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High quality thin films of iron-based superconductors and the fabrication technology of superconducting junctions

Research Project

Project/Area Number 24246007
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied materials science/Crystal engineering
Research InstitutionNagoya University

Principal Investigator

HIROSHI Ikuta  名古屋大学, 工学(系)研究科(研究院), 教授 (30231129)

Co-Investigator(Kenkyū-buntansha) TANAKA Yukio  名古屋大学, 大学院工学研究科, 教授 (40212039)
TABUCHI Masao  名古屋大学, シンクロトロン光研究センター, 特任教授 (90222124)
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥46,150,000 (Direct Cost: ¥35,500,000、Indirect Cost: ¥10,650,000)
Fiscal Year 2014: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
Fiscal Year 2013: ¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2012: ¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Keywords超伝導材料 / 分子線エピタキシー法 / 鉄系超伝導体 / 低温物性 / エピタキシャル成長
Outline of Final Research Achievements

The recently discovered iron-based superconductors are attracting the attention of many researchers because they are forming a new family of high temperature superconductors. In this project, we have studied thin film growth of these materials and the fabrication of several superconducting junctions. We have improved significantly the film quality of NdFeAs(O,F), which has the highest transition temperature (Tc) among the iron-based superconductors discovered so far. For BaFe2(As,P)2, which has a somewhat lower Tc but very high crystalline quality, we succeeded in the growth of thin films for the whole composition range. Thin films of CaFe2As2-based materials were also grown for the first time. Using these thin films, we have fabricated grain boundary junctions, and studied the junction properties. A method to form a smooth CaF2 barrier for the fabrication of planar type junctions was developed, and we also studied the growth of stacked hetero-junctions based on BaFe2(As,P)2.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (46 results)

All 2015 2014 2013 Other

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Acknowledgement Compliant: 2 results) Presentation (39 results) (of which Invited: 8 results)

  • [Journal Article] Unusually high critical current of clean P-doped BaFe2As2 single crystalline thin film2015

    • Author(s)
      F. Kurth, C. Tarantini, V. Grinenko, J. Haenisch, J. Jaroszynski, E. Reich, Y. Mori, A. Sakagami, T. Kawaguchi, J. Engelmann, L. Schultz, B. Holzapfel, H. Ikuta, R. Huehne and K. Iida
    • Journal Title

      Appl. Phys. Lett.

      Volume: 106 Issue: 7

    • DOI

      10.1063/1.4908257

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Direct growth of superconducting NdFeAs(O,F) thin films by MBE2015

    • Author(s)
      M. Chihara, N. Sumiya, K. Arai, A. Ichinose, I. Tsukada, T. Hatano, K. Iida and H. Ikuta
    • Journal Title

      Physica C

      Volume: in press Pages: 69-72

    • DOI

      10.1016/j.physc.2015.03.022

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Highly textured oxypnictide superconducting thin films on metal substrates2014

    • Author(s)
      K. Iida, F. Kurth, M. Chihara, N. Sumiya, V. Grinenko, A. Ichinose, I. Tsukada, J. Haenisch, V. Matias, T. Hatano, B. Holzapfel and H. Ikuta
    • Journal Title

      Appl. Phys. Lett.

      Volume: 105 Issue: 17

    • DOI

      10.1063/1.4900931

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Growth of BaFe_2(As, P)_2 thin films by molecular beam epitaxy and strain effect on superconducting properties2014

    • Author(s)
      T. Kawaguchi, A. Sakagami, Y. Mori, M. Tabuchi, T. Ujihara, Y. Takeda, H. Ikuta
    • Journal Title

      Superconductor Science and Technology

      Volume: 27 Issue: 6 Pages: 65005-65005

    • DOI

      10.1088/0953-2048/27/6/065005

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bicrystalline Grain Boundary Junctions of Co-doped and P-doped Ba-122 Thin Films2014

    • Author(s)
      S Schmidt, S Doring, F Schmidl, F Kurth, K Iida, B Holzapfel, T Kawaguchi, Y Mori, H Ikuta and P Seidel
    • Journal Title

      J. Phys. Conf. Ser.

      Volume: 507 Issue: 1 Pages: 012046-012046

    • DOI

      10.1088/1742-6596/507/1/012046

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Growth of a smooth CaF2 layer on NdFeAsO thin film2014

    • Author(s)
      N. Sumiya, T. Kawaguchi, M. Chihara, M. Tabuchi, T. Ujihara, A. Ichinose, I. Tsukada, and H. Ikuta
    • Journal Title

