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Control of superconductivity by noncollinear magnetism

Research Project

Project/Area Number 21K13883
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 13030:Magnetism, superconductivity and strongly correlated systems-related
Research InstitutionKyoto University

Principal Investigator

Narita Hideki  京都大学, 化学研究所, 特定助教 (80846709)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords超伝導 / ノンコリニア磁性 / 強相関電子系 / スピントロニクス
Outline of Research at the Start

磁性による超伝導の制御は、低消費電力で動作する超伝導量子コンピュータの応用に向けての重要な技術であるが、そのためには電子間斥力に起因する磁性を用いて、電子間引力を起源とする超伝導を制御する必要がある。
本研究では、ノンコリニア(非共線的)な磁気構造におけるヘリシティに関連する自由度が、巨視的位相の制御、すなわち超伝導状態の制御に有効であることを実証する。

Outline of Final Research Achievements

In this study, we have prepared samples containing ferromagnets, superconductors, and heavy metals to control magnetism and superconductivity toward the control of superconductivity by non-collinear magnetic structures.
As a result, we succeeded in observing the superconducting diode effect in ferromagnetic/superconducting multilayers with broken spatial inversion symmetry, in which the critical current is non-reciprocal depending on the magnetization and current direction of the ferromagnet at zero magnetic field. The complex non-reciprocal critical current behavior suggests that it reflects the complexity of the magnetic domains.
The results also suggest that the control of magnetic domain and band structure asymmetry is effective in controlling superconductivity.

Academic Significance and Societal Importance of the Research Achievements

ノンコリニア磁性と超伝導の共存に向けて作製した空間反転対称性の破れた強磁性/超伝導積層膜において、ゼロ磁場超伝導ダイオード効果が観測された。この成果により、ゼロ磁場で超伝導状態のON/OFFが可能となった。したがって、さらにノンコリニア磁性の自由度を導入することは、制御パラメータが増えるだけでなく、漏洩磁場による素子特性の低下を抑制し、超伝導素子の集積化にも有利となることが期待される。また、磁気ドメインやバンド構造の非対称性が超伝導の制御に有効であることを示唆する結果を得たことは、新奇な超伝導素子開発の設計指針となる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (22 results)

All 2024 2023 2022

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Open Access: 2 results,  Peer Reviewed: 2 results) Presentation (18 results) (of which Int'l Joint Research: 4 results,  Invited: 8 results)

  • [Journal Article] Superconducting diode effect in artificial superlattices2024

    • Author(s)
      成田 秀樹、小野 輝男
    • Journal Title

      Oyo Buturi

      Volume: 93 Issue: 2 Pages: 82-88

    • DOI

      10.11470/oubutsu.93.2_82

    • ISSN
      0369-8009, 2188-2290
    • Year and Date
      2024-02-01
    • Related Report
      2023 Annual Research Report
  • [Journal Article] Superconducting diode effect in artificial superlattices2024

    • Author(s)
      Hideki Narita、Teruo Ono
    • Journal Title

      JSAP Review

      Volume: 2024 Issue: 0 Pages: n/a

    • DOI

      10.11470/jsaprev.240206

    • ISSN
      2437-0061
    • Related Report
      2023 Annual Research Report
    • Open Access
  • [Journal Article] Magnetization Control of Zero‐Field Intrinsic Superconducting Diode Effect2023

    • Author(s)
      Narita Hideki、Ishizuka Jun、Kan Daisuke、Shimakawa Yuichi、Yanase Youichi、Ono Teruo
    • Journal Title

      Advanced Materials

      Volume: 35 Issue: 40 Pages: 2304083-2304083

    • DOI

      10.1002/adma.202304083

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Field-free superconducting diode effect in noncentrosymmetric superconductor/ferromagnet multilayers2022

    • Author(s)
      Narita Hideki、Ishizuka Jun、Kawarazaki Ryo、Kan Daisuke、Shiota Yoichi、Moriyama Takahiro、Shimakawa Yuichi、Ognev Alexey V.、Samardak Alexander S.、Yanase Youichi、Ono Teruo
    • Journal Title

      Nature Nanotechnology

      Volume: 17 Issue: 8 Pages: 823-828

    • DOI

      10.1038/s41565-022-01159-4

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] ゼロ磁場超伝導ダイオード効果2023

    • Author(s)
      成田秀樹
    • Organizer
      超伝導分科会 第68回研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Magnetization control of zero-field superconducting diode effect2023

    • Author(s)
      H. Narita
    • Organizer
      The 36th International Symposium on Superconductivity (ISS2023)
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Magnetization-mediated superconducting diode effect2023

    • Author(s)
      H. Narita
    • Organizer
      11th International Symposium on Metallic Multilayers (MML 2023)
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Control of non-reciprocal current by ferromagnetism2023

