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Characteristic control of iron-chalcogenide tapes via uniaxial strain and research for high-field magnet applications

Research Project

Project/Area Number 18K13783
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 21050:Electric and electronic materials-related
Research InstitutionTohoku University

Principal Investigator

Okada Tatsunori  東北大学, 金属材料研究所, 助教 (50793775)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords鉄カルコゲナイド超伝導体 / 一軸ひずみ / 臨界電流 / 輸送特性 / 磁束ピンニング / 鉄カルコゲナイド超伝導 / 鉄系超伝導体 / 超伝導線材 / 高周波応答 / 鉄カルコゲナイド
Outline of Final Research Achievements

To clarify the uniaxial strain effect on iron-chalcogenide superconducting tapes and the potential for high-field magnet applications, we investigated critical current characteristics of FeSe0.5Te0.5 thin films fabricated on buffered metal substrates. As a results, we elucidated that the critical temperature changes linearly by applying uniaxial strains between -0.3% and +0.3%. We also found that the critical current characteristics can be improved by changing the top-most buffer layer from CeO2 to CaF2. In addition, we succeeded in constructing a model that can explain the uniaxial strain dependence of critical current of copper-oxide superconducting tapes, which we investigated for comparison.

Academic Significance and Societal Importance of the Research Achievements

鉄カルコゲナイド超伝導体FeSe1-xTexは、今後の超伝導線材応用が期待される物質の一つである。
本研究によって、外部からの機械的な一軸ひずみ印加や最表面バッファ層の変更により、FeSe0.5Te0.5の超伝導特性・通電特性を改善できることが明らかとなった。この振る舞いを上手く利用することで効率的な通電が可能となるため、産業応用に向けた研究の足掛かりとなる。
また、未解明であった銅酸化物超伝導線材の一軸ひずみ依存性の定量的記述に成功しており、これを用いることで超伝導マグネット設計の精緻化が可能になる。

Report

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

    (28 results)

All 2021 2020 2019 2018

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (23 results) (of which Int'l Joint Research: 9 results,  Invited: 4 results)

  • [Journal Article] Mechanical and critical current characteristics of high-strength (Bi,Pb)2Sr2Ca2Cu3O10+δ tapes under uniaxial tensile strain2021

    • Author(s)
      Okada Tatsunori、Sakai Kohei、Awaji Satoshi
    • Journal Title

      Superconductor Science and Technology

      Volume: 34 Issue: 2 Pages: 025017-025017

    • DOI

      10.1088/1361-6668/abced2

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In-plane Domain Control of REBCO Coated Conductors by Annealing Under Bending Strain2021

    • Author(s)
      Okada Tatsunori、Misaizu Hidenori、Awaji Satoshi
    • Journal Title

      IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY

      Volume: 31 Pages: 1-6

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A possible explanation for double-peak structure in strain dependence of critical current density in REBa2Cu3O7-δ coated conductors2020

    • Author(s)
      Okada Tatsunori、Misaizu Hidenori、Awaji Satoshi
    • Journal Title

      Superconductor Science and Technology

      Volume: 33 Issue: 9 Pages: 094014-094014

    • DOI

      10.1088/1361-6668/aba352

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Superconducting-Gap Anisotropy of Iron Pnictides Investigated via Combinatorial Microwave Measurements2020

    • Author(s)
      Tatsunori Okada, Yoshinori Imai, Kentaro Kitagawa, Kazuyuki Matsubayashi, Masamichi Nakajima, Akira Iyo, Yoshiya Uwatoko, Hiroshi Eisaki, and Atsutaka Maeda
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 7064-7064

    • DOI

      10.1038/s41598-020-63304-0

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Longitudinal Magnetic Field Effects on (Y,Gd)Ba2Cu3O7?δ Coated Conductor With BaHfO3 Nanoparticles Fabricated by UTOC-MOD Method2019

    • Author(s)
      Okada Tatsunori、Misaizu Hidenori、Awaji Satoshi、Nakaoka Koichi、Machi Takato、Izumi Teruo、Miura Masashi
    • Journal Title

      IEEE Transactions on Applied Superconductivity

      Volume: 29 Issue: 5 Pages: 1-5

    • DOI

      10.1109/tasc.2019.2899745

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] 定常強磁場を用いた 高温超伝導線材の磁束ピンニング特性測定2021

    • Author(s)
      岡田達典
    • Organizer
      低温工学・超電導学会 第三回若手の会セミナー
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 常伝導コアモデルにおけるナノ粒子による要素的ピンニング力の評価 ~特異な角度依存性に着目して~2021

    • Author(s)
      岡田達典、淡路智
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] FeSe1-xTexコート線材における臨界温度の一軸ひずみ依存性2021

    • Author(s)
      滝澤和輝、岡田逹典、淡路智、色摩直樹、鍋島冬樹、前田京剛、中岡晃一、和泉輝郎
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Critical current characterization of superconducting tapes/wires at HFLSM, IMR, Tohoku Univ.2020

    • Author(s)
      Tatsunori Okada
    • Organizer
      Asia-Pacific Conference on Research in High Magnetic Fields (ARHMF2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Consideration on Double-Peak Structure Appeared in Uniaxial Strain Dependence of Critical Current Density of REBCO Coated Conductors2020

    • Author(s)
      Tatsunori Okada、Hidenori Misaizu、Satoshi Awaji
    • Organizer
      第100回 低温工学・超電導学会 秋季研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 中間層最表面にCaF2を用いた FeSe1-xTex コート線材の臨界電流特性2020