      J. Phys. Conf. Ser.

      Volume: 507 Issue: 1 Pages: 012047-012047

    • DOI

      10.1088/1742-6596/507/1/012047

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Critical current density and grain boundary property of BaFe_2(As, P)_2 thin films2013

    • Author(s)
      A. Sakagami, T. Kawaguchi, M. Tabuchi, T. Ujihara, Y. Takeda. H. Ikuta
    • Journal Title

      Physica C : Superconductivity

      Volume: 494 Pages: 181-184

    • DOI

      10.1016/j.physc.2013.04.047

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] Strain effect on the phase diagram of Ba-1222015

    • Author(s)
      K. Iida, V. Grinenko, F. Kurth, D. Efremov, S. Drechsler, M. Langer, J. Engelmann, A. Ichinose, I. Tsukada, E. Ahrens, S. Aswartham, S. Wurmehl, I. Moench, M. Erbe, J. Haenisch, B. Holzapfel, H. Ikuta, and R. Huehne
    • Organizer
      79th DPG Annual Meeting and DPG Spring Meeting
    • Place of Presentation
      Berlin, Germany
    • Year and Date
      2015-03-15 – 2015-03-20
    • Related Report
      2014 Annual Research Report
  • [Presentation] Unusually high critical current of P-doped BaFe2Fe2 single crystalline thin film2015

    • Author(s)
      F. Kurth, C. Tarantini, V. Grinenko, J. Haenisch, J. Jaroszynski, E. Reich, Y. Mori, A. Sakagami, T. Kawaguchi, J. Engelmann, L. Schultz, B. Holzapfel, H. Ikuta, R. Huehne, and K. Iida
    • Organizer
      79th DPG Annual Meeting and DPG Spring Meeting
    • Place of Presentation
      Berlin, Germany
    • Year and Date
      2015-03-15 – 2015-03-20
    • Related Report
      2014 Annual Research Report
  • [Presentation] Thin film growth of BaFe2(As,P)2 and NdFeAs(O,F) on single-crystal and IBAD-MgO buffered substrates2014

    • Author(s)
      H. Ikuta
    • Organizer
      International Workshop on Coated Conductor for Applications 2014
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2014-11-30 – 2014-12-03
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Thin film Growth of CaFe2As2-based superconductors by MBE2014

    • Author(s)
      T. Hatano, R. Fujimoto, I. Nakamura, Y. Mori and H. Ikuta
    • Organizer
      27th International Symposium on Superconductivity (ISS2014)
    • Place of Presentation
      Tokyo
    • Year and Date
      2014-11-25 – 2014-11-27
    • Related Report
      2014 Annual Research Report
  • [Presentation] Microstructure Observation of CaFe2As2 Family Thin Films by Transmission Electron Microscopy2014

    • Author(s)
      T. Kawaguchi, S. Harada, R. Fujimoto, Y. Mori, I. Nakamura, T. Hatano, T. Ujihara, H. Ikuta
    • Organizer
      27th International Symposium on Superconductivity (ISS2014)
    • Place of Presentation
      Tokyo
    • Year and Date
      2014-11-25 – 2014-11-27
    • Related Report
      2014 Annual Research Report
  • [Presentation] MBE growth of superconducting NdFeAs(O,F) thin film without a fluoride top layer2014

    • Author(s)
      M. Chihara, N. Sumiya, K. Arai, T. Hatano, H. Ikuta
    • Organizer
      27th International Symposium on Superconductivity (ISS2014)
    • Place of Presentation
      Tokyo
    • Year and Date
      2014-11-25 – 2014-11-27
    • Related Report
      2014 Annual Research Report
  • [Presentation] MBE法によるNdFeAs(O,F)超伝導薄膜の直接成長2014

    • Author(s)
      千原真志、角谷直紀、荒井健太、畑野敬史、生田博志
    • Organizer
      第5回超電導材料若手研究交流会
    • Place of Presentation
      東京大学
    • Year and Date
      2014-11-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] MBE法によるNdFeAs(O,F)超伝導薄膜の直接成長2014

    • Author(s)
      千原真志、角谷直紀、荒井健太、畑野敬史、生田博志
    • Organizer
      応用物理学会SC東海地区学術講演会2014
    • Place of Presentation
      名古屋大学
    • Year and Date
      2014-11-08
    • Related Report
      2014 Annual Research Report
  • [Presentation] CaFe2As2系薄膜の分子線エピタキシー成長2014

