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Elucidation of factors controlling critical current density of high-Tc cuprates with a focus on the electronic phase diagram

Research Project

Project/Area Number 21H01377
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21050:Electric and electronic materials-related
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Ishida Shigeyuki  国立研究開発法人産業技術総合研究所, エレクトロニクス・製造領域, 主任研究員 (90738064)

Co-Investigator(Kenkyū-buntansha) 永崎 洋  国立研究開発法人産業技術総合研究所, エレクトロニクス・製造領域, 首席研究員 (20242018)
辻本 学  国立研究開発法人産業技術総合研究所, エレクトロニクス・製造領域, 主任研究員 (20725890)
西尾 太一郎  東京理科大学, 理学部第二部物理学科, 教授 (40370449)
柏木 隆成  筑波大学, 数理物質系, 講師 (40381644)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2023: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2022: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2021: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Keywords臨界電流密度 / 磁束ピン止め / 超伝導臨界温度 / 上部臨界磁場 / 超流動密度 / 銅酸化物高温超伝導体 / 電子相図 / ドープ量依存性 / 輸送特性
Outline of Research at the Start

銅酸化物高温超伝導体の実用に向けて、臨界電流密度(ゼロ抵抗で流せる最大電流密度、Jc)の向上は重要課題である。一般にJcは超伝導体中の量子化磁束を捕捉する力(磁束ピン止め力)で決定付けられる。多数の秩序相が共存・競合する銅酸化物高温超伝導体では、従来の超伝導体には見られない、特異な磁束ピン止め機構が期待される。本研究では、銅酸化物高温超伝導体の電子相図が臨界電流特性にどのような影響を及ぼしているのかを明らかにし、Jc向上に向けた物質設計指針を提案する。

Outline of Final Research Achievements

Using single crystals of high-Tc cuprates, we clarified how the critical current density (the maximum current density up to that zero electrical resistance can maintain) changes with carrier doping levels and chemical composition. We discovered an unusual behavior of the critical current density, previously unknown, which shows a peak in the underdoped region. We investigated the doping dependence of the superconducting parameters related to critical current density, namely the upper critical field (the maximum magnetic field up to that superconducting state can maintain) and the superfluid density (the density of Cooper pairs responsible for superconductivity). These parameters increased monotonically with doping levels and showed no correlation with the behavior of critical current density in the underdoped region. This result suggests a novel flux pinning mechanism that had previously been overlooked.

Academic Significance and Societal Importance of the Research Achievements

液体窒素温度以上でもゼロ抵抗状態を維持できる銅酸化物高温超伝導体の超伝導機構解明および応用展開は長年の課題である。臨界電流密度は応用上極めて重要なパラメータであり、その顕著な増大をもたらす未解明の決定因子を発見したことの意義は大きい。今後、臨界電流密度の増大機構の解明することで、基礎的な知見の蓄積と超伝導応用の加速につながると期待される。

Report

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

    (20 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (3 results) Journal Article (2 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (15 results) (of which Int'l Joint Research: 7 results)

  • [Int'l Joint Research] ウィーン工科大学(オーストリア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ウィーン工科大学(オーストリア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ウィーン工科大学(オーストリア)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Single-Crystal Growth and Characterization of Cuprate Superconductor (Hg,Re)Ba2Ca2Cu3O8+delta2024

    • Author(s)
      Yutaro Mino, Shigeyuki Ishida, Junichiro Kato, Shungo Nakagawa, Takanari Kashiwagi, Takahiro Nozue, Nao Takeshita, Kunihiro Kihou, Chul-Ho Lee, Taichiro Nishio, Hiroshi Eisaki
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 93 Issue: 4 Pages: 044707-044707

    • DOI

      10.7566/jpsj.93.044707

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Single-Crystal Growth of a Cuprate Superconductor with the Highest Critical Temperature2024

    • Author(s)
      Mino Yutaro、Ishida Shigeyuki、Kato Junichiro、Nakagawa Shungo、Kashiwagi Takanari、Nozue Takahiro、Takeshita Nao、Kihou Kunihiro、Lee Chul-Ho、Nishio Taichiro、Eisaki Hiroshi
    • Journal Title

      JPS Hot Topics

      Volume: 4 Pages: 015-015

    • DOI

      10.7566/jpsht.4.015

    • Related Report
      2023 Annual Research Report
    • Open Access
  • [Presentation] Single crystal growth of high-Tc superconductor (Hg,Re)Ba2Ca2Cu3O8+δ2023

    • Author(s)
      Mino Yutaro, Ishida Shigeyuki, Kato Junichiro, Nakagawa Shungo, Kashiwagi Takanari, Nozue Takahiro, Takeshita Nao, Kihou Kunihiro, Lee Chul-Ho, Nishio Taichiro, Eisaki Hiroshi
    • Organizer
      International Conference on Quantum Liquid Crystals 2023 (QLC2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Doping dependence of Hirr(T) and 1/λ2(T) in Bi-22122023