    • Author(s)
      滝澤和輝、岡田逹典、淡路智、色摩直樹、鍋島冬樹、前田京剛、一瀬中、中岡晃一、和泉輝郎
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 蒸気拡散法で合成した鉄カルコゲナイド超伝導体膜の磁場中通電特性2020

    • Author(s)
      角浩貴、滝澤和輝、岡田達典、淡路智
    • Organizer
      応用物理学会東北支部 第75回学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] "Stress/Strain Dependence of Critical Current in High-Strength Bi2Sr2Ca2Cu3O10+δ Tapes"2020

    • Author(s)
      Tatsunori Okada、Kohei Sakai、Satoshi Awaji
    • Organizer
      Applied Superconductor Conference 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] "In-plane Domain Control of REBCO Coated Conductors by High-Temperature- Bending-Anneal Method"2020

    • Author(s)
      Tatsunori Okada、Hidenori Misaizu、Satoshi Awaji
    • Organizer
      Applied Superconductor Conference 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] REBCOコート線材における臨界電流密度の一軸ひずみ依存性に現れるダブルピーク構造の考察2020

    • Author(s)
      岡田達典, 美齊津英典, 淡路智
    • Organizer
      応用物理学会春季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] A possible explanation for double-peaks structure in strain dependence of Jc of REBCO coated conductors2020

    • Author(s)
      Tatsunori OKADA, Hidenori MISAIZU, Satoshi AWAJI
    • Organizer
      10th ACASC/2nd Asian-ICMC/CSSJ Joint Conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Jc(T,B,θ) characterization of REBCO coated conductors with 25T-CSM2019

    • Author(s)
      Tatsunori OKADA, Shinji FUJITA, Satoshi AWAJI
    • Organizer
      6th France-Japan High Field and HTS Magnet Technology Research Workshop
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 国際会議報告 EUCAS: HTS材料2019

    • Author(s)
      岡田達典
    • Organizer
      低温工学・超電導学会第四回冷凍部会例会
    • Related Report
      2019 Research-status Report
  • [Presentation] Pinning Properties of REBCO Coated Conductors with Domains Controlled by High-Temperature-Bending Anneal2019

    • Author(s)
      Tatsunori OKADA, Hidenori MISAIZU, Satoshi AWAJI
    • Organizer
      EUCAS2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Flux Pinning by BHO Nanoparticles under Various Strength and Orientations of Magnetic Fields in REBCO Coated Conductors Fabricated by UTOC-TFA-MOD Method2019

    • Author(s)
      Tatsunori OKADA, Satoshi AWAJI, Koichi NAKAOKA, Takato MACHI, Teruo IZUMI, Masashi MIURA
    • Organizer
      CEC-ICMC2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 高温超伝導線材における面内一軸ひずみ効果 -金研強磁場センターでの取り組み-2019

    • Author(s)
      岡田達典
    • Organizer
      低温工学・超電導学会第一回材料研究会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 高温曲げアニールによりドメイン制御したREBa2Cu3O7-δコート線材の臨界電流特性2019

    • Author(s)
      岡田達典、美齊津英典、淡路智
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 強磁場応用に向けた鉄カルコゲナイド超伝導体FeSe1-xTexにおける一軸ひずみ依存性の解明2018

    • Author(s)
      阿部峰也、岡田達典、淡路智、石川智也、色摩直樹、鍋島冬樹、前田京剛、中岡晃一、和泉輝郎
    • Organizer
      応用物理学会東北・北海道支部会学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] BHO ナノ粒子を添加した 極薄一回塗布膜厚 MOD-REBCO コー ト線材における縦磁界効果2018

    • Author(s)
      岡田 達典,美齊津 英典,淡路 智,中岡 晃一,町 敬人,和泉 輝 郎,三浦 正志
    • Organizer
      2018年度春季(第96回)低温工学・超電導学会
    • Related Report
      2018 Research-status Report
  • [Presentation] Consideration on angular dependent pinning properties in REBa2Cu3Oy coated conductor containing BaHfO3 nanopar- ticles fabricated by UTOC-TFA-MOD process2018

    • Author(s)
      Tatsunori OKADA, Satoshi AWAJI, Koichi NAKAOKA, Takato MACHI, Teruo IZUMI
    • Organizer
      Coated Conductor for Applications 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Longitudinal Magnetic Field Effects on REBCO Coated Conductors with BHO Nanoparticles Fabricated by UTOC-MOD Method2018

    • Author(s)
      Tatsunori OKADA, Hidenori MISAIZU, Satoshi AWAJI, Koichi NAKAOKA, Takato MACHI, Teruo IZUMI, Masashi MIURA
    • Organizer
      Applied Superconductivity Conference 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 極薄一回塗布膜厚 MOD-REBCO コート線材における縦磁界効果2018

    • Author(s)
      岡田達典、美齊津英典、淡路智、中岡晃一、町敬人、和泉輝郎、三浦正志
    • Organizer
      第26回渦糸物理国内会議
    • Related Report
      2018 Research-status Report
  • [Presentation] BHO ナノ粒子を添加した極薄一回塗布膜厚 TFA-MOD 法 REBCO コート線材の強磁場臨界電流特性2018

    • Author(s)
      岡田達典
    • Organizer
      2018 年度強磁場研究会
    • Related Report
      2018 Research-status Report

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

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