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Strain-induced magnetization switching for magnetic single crystal thin film grown on freestanding membrane

Research Project

Project/Area Number 22K18894
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 26:Materials engineering and related fields
Research InstitutionTohoku University

Principal Investigator

Seki Takeshi  東北大学, 金属材料研究所, 教授 (40579611)

Co-Investigator(Kenkyū-buntansha) 塩貝 純一  大阪大学, 大学院理学研究科, 准教授 (30734066)
Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords歪み / 磁気異方性 / 自立型メンブレン
Outline of Research at the Start

フレキシブル電子デバイスの高性能化・多機能化のためには、「歪み」という物理パラメータの制御と活用が不可欠である。本研究課題では、自立型メンブレン基板の持つ単結晶かつ柔らかいという特徴に着目し、自立型メンブレン上に磁性薄膜を単結晶成長させることで、巨大歪みが磁気異方性、磁化、さらには交換相互作用に与える影響を明らかにする。そして、格子変形がもたらす反対称な交換相互作用により、純粋な歪みだけで誘起する磁化スイッチング技術に挑戦する。

Outline of Final Research Achievements

This study has paid attention to the usefulness of single-crystal like magnetic thin films grown on freestanding membranes and carried out research focusing on elucidating their magnetic properties.
First, the conditions for epitaxial growth on freestanding membranes were investigated for the Ni and Fe4N layers and established a method for evaluating magnetic properties under the application of strain. The changes in magnetic anisotropy, saturation magnetization, and ferromagnetic transition temperature due to strain were successfully observed. The obtained experimental results also suggested that epitaxially grown thin films are effective to evaluate antisymmetric exchange interactions caused by lattice deformation. In addition, ferromagnetic materials exhibiting a larger magnetoelastic effect were explored, and the epitaxial thin films of Fe-Ga alloys were successfully developed.

Academic Significance and Societal Importance of the Research Achievements

ウェアラブルやユビキタスを支えるフレキシブル電子デバイスの高性能化・多機能化は、今後の持続可能な社会づくりの鍵となる。磁性体における歪みを使ってデバイスの新機能を見出すためには、薄膜形態において歪みの影響を理解することが不可欠である。
本研究は、「単結晶」かつ「柔らかい」という特性を活用できる自立型メンブレンに着目し、自立型メンブレンを使った薄膜の成長条件や評価技術を確立し、歪みによる基本的な磁気特性の変調に成功した。磁気弾性特性の理解を深化させる学術的に意義深い成果である。また、歪みを使った新しい磁化スイッチング技術の開発指針を与えるものでもあり、応用の観点でも意義のある成果と言える。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (22 results)

All 2024 2023 2022 Other

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (16 results) (of which Int'l Joint Research: 3 results,  Invited: 4 results) Remarks (2 results)

  • [Journal Article] Influence of the strain effect on magnetocrystalline anisotropy in Co2Fe0.4Mn0.6Si Heusler alloys2023

    • Author(s)
      A. Nabialek, O. M. Chumak, P. Aleshkevych, J. Z. Domagala, A. Pacewicz, B. Salski, J. Krupka, T. Seki, K. Takanashi, L. T. Baczewski and H. Szymczak
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1

    • DOI

      10.1038/s41598-023-43979-x

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Magnetic layer thickness influence on magnetoelastic properties anisotropy in Co2Fe0.4Mn0.6Si Heusler alloy thin films2023

    • Author(s)
      Adam Nabialek, Oleksandr Chumak, Takeshi Seki, Koki Takanashi, Lech T. Baczewski and Henryk Szymczak
    • Journal Title

      IEEE Transactions on Magnetics

      Volume: 59 Issue: 11 Pages: 1-5

    • DOI

      10.1109/tmag.2023.3287324

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Impact of epitaxial strain relaxation on ferromagnetism in a freestanding La2/3Sr1/3MnO3 membrane2023

    • Author(s)
      Atsumi Ryuji、Shiogai Junichi、Yamazaki Takumi、Seki Takeshi、Ueda Kohei、Matsuno Jobu
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 62 Issue: 10 Pages: 100902-100902

    • DOI

      10.35848/1347-4065/ad0270

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Superconducting FeSe membrane synthesized by etching of water-soluble Sr3Al2O6 layer2023

    • Author(s)
      Junichi Shiogai and Atsushi Tsukazaki
    • Journal Title

      Applied Physics Letters

      Volume: 122 Issue: 5 Pages: 52602-52602

    • DOI

      10.1063/5.0135702

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] Correlation between magnetostriction and magnetic damping2024