    • Author(s)
      藤本亮祐、中村伊吹、川口昂彦、原田俊太、宇治原徹、生田博志
    • Organizer
      応用物理学会SC東海地区学術講演会2014
    • Place of Presentation
      名古屋大学
    • Year and Date
      2014-11-08
    • Related Report
      2014 Annual Research Report
  • [Presentation] 鉄系超伝導体NdFeAs(O,F)薄膜の臨界電流密度2014

    • Author(s)
      荒井健太、角谷直紀、千原真志、F. Kurth、S. Schmidt、C. Tarantini、川口昂彦、畑野敬史、J. Jaroszynski、K. Iida、生田博志
    • Organizer
      応用物理学会SC東海地区学術講演会2014
    • Place of Presentation
      名古屋大学
    • Year and Date
      2014-11-08
    • Related Report
      2014 Annual Research Report
  • [Presentation] CaFe2As2系超伝導薄膜の透過電子顕微鏡観察2014

    • Author(s)
      川口昂彦、原田俊太、藤本亮祐、森康博、中村伊吹、畑野敬史、宇治原徹、生田博志
    • Organizer
      第75回応用物理学会秋季学術講演会
    • Place of Presentation
      北海道大学
    • Year and Date
      2014-09-17 – 2014-09-20
    • Related Report
      2014 Annual Research Report
  • [Presentation] 成長阻害要因の解明とその改善によるNdFeAs(O,F)超伝導薄膜の作製2014

    • Author(s)
      角谷直紀、千原真志、荒井健太、畑野敬史、生田博志
    • Organizer
      第75回応用物理学会秋季学術講演会
    • Place of Presentation
      北海道大学
    • Year and Date
      2014-09-17 – 2014-09-20
    • Related Report
      2014 Annual Research Report
  • [Presentation] MBE成長したNdFeAs(O,F)/MgO薄膜の臨界電流密度2014

    • Author(s)
      千原真志、角谷直紀、荒井健太、F. Kurth、S. Schmidt、C. Tarantini、川口昂彦、畑野敬史、J. Jaroszynski、K. Iida、生田博志
    • Organizer
      第75回応用物理学会秋季学術講演会
    • Place of Presentation
      北海道大学
    • Year and Date
      2014-09-17 – 2014-09-20
    • Related Report
      2014 Annual Research Report
  • [Presentation] CaFe2As2系薄膜の分子線エピタキシー成長2014

    • Author(s)
      藤本亮祐、中村伊吹、森康博、畑野敬史、川口昂彦、原田俊太、宇治原徹、生田博志
    • Organizer
      第75回応用物理学会秋季学術講演会
    • Place of Presentation
      北海道大学
    • Year and Date
      2014-09-17 – 2014-09-20
    • Related Report
      2014 Annual Research Report
  • [Presentation] High-Field Transport Properties Of P-Doped Ba-122 Thin Films2014

    • Author(s)
      F. Kurth, E. Reich, J. Engelmann, J. Haenisch, L. Schultz, B. Holzapfel, K. Iida, C. Tarantini, J. Jaroszynski, A. Sakagami, Y. Mori, T. Kawaguchi, H. Ikuta
    • Organizer
      Applied Superconductivity Conference 2014
    • Place of Presentation
      Charlotte, USA
    • Year and Date
      2014-08-10 – 2014-08-15
    • Related Report
      2014 Annual Research Report
  • [Presentation] High-field transport properties of P-doped BaFe2As22014

    • Author(s)
      K. Iida, F. Kurth, C. Tarantini, T. Kawaguchi, J. Haenisch, V. Grinenko, E. Reich, A. Sakagami, J. Jaroszynski, Y. Mori, F. Kametani, L. Schultz, H. Ikuta, B. Holzapfel
    • Organizer
      International Conference "Superconductivity for Energy 2014"
    • Place of Presentation
      Paestum, Italy
    • Year and Date
      2014-05-15 – 2014-05-19
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] High-field transport properties of isovalently P-doped BaFe2As2 epitaxial thin films2014

    • Author(s)
      F. Kurth, C. Tarantini , Y. Mori , E. Reich, T. Kawaguchi, J. Jaroszynski, J. Haenisch, A. Sakagami, F. Kametani, L. Schultz, B. Holzapfel, H. Ikuta, K. Iida
    • Organizer
      4th International Conference on Superconductivity and Magnetism
    • Place of Presentation
      Antalya, Turkey
    • Year and Date
      2014-04-27 – 2014-05-02
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] High-field transport properties of isovalently P-doped BaFe2As2 epitaxial thin films2014

