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Development of a double magnetic resonance measurement technique for direct observation of spin currents in organic semiconductors

Research Project

Project/Area Number 19K22172
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 32:Physical chemistry, functional solid state chemistry, and related fields
Research InstitutionOsaka City University

Principal Investigator

Kanemoto Katsuichi  大阪市立大学, 大学院理学研究科, 准教授 (40336756)

Project Period (FY) 2019-06-28 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Keywordsスピン流 / 磁気共鳴 / 二重共鳴 / 逆スピンホール効果 / 強磁性共鳴 / 有機半導体
Outline of Research at the Start

↑と↓のスピンが分極した状態が空間伝播することを意味する“スピン流”の研究が注目されている。本研究では、小さいスピン軌道相互作用によりスピン流伝播が有利と期待されている有機半導体に対して、直接スピン分極状態の姿を捉えるための二重磁気共鳴型スピン流観測システムを新規に構築し、有機素子におけるスピン流発生の証拠を直接示す。

Outline of Final Research Achievements

We have constructed a pump-probe type dual magnetic resonance spin current observation system in which a ferromagnetic electrode is spin pumped by ferromagnetic resonance in the X band to generate a spin current, and the accumulated state of spin polarization after propagation can be excited directly from an antenna at a resonance frequency different from the X band. We confirmed that microwave excitation from the antenna can actually be performed. We also confirmed that the double resonance experiment is possible without interference between the X band microwaves and the microwaves from the antenna in the device consisting of ferromagnetic electrode 1/paramagnetic layer/ferromagnetic electrode 2.

Academic Significance and Societal Importance of the Research Achievements

近年スピン分極状態の空間伝播を意味する“スピン流”に関する研究が注目されているが、その伝播を直接観測することは難しかった。この研究では、そのスピン流を発生させるマイクロ波照射システムと、スピン流の到達を検出できるマイクロ波吸収観測システムを組み合わせ、スピン流の伝達を評価できる計測系の構築に取り組み、実際に両方のマイクロ波が干渉せず、実験が行えることを確認できた。今後スピン流物性の検証に活用できる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (13 results)

All 2022 2021 2020 2019

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (8 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Power-Dependent Characteristics of Spin Current Transfer in Metal Bilayer Devices under High-Power Pulse Excitation2022

    • Author(s)
      Kenta Nakahashi, Kohei Takaishi, Takayuki Suzuki, Katsuichi Kanemoto
    • Journal Title

      ACS Applied Materials & Interfaces

      Volume: 14 Issue: 18 Pages: 21217-21223

    • DOI

      10.1021/acsami.2c03418

    • URL

      https://ocu-omu.repo.nii.ac.jp/records/2019585

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantifying Power Flow Processes Mediated by Spin Currents2021

    • Author(s)
      Kenta Nakahashi, Kohei Takaishi, Takayuki Suzuki, Katsuichi Kanemoto
    • Journal Title

      ACS Applied Electronic Materials

      Volume: 3 Issue: 4 Pages: 1663-1670

    • DOI

      10.1021/acsaelm.0c01138

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Electrically-detected and optically-detected magnetic resonance for organic semiconductor devices2020

    • Author(s)
      鐘本 勝一, 鈴木 貴之
    • Journal Title

      Oyo Buturi

      Volume: 89 Issue: 1 Pages: 25-29

    • DOI

      10.11470/oubutsu.89.1_25

    • NAID

      130007783775

    • ISSN
      0369-8009, 2188-2290
    • Year and Date
      2020-01-10
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Electron-Hole Pairs Generated in the Crystalline Phase of Polymer Diodes Studied by Electrically Detected Magnetic Resonance Techniques2019

    • Author(s)
      Kousuke Iwamoto, Yuto Hayakawa, Shuto Hatanaka, Takayuki Suzuki, and Katsuichi Kanemoto
    • Journal Title

      Journal of Physical Chemistry C

      Volume: 123 Issue: 43 Pages: 26116-26123

    • DOI

      10.1021/acs.jpcc.9b07796

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 磁気共鳴による強磁性金属/有機導体界面相互作用の検証2021

    • Author(s)
      髙石晃平, 鐘本勝一, 鈴木貴之
    • Organizer
      日本物理学会・2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Quantifying Power Flow Processes Mediated by Spin Currents in Metal Bilayer Devices2021

    • Author(s)
      Katsuichi Kanemoto
    • Organizer
      ISMAR APNMR NMRSJ SEST 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 強磁性金属/有機導体界面におけるスピン伝達2020

    • Author(s)
      高石晃平, 鐘本勝一, 鈴木貴之
    • Organizer
      電子スピンサイエンス学会2020
    • Related Report
      2020 Research-status Report
  • [Presentation] 高強度μ波パルス照射下における逆スピンホール効果2020

    • Author(s)
      鐘本勝一, 中橋健太, 鈴木貴之
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 有機半導体素子における磁場効果と磁気キャパシタンス2019

    • Author(s)
      鐘本勝一
    • Organizer
      日本磁気学会第224回研究会 磁気キャパシタンス効果の新展開
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Origin of Electrically-Detected Magnetic Resonance Signals in Organic Semiconductor Diodes2019

    • Author(s)
      Katsuichi Kanemoto, Kousuke Iwamoto, Shuto Hatanaka, Takayuki Suzuki
    • Organizer
      13th Japanese-Russian International Workshop on Open Shell Compounds and Molecular Spin Devices
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 高強度マイクロ波パルス照射下における逆スピンホール効果2019

    • Author(s)
      中橋 健太, 鐘本 勝一, 鈴木 貴之
    • Organizer
      応用物理学会 2019年秋季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 高強度マイクロ波パルス照射下における逆スピンホール効果2019

    • Author(s)
      鐘本勝一, 中橋健太, 鈴木貴之
    • Organizer
      電子スピンサイエンス学会年会2019
    • Related Report
      2019 Research-status Report
  • [Patent(Industrial Property Rights)] スピン流デバイス測定システム及びスピン流デバイス測定方法2020

    • Inventor(s)
      鐘本勝一、鈴木貴之
    • Industrial Property Rights Holder
      日本電子株式会社
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-142653
    • Filing Date
      2020
    • Related Report
      2020 Research-status Report

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Published: 2019-07-04   Modified: 2023-01-30  

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