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Time-and-space-resolved investigation of the spin Peltier effect

Research Project

Project/Area Number 18K14116
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 29010:Applied physical properties-related
Research InstitutionNational Institute for Materials Science

Principal Investigator

IGUCHI Ryo  国立研究開発法人物質・材料研究機構, 磁性・スピントロニクス材料研究拠点, 主任研究員 (40707717)

Project Period (FY) 2018-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywordsスピンペルチェ効果 / スピン流 / サーモリフレクタンス / スピンカロリトロニクス / 熱電効果
Outline of Final Research Achievements

We studied the mechanism of the spin Peltier effect (SPE), which induces a heat current in response to a spin current in conductor/magnetic materials junctions.
While the SPE shows interesting features such as the localized temperature modulation along the junction interface, its exact temperature distribution remains to be explored and thus the physical understanding and the knowledge for using SPE-based thermoelectric devices are lacking. In this study, we performed high-speed thermoreflectance measurements of the SPE and revealed its response time and length scale of the induced temperature modulation.

Academic Significance and Societal Importance of the Research Achievements

スピンペルチェ効果では、伝導体/磁性体接合に沿って伝搬する熱流の長さスケールが主要な役割を果たしていることがわかった。スピンペルチェ効果を強く発現させる物質の探索に向けては、長いスケールでスピン流を運べる物質が適切であり、今後本手法をベースとして長さスケールと運ぶ量を区別して開拓していくことで、大きなスピンペルチェ効果を示す材料の開発ができると期待される。また、本研究課題による一連の研究により、スピンペルチェ効果の熱的な特性とその発現機構の解明が行なわれただけでなく、時間分解や空間分解を用いたスピン駆動熱電変換のサブマイクロスケールにおける新しい研究の基盤を築くことができた。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • Research Products

    (10 results)

All 2020 2019

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Transient response of the spin Peltier effect revealed by lock-in thermoreflectance measurements2020

    • Author(s)
      Takumi Yamazaki, Ryo Iguchi, Tadakatsu Ohkubo, Hosei Nagano, and Kenichi Uchida
    • Journal Title

      Phys. Rev. B.

      Volume: 101 Issue: 2 Pages: 020415-020415

    • DOI

      10.1103/physrevb.101.020415

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin-mediated charge-to-heat current conversion phenomena in ferromagnetic binary alloys2020

    • Author(s)
      Miura Asuka、Iguchi Ryo、Seki Takeshi、Takanashi Koki、Uchida Ken-ichi
    • Journal Title

      Physical Review Materials

      Volume: 4 Issue: 3 Pages: 034409-034409

    • DOI

      10.1103/physrevmaterials.4.034409

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhancement of charge-to-spin current conversion in a Ni/Pt bilayer film detected by spin Peltier effect2020

    • Author(s)
      Takumi Yamazaki, Ryo Iguchi, Hosei Nagano, and Ken-ichi Uchida
    • Journal Title

      Jpn. J. Appl. Phys

      Volume: 59 Issue: 5 Pages: 050901-050901

    • DOI

      10.35848/1347-4065/ab8025

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thermoelectric microscopy of magnetic skyrmions2019

    • Author(s)
      Iguchi Ryo、Kasai Shinya、Koshikawa Kazushige、Chinone Norimichi、Suzuki Shinsuke、Uchida Ken-ichii
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1

    • DOI

      10.1038/s41598-019-54833-4

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Systematic Investigation of Anisotropic Magneto-Peltier Effect and Anomalous Ettingshausen Effect in Ni Thin Films2019

    • Author(s)
      Das Raja, Iguchi Ryo, and Uchida Ken-ichi
    • Journal Title

      Physical Review Applied

      Volume: 11 Issue: 3

    • DOI

      10.1103/physrevapplied.11.034022

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] 強磁性金属中のスピンホール効果を用いたスピンペルチェ効果2020

    • Author(s)
      井口 亮、山崎 匠、長野 方星、内田 健一
    • Organizer
      日本物理学会 第75回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Thermoreflectance Measurement of the Spin Peltier Effect2019

    • Author(s)
      Yamazaki Takumi、Iguchi Ryo、Ohkubo Tadakatsu、Nagano Hosei、Uchida Ken-ichi
    • Organizer
      The 2019 Magnetism and Magnetic Materials Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lock-in thermoreflectance as a tool for investigating spin caloritronics2019

    • Author(s)
      山崎 匠、井口 亮、長野 方星、内田 健一
    • Organizer
      応用物理学会 2019年 春季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Measurement of the spin Peltier effect using thermoreflectance2019

    • Author(s)
      Yamazaki Takumi、Iguchi Ryo、Ohkubo Tadakatsu、Nagano Hosei、Uchida Ken-ichi
    • Organizer
      Spin Caloritronics X
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lock-in thermoreflectance as a tool for investigating spin caloritronics2019

    • Author(s)
      山崎匠, 井口 亮, 長野 方星, 内田 健一
    • Organizer
      応用物理学会 2019年 春季学術講演会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2021-02-19  

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