    • Author(s)
      F. Kurth, C. Tarantini, T. Kawaguchi, E. Reich, A. Sakagami, J. Jaroszynski, J. Haenisch, Y. Mori, F. Kametani, L. Schultz, B. Holzapfel, H. Ikuta, K. Iida
    • Organizer
      Material Research Society Spring Meeting 2014
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2014-04-21 – 2014-04-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] Thin film growth of NdFeAs(O,F) and BaFe2(As,P)2

    • Author(s)
      H. Ikuta
    • Organizer
      14th International Workshop on Vortex Matter in Superconductors
    • Place of Presentation
      Nanjing, China
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Growth of a smooth CaF2 layer on NdFeAsO thin film

    • Author(s)
      N. Sumiya, M. Chihara, T. Kawaguchi, M. Tabuchi, T. Ujihara, A. Ichinose, I. Tsukada, and H. Ikuta
    • Organizer
      11th European Conference on Applied Superconductivity (EUCAS2013)
    • Place of Presentation
      Genova, Italy
    • Related Report
      2013 Annual Research Report
  • [Presentation] Growth of BaFe2(As,P)2 Thin Films by Molecular Beam Epitaxy

    • Author(s)
      H. Ikuta, Y. Mori, A. Sakagami, T. Kawaguchi, M. Tabuchi, and T. Ujihara
    • Organizer
      11th European Conference on Applied Superconductivity (EUCAS2013)
    • Place of Presentation
      Genova, Italy
    • Related Report
      2013 Annual Research Report
  • [Presentation] Fe過剰BaFe2(As,P)2薄膜の臨界電流密度増大の起源

    • Author(s)
      森康博, 藤本亮祐, 坂上彰啓, 原田俊太, 宇治原徹, 田渕雅夫, 生田博志
    • Organizer
      第74回応用物理学会秋季学術講演会
    • Place of Presentation
      同志社大学京田辺キャンパス
    • Related Report
      2013 Annual Research Report
  • [Presentation] IBAD-MgO/金属テープ上へのBaFe2(As,P)2薄膜のMBE成長と評価

    • Author(s)
      森康博, F. Kurth, 藤本亮祐, 川口昂彦, J. Hänisch, B. Holzapfel, K. Iida, C. Tarantini, 田渕雅夫, 宇治原徹, 生田博志
    • Organizer
      第74回応用物理学会秋季学術講演会
    • Place of Presentation
      同志社大学京田辺キャンパス
    • Related Report
      2013 Annual Research Report
  • [Presentation] 鉄系超伝導体NdFeAsO薄膜上への平坦なCaF2層成長

    • Author(s)
      角谷直紀, 千原真志,川口昂彦,田渕雅夫,宇治原徹,一瀬中,塚田一郎,生田博志
    • Organizer
      応用物理学会SC東海地区学術講演会2013
    • Place of Presentation
      名古屋大学東山キャンパス
    • Related Report
      2013 Annual Research Report
  • [Presentation] Growth of a smooth insulator layer on NdFeAsO and junction fabrication

    • Author(s)
      N. Sumiya, T. Kawaguchi, M. Chihara, M. Tabuchi, T. Ujihara, A. Ichinose, I. Tsukada, and H. Ikuta
    • Organizer
      26th International Symposium on Superconductivity (ISS2013)
    • Place of Presentation
      Tokyo
    • Related Report
      2013 Annual Research Report
  • [Presentation] Strain effect on the superconducting properties of BaFe2(As,P)2 thin films

    • Author(s)
      Y. Mori, R. Fujimoto, A. Sakagami, T. Kawaguchi, M. Tabuchi, T. Ujihara, H. Ikuta
    • Organizer
      26th International Symposium on Superconductivity (ISS2013)
    • Place of Presentation
      Tokyo
    • Related Report
      2013 Annual Research Report
  • [Presentation] Thin Film Growth of Iron Based Superconductors and Their Characterization

    • Author(s)
      H. Ikuta
    • Organizer
      8th Solid State Surfaces and Interfaces 2013 (SSSI VIII)
    • Place of Presentation
      Smolenice, Slovak
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Growth of high quality superconductors and prospects for applications - melt-grown copper-based superconductors and thin films of iron-based superconductors