    • Author(s)
      J. Kato, Y. Mino, T. Nishio, T. Okada, S. Awaji, S. Nakagawa, T. Kashiwagi, S. Ishida, H. Eisaki
    • Organizer
      The 36th International Symposium on Superconductivity (ISS2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Single crystal growth of high-Tc superconductor (Hg,Re)Ba2Ca2Cu3O8+δ2023

    • Author(s)
      Y. Mino, S. Ishida, J. Kato, S. Nakagawa, T. Kashiwagi, T. Nozue, N. Takeshita, K. Kihou, C. H. Lee, PavanKumarNaik Sugali, T. Nishio, H. Eisaki
    • Organizer
      The 36th International Symposium on Superconductivity (ISS2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hg1223銅酸化物高温超伝導体の単結晶育成と物性評価Ⅱ2023

    • Author(s)
      三野裕太郎、石田茂之、加藤準一郎、中川駿吾、柏木隆成、野末隆広、竹下直、木方邦宏、李哲虎、スガリ・パバン・クマールナイク、西尾太一郎、永崎洋
    • Organizer
      日本物理学会 第78回年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 角度分解光電子分光による銅酸化物高温超伝導体Bi2Sr2CaCu2O8+δの電子相図の再検討2023

    • Author(s)
      坪田悠希、宮井雄大、Shiv Kumar、田中清尚、石田茂之、永崎洋、中川駿吾、柏木隆成、有田将司、島田賢也、出田真一郎
    • Organizer
      日本物理学会 第78回年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 銅酸化物高温超伝導体(Hg,Re)1223の単結晶育成と物性評価2023

    • Author(s)
      三野裕太郎、石田茂之、加藤準一郎、中川駿吾、柏木隆成、野末隆広、竹下直、木方邦宏、李哲虎、スガリ・パバン・クマールナイク、西尾太一郎、永崎洋
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Doping dependence of the critical current properties in Bi2.2Sr1.8CaCu2O8+δ single crystals2023

    • Author(s)
      J. Kato, Y. Mino, PKN Sugali, T. Nishio, S. Nakagawa, T. Kashiwagi, H. Eisaki, S. Ishida
    • Organizer
      APS March Meeting 2023
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Doping Dependence of the Critical Current Density in Bi2.2Sr1.8CaCu2O8+δ2022

    • Author(s)
      J. Kato, Y. Mino, PKN Sugali, S. Nakagawa, T. Kashiwagi, S. Ishida, H. Eisaki, T. Nishio
    • Organizer
      29th International Conference on Low Temperature Physics (LT29)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Bi2.2Sr1.8CaCu2O8+δ単結晶における臨界電流密度のドープ量依存性2022

    • Author(s)
      加藤準一朗、三野裕太郎、PavanKumarNaik Sugali、中川駿吾、柏木隆成、石田茂之、永崎洋、西尾太一郎
    • Organizer
      2022年度春季 第103回 低温工学・超電導学会研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 角度分解光電子分光によるBi2Sr2CaCu2O8+δの電子相図の再検討2022

    • Author(s)
      坪田悠希、宮井雄大、Shiv Kumar、田中 清尚、石田茂之、永崎洋、中川駿吾、柏木隆成、有田将司、島田賢也、出田真一郎
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Doping dependence of critical current density of Bi2212 single crystals2021

    • Author(s)
      S. Ishida, J. Kato, S. Nakagawa, M. Nakayama, D. Bader, H. Eisaki, T. Nishio, M. Tsujimoto, T. Kashiwagi, M. Eisterer
    • Organizer
      The 15th European Conference on Applied Superconductivity (EUCAS2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Implications of the doping dependence of critical current density for the electronic phase diagram in Bi2.2Sr1.8CaCu2O8+δ single crystals2021

    • Author(s)
      J. Kato, Y. Mino, P. K. N. Sugali, T. Nishio, S. Nakagawa, T. Kashiwagi, H. Eisaki, S. Ishida
    • Organizer
      34th International Symposium on Superconductivity (ISS2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Bi2Sr2CaCu2O8+δ単結晶における臨界電流密度のドープ量依存性2021

    • Author(s)
      加藤準一朗、三野裕太郎、西尾太一郎、中川駿吾、柏木隆成、永崎洋、石田茂之
    • Organizer
      低温工学・超電導学会 東北・北海道支部 第23回超電導・低温若手セミナー
    • Related Report
      2021 Annual Research Report
  • [Presentation] Bi2.2Sr1.8Ca2CuO8+δ単結晶における臨界電流密度のドープ量依存性と電子相図の関係2021

    • Author(s)
      加藤準一朗、三野裕太郎、Sugali Pavan Kumar Naik、西尾太一郎、中川駿吾、柏木隆成、永崎洋、石田茂之
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] アルカリエッチングを用いた銅酸化物超伝導体Bi2212のデバイス加工2021

    • Author(s)
      中川駿吾、柏木隆成、中山繭、金正赫、山口啄弥、桑野玄気、辻本学、南英俊、門脇和男、石田茂之、永崎洋
    • Organizer
      応用物理学会2022年第69回春季学術講演会
    • Related Report
      2021 Annual Research Report

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

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