      2021-09-01
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Nanostructure design for high performance thermoelectric materials based on anomalous Nernst effect using metal/semiconductor multilayer2021

    • Author(s)
      Kitaura Reona、Ishibe Takafumi、Sharma Himanshu、Mizuguchi Masaki、Nakamura Yoshiaki
    • Journal Title

      Applied Physics Express

      Volume: 14 Issue: 7 Pages: 075002-075002

    • DOI

      10.35848/1882-0786/ac05db

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] ナノスケール磁性薄膜における異常ネルンスト効果2021

    • Author(s)
      水口 将輝
    • Journal Title

      まぐね

      Volume: 16 Pages: 285-290

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Anomalous Nernst effect in Cox(MgO)1-x granular thin films2020

    • Author(s)
      Sheng P.、Fujita T.、Mizuguchi M.
    • Journal Title

      Applied Physics Letters

      Volume: 116 Issue: 14 Pages: 142403-142403

    • DOI

      10.1063/1.5140461

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Scanning magneto-optical Kerr effect (MOKE) measurement with element-selectivity by using a soft x-ray free-electron laser and an ellipsoidal mirror2020

    • Author(s)
      Kubota Yuya、Motoyama Hiroto、Yamaguchi Gota、Egawa Satoru、Takeo Yoko、Mizuguchi Masaki、Sharma Himanshu、Owada Shigeki、Tono Kensuke、Mimura Hidekazu、Matsuda Iwao、Yabashi Makina
    • Journal Title

      Applied Physics Letters

      Volume: 117 Issue: 4 Pages: 042405-042405

    • DOI

      10.1063/5.0012348

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] Anomalous Nernst effect in nanostructured materials2024

    • Author(s)
      Masaki Mizuguchi
    • Organizer
      Iwate Spintronics School
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Anomalous Nernst effect in Ferromagnetic Nano-structures2023

    • Author(s)
      Masaki Mizuguchi
    • Organizer
      韓国冬期磁気学会(KMS)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 磁性ナノ構造における熱電効果2023

    • Author(s)
      水口将輝
    • Organizer
      光・熱・電気と磁気の相互作用の活用技術調査専門委員会研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 異常ネルンスト効果の基礎2023

    • Author(s)
      水口将輝
    • Organizer
      第244回研究会 /第7回磁気センサ専門研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Thermoelectric power generation by magnetic nano-structures2023

    • Author(s)
      水口将輝
    • Organizer
      物性研短期研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Large anomalous Nernst effect s in Ge doped Co thin films2023

    • Author(s)
      Takuya Tsujimoto, Takeshi Fujita, Toshio Miyamachi, Masaki Mizuguchi
    • Organizer
      第70回応用物理学会春季学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Co/Au/Fe交換結合多層膜における異常ネルンスト効果2023

    • Author(s)
      福田豊輝, 宮町俊生, 水口将輝
    • Organizer
      IEEE Magnetics Society 名古屋支部 若手研究会
    • Related Report
      2022 Research-status Report
  • [Presentation] Energy Conversion Materials with Magnetic Nano-structures2022

    • Author(s)
      Masaki Mizuguchi
    • Organizer
      International Conference on Functional Materials Science 2022 (ICFMS 2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Anomalous Nernst effect in semiconductor / ferromagnetic metal multilayer2022

    • Author(s)
      M. Mizuguchi, R. Kitaura, H. Sharma, T. Ishibe, Y. Nakamura
    • Organizer
      The 67th Annual Conference on Magnetism and Magnetic Materials (MMM 2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Spin caloritronic Effect in Co-Ge Granular Thin Films2022

    • Author(s)
      Takuya Tsujimoto, Toshio Miyamachi, Masaki Mizuguchi
    • Organizer
      The 22nd International Vacuum Congress (IVC-22)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Thermoelectric Conversion in Nanostructured Magnetic Materials2022

    • Author(s)
      水口将輝
    • Organizer
      2022 年度 ナノ構造・物性-ナノ機能・応用部会 合同シンポジウム
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] ネルンスト素子における熱電変換現象の実証2022

    • Author(s)
      高橋侑暉, 宮町俊生, 水口将輝
    • Organizer
      第59回日本伝熱シンポジウム
    • Related Report
      2022 Research-status Report
  • [Presentation] スピン波伝搬による熱輸送現象の観測2022

    • Author(s)
      池田優, 宮町俊生, 水口将輝
    • Organizer
      第59回日本伝熱シンポジウム
    • Related Report
      2022 Research-status Report
  • [Presentation] Anomalous Nernst effect in Co/Au/Fe trilayer thin films2022

    • Author(s)
      Hiroki Fukuda, Toshio Miyamachi, Masaki Mizuguchi
    • Organizer
      第71回応用物理学会春季学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Anomalous Nernst and Hall effect in Ge doped Co thin films2022

    • Author(s)
      Takuya Tsujimoto, Toshio Miyamachi, Masaki Mizuguchi
    • Organizer
      第71回応用物理学会春季学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Thermoelectric Generation in Nanostructured Magnetic Materials2021

    • Author(s)
      Masaki Mizuguchi
    • Organizer
      International Conference on Materials and Systems for Sustainability 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ナノ構造における異常ネルンスト効果の物理と応用の新展開2021

    • Author(s)
      水口将輝
    • Organizer
      IEEE Magnetics Society 名古屋支部 若手研究会(招待講演)
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Nanostructured magnetic materials for thermoelectric generation2020

    • Author(s)
      M. Mizuguchi
    • Organizer
      The 4th Symposium for The Core Research Cluster for Materials Science and the 3rd Symposium on International Joint Graduate Program in Materials Science
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 異常ネルンスト効果におけるスピン流2020

    • Author(s)
      水口将輝
    • Organizer
      大阪大学大学院基礎工学研究科附属スピントロニクス学術連携研究教育センター 熱-スピン流・スピン波研究会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Thickness dependent Nernst effect for superconducting NbN thin films2020

    • Author(s)
      H. Sharma, Z. Wen, K. Takanashi, M. Mizuguchi
    • Organizer
      第67回 応用物理学会春季学術講演会
    • Related Report
      2020 Research-status Report
  • [Book] Nanomagnetic Materials - Fabrication, Characterization and Application, Micro & Nano Technologies Series2021

    • Author(s)
      Masaki Mizuguchi
    • Total Pages
      812
    • Publisher
      Elsevier
    • ISBN
      9780128223499
    • Related Report
      2021 Research-status Report
  • [Remarks] 名古屋大学水口研究室ホームページ

    • URL

      https://mizuguchi-gr.jp/

    • Related Report
      2023 Annual Research Report

URL: 

Published: 2019-02-06   Modified: 2025-01-30  

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