    • Author(s)
      H. Ikuta
    • Organizer
      NSFC-CAS-JSPS International Workshop on Frontier of Science and Technology 2013
    • Place of Presentation
      Guangzhou, China
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] CaFe2(As,P)2超伝導薄膜の分子線エピタキシー成長

    • Author(s)
      藤本亮祐,森康博,生田博志
    • Organizer
      第61回応用物理学会春季学術講演会
    • Place of Presentation
      青山学院大学相模原キャンバス
    • Related Report
      2013 Annual Research Report
  • [Presentation] MBE Growth of Iron-based Superconductor Thin Films and Junction Fabrication

    • Author(s)
      H. Ikuta, T. Kawaguchi, H. Uemura, T. Ohno, A. Sakagami, M. Tabuchi, T. Ujihara, Y. Takeda
    • Organizer
      11th International Symposium on High Temperature Superconductors in High Frequency Fields (HTSHFF2012)
    • Place of Presentation
      松島
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] BaFe2(As,P)2超伝導薄膜のMBE成長と粒界特性の評価

    • Author(s)
      森 康博,坂上彰啓,川口昂彦,田渕雅夫,宇治原徹,竹田美和,生田博志
    • Organizer
      2012年秋季第73回応用物理学会学術講演会
    • Place of Presentation
      愛媛大学
    • Related Report
      2012 Annual Research Report
  • [Presentation] NdFeAs(O,F)薄膜を用いた超伝導接合の作製

    • Author(s)
      川口昂彦,角谷直紀,田渕雅夫,宇治原徹,竹田美和,生田博志
    • Organizer
      2012年秋季第73回応用物理学会学術講演会
    • Place of Presentation
      愛媛大学
    • Related Report
      2012 Annual Research Report
  • [Presentation] 鉄系超伝導体薄膜の粒界接合特性

    • Author(s)
      川口昂彦,坂上彰啓,森康博,角谷直紀,田渕雅夫,宇治原徹,竹田美和,生田博志
    • Organizer
      日本物理学会2012年秋季大会
    • Place of Presentation
      横浜国立大学
    • Related Report
      2012 Annual Research Report
  • [Presentation] Recent Progress in Thin-Film Growth of Fe-Based Superconductors in Japan

    • Author(s)
      H. Ikuta
    • Organizer
      25th International Symposium on Superconductivity (ISS2012)
    • Place of Presentation
      Tokyo
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Jc and Grain Boundary Properties of BaFe2(As,P)2 Thin Films

    • Author(s)
      A. Sakagami, T. Kawaguchi, Y. Mori, M. Tabuchi, T. Ujihara, and H. Ikuta
    • Organizer
      25th International Symposium on Superconductivity (ISS2012)
    • Place of Presentation
      Tokyo
    • Related Report
      2012 Annual Research Report
  • [Presentation] A Scaling Approach to Determine the Anisotropy of Oxypnictides

    • Author(s)
      S. Haindl, M. Kidszun, A. Kauffmann, N. Kozlova, T. Thersleff, T. Kawaguchi, H. Ikuta, E. Kampert, J. Wosnitza
    • Organizer
      25th International Symposium on Superconductivity (ISS2012)
    • Place of Presentation
      Tokyo
    • Related Report
      2012 Annual Research Report
  • [Presentation] BaFe2(As,P)2の超伝導特性の歪効果

    • Author(s)
      川口昂彦,坂上彰啓,森康博,田渕雅夫,宇治原徹,生田博志
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学
    • Related Report
      2012 Annual Research Report
  • [Presentation] NdFeAs(O,F)薄膜上のCaF2層の成長及び接合作製

    • Author(s)
      角谷直紀,川口昂彦,田渕雅夫,宇治原徹,生田博志
    • Organizer
      2013年春季第60回応用物理学会春季学術講演会
    • Place of Presentation
      神奈川工科大学
    • Related Report
      2012 Annual Research Report
  • [Presentation] BaFe2(As,P)2薄膜のMBE成長と接合作製

    • Author(s)
      森康博,坂上彰啓,川口昂彦,田渕雅夫,宇治原徹,生田博志
    • Organizer
      2013年春季第60回応用物理学会春季学術講演会
    • Place of Presentation
      神奈川工科大学
    • Related Report
      2012 Annual Research Report

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Published: 2013-05-15   Modified: 2019-07-29  

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