    • Author(s)
      H. Narita, J. Ishizuka, D. Kan, Y. Shimakawa, Y. Yanase, T. Ono
    • Organizer
      InterMag2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] 多元素超格子における超伝導ダイオード効果の磁化制御2023

    • Author(s)
      成田 秀樹, 石塚 淳, 菅 大介, 島川 祐一, 栁瀬 陽一, 小野 輝男
    • Organizer
      日本物理学会 第78回年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] テラヘルツ励起による超伝導ダイオードの臨界電流変化2023

    • Author(s)
      関口 文哉, 成田 秀樹, 廣理 英基, 小野 輝男, 金光 義彦
    • Organizer
      日本物理学会 第78回年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 超伝導/強磁性多層膜におけるゼロ磁場超伝導ダイオード効果2023

    • Author(s)
      H. Narita
    • Organizer
      第6回 高温超伝導フォーラム
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Fe系超伝導超格子における非相反臨界電流2023

    • Author(s)
      成田 秀樹, 石塚 淳, 菅 大介, 島川 祐一, 柳瀨 陽一, 小野 輝男
    • Organizer
      日本物理学会 2023年春季大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Zero-field superconducting diode effect in ferromagnet-superconductor hybrids2022

    • Author(s)
      H. Narita
    • Organizer
      The Superconducting spintronics 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Field-free superconducting diode effect in polar superconductor/ferromagnet multilayers2022

    • Author(s)
      H. Narita, J. Ishizuka, R. Kawarazaki, D. Kan, Y. Shiota, T. Moriyama, Y. Shimakawa, A. V. Ognev, A. S. Samardak, Y. Yanase, T. Ono
    • Organizer
      The 29th International Conference on Low Temperature Physics
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Superconducting Diode Effect in Ferromagnet-inserted Noncentrosymmetric Superconducting Multilayers2022

    • Author(s)
      H. Narita, J. Ishizuka, R. Kawarazaki, D. Kan, Y. Shiota, T. Moriyama, Y. Shimakawa, A. V. Ognev, A. S. Samardak, Y. Yanase, T. Ono
    • Organizer
      International Conference on Solid State Devices and Materials (SSDM)2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 強磁性ドーピングした超伝導多層膜における非相反臨界電流2022

    • Author(s)
      成田 秀樹, 石塚 淳, 河原崎 諒, 菅 大介, 塩田 陽一, 森山 貴広, 島川 祐一, A. V. Ognev, A. S. Samardak, 柳瀨 陽一, 小野 輝男
    • Organizer
      応用物理学会 2022年年次大会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Control of the superconducting diode effect by ferromagnetic materials2022

    • Author(s)
      H. Narita
    • Organizer
      28th Vortex Physics Workshop Japan
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Zero-field superconducting diode effect in superconducting/ferromagnetic multilayers2022

    • Author(s)
      H. Narita
    • Organizer
      KIKEN workshop 2022
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 超伝導/強磁性多層膜における超伝導ダイオード効果2022

    • Author(s)
      成田 秀樹, 石塚 淳, 河原崎 諒, 菅 大介, 塩田 陽一, 森山 貴広, 島川 祐一, A. V. Ognev, A. S. Samardak, 柳瀨 陽一, 小野 輝男
    • Organizer
      応用物理学会 2022年年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 極性構造を持つ超伝導/強磁性多層膜における超伝導ダイオード効果2022

    • Author(s)
      成田 秀樹, 石塚 淳, 河原崎 諒, 菅 大介, 塩田 陽一, 森山 貴広, 島川 祐一, A. V. Ognev, A. S. Samardak, 柳瀨 陽一, 小野 輝男
    • Organizer
      NanospecFY2021mini
    • Related Report
      2021 Research-status Report
  • [Presentation] 極性ハイブリッド超伝導多層膜における非相反臨界電流の磁化制御2022

    • Author(s)
      成田 秀樹, 石塚 淳, 河原崎 諒, 菅 大介, 塩田 陽一, 森山 貴広, 島川 祐一, A. V. Ognev, A. S. Samardak, 柳瀨 陽一, 小野 輝男
    • Organizer
      日本物理学会 2022年年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Field-free superconducting diode effect in noncentrosymmetric superconductor/ferromagnet multilayers2022

    • Author(s)
      成田 秀樹, 石塚 淳, 河原崎 諒, 菅 大介, 塩田 陽一, 森山 貴広, 島川 祐一, A. V. Ognev, A. S. Samardak, 柳瀨 陽一, 小野 輝男
    • Organizer
      The 24th International Colloquium on Magnetic Films and Surfaces (ICMFS-2022)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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