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マグノニクス応用へ向けたテラヘルツマグノンの研究

Research Project

Project/Area Number 18J22219
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Applied materials
Research InstitutionKyoto University

Principal Investigator

李 恬  京都大学, 理学研究科, 特別研究員(DC1)

Project Period (FY) 2018-04-25 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2020: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2019: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2018: ¥1,000,000 (Direct Cost: ¥1,000,000)
Keywordsスピン波 / スピントロ二クス / テラヘルツマグノン / 磁気抵抗
Outline of Annual Research Achievements

球や円形に波が全反射を繰り返すことにより閉じ込められる現象をWhispering Gallery Mode(WGM)と呼ぶが、スピン波はスピンの歳差運動の情報を伝播する波として同じ効果が存在すると期待されています。本研究では磁性薄膜の円盤の壁に伝わる静磁表面スピン波(MSSW)のWGMに着目しました。しかし、WGMを発生させるには、スピン波の波長から円盤の円周の長さを計算し円盤を設計する必要があるため、円盤の壁に伝わるMSSWの分散関係が必要であるが、こういったMSSWの分散関係を調査した報告は少なかったです。そこで、今年度ではスピン波のWGMに向けてマイクロマグネティックシミュレーションを用いてフェリー磁性体薄膜の外周に伝わるスピン波について調査し、分散関係を確立しました。

Research Progress Status

令和2年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和2年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (11 results)

All 2021 2020 2019 2018

All Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (6 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Low Current Driven Vertical Domain Wall Motion Memory with an Artificial Ferromagnet2021

    • Author(s)
      Hung Y. M.、Li T.、Hisatomi R.、Shiota Y.、Moriyama T.、Ono T.
    • Journal Title

      Journal of the Magnetics Society of Japan

      Volume: 45 Issue: 1 Pages: 6-11

    • DOI

      10.3379/msjmag.2011R002

    • NAID

      130007965462

    • ISSN
      1882-2924, 1882-2932
    • Year and Date
      2021-01-01
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Chromatic Aberration Effect in Refraction of Spin Waves2020

    • Author(s)
      Li T.、Taniguchi T.、Shiota Y.、Moriyama T.、Ono T.
    • Journal Title

      Journal of the Magnetics Society of Japan

      Volume: 44 Issue: 6 Pages: 133-136

    • DOI

      10.3379/msjmag.2011L003

    • NAID

      130007934288

    • ISSN
      1882-2924, 1882-2932
    • Year and Date
      2020-11-01
    • Related Report
      2020 Annual Research Report
  • [Journal Article] Observation of superconducting diode effect2020

    • Author(s)
      Ando Fuyuki、Miyasaka Yuta、Li Tian、Ishizuka Jun、Arakawa Tomonori、Shiota Yoichi、Moriyama Takahiro、Yanase Youichi、Ono Teruo
    • Journal Title

      Nature

      Volume: 584 Issue: 7821 Pages: 373-376

    • DOI

      10.1038/s41586-020-2590-4

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Switchable giant nonreciprocal frequency shift of propagating spin waves in synthetic antiferromagnets2020

    • Author(s)
      Ishibashi Mio、Shiota Yoichi、Li Tian、Funada Shinsaku、Moriyama Takahiro、Ono Teruo
    • Journal Title

      Science Advances

      Volume: 6 Issue: 17

    • DOI

      10.1126/sciadv.aaz6931

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Possible contribution of high-energy magnons to unidirectional magnetoresistance in metallic bilayers2019

    • Author(s)
      Kim Kab-Jin、Li Tian、Kim Sanghoon、Moriyama Takahiro、Koyama Tomohiro、Chiba Daichi、Lee Kyung-Jin、Lee Hyun-Woo、Ono Teruo
    • Journal Title

      Applied Physics Express

      Volume: 12 Issue: 6 Pages: 063001-063001

    • DOI

      10.7567/1882-0786/ab1b54

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Snell’s law for isotropically propagating spin wave2019

    • Author(s)
      Tian Li
    • Organizer
      Magnonics2019
    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Snell’s law for isotropically propagating spin wave2019

    • Author(s)
      Tian Li
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Snell’s law for isotropically propagating spin wave2019

    • Author(s)
      Tian Li
    • Organizer
      日本磁気学会 第43回学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Snell’s Law for Magnetostatic Forward Volume Wave2018

    • Author(s)
      Tian Li
    • Organizer
      2018 International Conference on Solid State Deices and Materials (SSDM2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Origin of threshold current density for asymmetric magnetoresistance in Py/Pt bilayers2018

    • Author(s)
      Tian Li
    • Organizer
      2018 International Conference on Magnetism (ICM2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Origin of threshold current density for asymmetric magnetoresistance in Py/Pt bilayers2018

    • Author(s)
      Tian Li
    • Organizer
      the 23rd International Colloquium on Magnetic Films and Surfaces (ICMFS2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research

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Published: 2018-05-01   Modified: 2024-03-26  

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