    • Author(s)
      K. Ito, T. Seki
    • Organizer
      GP-Spin/AIMR Mini Workshop on (Quantum) Magnonics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 磁性窒化物における磁気弾性特性の巨大変調2024

    • Author(s)
      伊藤啓太、I. Kurniawan, 嶋田雄介、三浦良雄、遠藤恭、関剛斎
    • Organizer
      令和5年度 通研共同プロジェクト研究 成果報告会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 磁性窒化物における磁気弾性特性の巨大変調2024

    • Author(s)
      伊藤啓太、Ivan Kurniawan、嶋田雄介、三浦良雄、遠藤恭、関剛斎
    • Organizer
      日本金属学会2024年春期第174回講演大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Fe4N窒化物系における磁気弾性特性の巨大変調2024

    • Author(s)
      伊藤啓太、Ivan Kurniawan、嶋田雄介、三浦良雄、遠藤恭、関剛斎
    • Organizer
      Spin-RNJ 2023年度報告会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Giant Tunability of Magnetoelasticity in Fe4N System2024

    • Author(s)
      K. Ito, T. Seki
    • Organizer
      Iwate Spintronics School, 2024 Winter
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 水溶性犠牲層を用いて作製した薄膜積層構造における物性と機能2024

    • Author(s)
      塩貝純一
    • Organizer
      光・スピン・量子物性セミナー
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Correlation between magnetostriction and magnetic damping in nitride films2023

    • Author(s)
      K. Ito, I. Kurniawan, Y. Miura, Y. Endo, and T. Seki
    • Organizer
      2023年第84回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 磁性窒化物薄膜における磁歪と磁気ダンピングの相関2023

    • Author(s)
      伊藤啓太、Ivan Kurniawan、三浦良雄、遠藤恭、関剛斎
    • Organizer
      第47回日本磁気学会学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 磁性窒化物における磁気弾性特性の巨大変調2023

    • Author(s)
      伊藤啓太、関剛斎
    • Organizer
      第9回 “スピン・軌道・多極子がもたらす新規界面物性の開拓”に関する研究会/第5回 基盤研究(S)”トンネル磁気抵抗効果の新展開”研究会/第26回 界面スピン軌道研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Correlation between magnetostriction and magnetic damping in Fe4-xMnxN and Fe4-yCoyN films2023

    • Author(s)
      K. Ito, I. Kurniawan, Y. Miura, Y. Endo, T. Seki
    • Organizer
      Summit of Materials Science (SMS) 2023 and GIMRT User Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 自立型La0.67Sr0.33MnO3メンブレンにおける磁気特性評価2023

    • Author(s)
      厚美 竜二、塩貝 純一、関 剛斎、山崎 匠、上田 浩平、松野 丈夫
    • Organizer
      2023年第84回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 水溶性犠牲層を用いて作製した自立型FeSeメンブレンの超伝導特性評価2023

    • Author(s)
      塩貝純一、塚﨑敦
    • Organizer
      2023年第84回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Structure and magnetic properties of epitaxial Fe-Ga thin films2023

    • Author(s)
      H. Ding, T. Seki, K. Ito, Y. Endo, K. Takanashi
    • Organizer
      2023年第70回応用物理学会春季学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Fe-Gaエピタキシャル薄膜の作製と磁歪特性2022

    • Author(s)
      丁浩、関剛斎、遠藤恭、高梨弘毅
    • Organizer
      電気学会「マグネティックス研究会」
    • Related Report
      2022 Research-status Report
  • [Presentation] Fe-Gaエピタキシャル薄膜の作製と磁歪特性2022

    • Author(s)
      丁浩、関剛斎、遠藤恭、伊藤啓太、高梨弘毅
    • Organizer
      第46回日本磁気学会学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Fe-Gaエピタキシャル薄膜における磁気ひずみ2022

    • Author(s)
      丁浩、関剛斎、遠藤恭、伊藤啓太、高梨弘毅
    • Organizer
      日本金属学会 2022年秋期(第171回)講演大会
    • Related Report
      2022 Research-status Report
  • [Remarks] 研究室ホームページ

    • URL

      https://magmatelab.imr.tohoku.ac.jp/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 研究室ホームページ

    • URL

      http://magmatelab.imr.tohoku.ac.jp

    • Related Report
      2022 Research-status Report

URL: 

Published: 2022-07-05   Modified: 2025-01-30  

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