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Development of hydrogen controllabel GMR multilayer

Research Project

Project/Area Number 18K04745
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 26040:Structural materials and functional materials-related
Research InstitutionUniversity of Toyama

Principal Investigator

Akamaru Satoshi  富山大学, 学術研究部理学系, 助教 (10420324)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywordsパラジウム合金 / 磁性多層膜 / 巨大磁気抵抗効果 / 水素吸蔵合金 / 水素 / 磁気抵抗 / Pd合金
Outline of Final Research Achievements

PdCo/Cu magnetic multilayer was constructed and its magnetoresistance under nitrogen and hydrogen gas mixture were measured. The multilayer showed giant magnetoresistance (GMR) effect after adjusting Co concentration and structure in PdCo. The GMR effect was reduced under the nitrogen and hydrogen gas mixture, because the absorbed hydrogen in PdCo reduced its magnetization. The GMR effect could be adjusted by changing the hydrogen concentration in gas mixture.

Academic Significance and Societal Importance of the Research Achievements

巨大磁気抵抗効果を外部因子により制御できることは、大きな抵抗変化を水素センサに利用できる可能性がある。また巨大磁気抵抗効果が応用されている産業においても、素子の改良・改善につながる可能性がある。また、水素吸蔵合金の電子物性分野への応用といった視点から、今後学術的に新たな展開が広がることが期待される。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (6 results)

All 2020 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (5 results)

  • [Journal Article] Hydrogenation effect on magnetic properties of Pd-Co alloys2019

    • Author(s)
      Akamaru Satoshi、Kimura Akihiro、Hara Masanori、Nishimura Katsuhiko、Abe Takayuki
    • Journal Title

      Journal of Magnetism and Magnetic Materials

      Volume: 484 Pages: 8-13

    • DOI

      10.1016/j.jmmm.2019.03.121

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] Pd/PdCo及びCu/PdCo薄膜の異常ホール効果と水素応答2020

    • Author(s)
      山本晴也、赤丸悟士
    • Organizer
      日本金属学会第166回講演大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 強磁性Pd基合金薄膜のホール効果と水素検出素子への応用2020

    • Author(s)
      赤丸悟士、山本晴也
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] PdCo薄膜の異常ホール効果とその水素応答2019

    • Author(s)
      赤丸悟士、山本晴也、鈴木佑弥、原正憲
    • Organizer
      日本金属学会 2019年春季(第164回)講演大会
    • Related Report
      2018 Research-status Report
  • [Presentation] PdCo合金薄膜の水素吸収/放出時の電気抵抗変化に及ぼす磁場の影響2018

    • Author(s)
      鈴木佑弥、山本晴也、赤丸悟士、原正憲
    • Organizer
      第163回 日本金属学会秋期講演大会
    • Related Report
      2018 Research-status Report
  • [Presentation] PdCo合金へのAgまたはFe添加による時期特性の水素反応2018

    • Author(s)
      山本晴也、鈴木佑弥、赤丸悟士、原正憲
    • Organizer
      .第163回 日本金属学会秋期講演大会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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