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Development of iron based materials with three dimensional network structures toward the realization of high Tc superconductivity

Research Project

Project/Area Number 15K17705
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Condensed matter physics II
Research InstitutionNagoya University

Principal Investigator

Katayama Naoyuki  名古屋大学, 工学研究科, 准教授 (50623758)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords鉄系超伝導 / 次元性 / 構造解析 / 112型 / 放射光X線 / 新構造 / 超伝導 / 鉄系 / 放射光X線 / 置換効果
Outline of Final Research Achievements

We explored novel iron based superconductors with three dimensional network structures, which sharply differs from the precedented iron based superconductors with two dimensional network structures. The candidate materials Can(n+1)/2(Fe1-xPtx)(2+3n)Ptn(n-1)/2As(n+1)(n+2)/2 (n = 2, 3) did not show bulk superconductivity in the present works, however, n = 3 system exhibited the non-bulk superconductivity with Tc ~ 30 K. Our further experimental studies have clarified two unprecedented 112-type iron arsenides with the chemical composition of Ca1-xLaxFe-yPdyAs2, which are the isostructural materials with Ca1-xLaxFeAs2 with Tc = 34 K. From the comprehensive studies between the synchrotron X-ray diffraction and the XAFS experiments, we clarified that they are the parent materials with the potential toward the realization of high Tc superconductivity.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (10 results)

All 2017 2016 2015

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Acknowledgement Compliant: 2 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 3 results)

  • [Journal Article] 1.Various Arsenic Network Structures in 112-Type Ca1-xLaxFe1-yPdyAs2 Revealed by Synchrotron X-ray Diffraction Experiments2017

    • Author(s)
      S. Tamura, N. Katayama, Y. Yamada, Y. Sugiyama, K. Sugawara and H. Sawa
    • Journal Title

      Inorganic Chemistry

      Volume: 56 Issue: 5 Pages: 3033-3035

    • DOI

      10.1021/acs.inorgchem.6b03115

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Colossal negative thermal expansion in reduced layered ruthenate2017

    • Author(s)
      Koshi Takenaka, Yoshihiko Okamoto, Tsubasa Shinoda, Naoyuki Katayama, Yuki Sakai
    • Journal Title

      Nature Communications

      Volume: 8 Issue: 1 Pages: 14102-14102

    • DOI

      10.1038/ncomms14102

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 2.Iron arsenides with three-dimensional FeAs layer networks: Can(n+1)/2(Fe1-xPtx)(2+3n)Ptn(n-1)/2As(n+1)(n+2)/2 (n = 2, 3)2016

    • Author(s)
      N. Katayama, S. Onari, K. Matsubayashi, Y. Uwatoko, and H. Sawa
    • Journal Title

      Scientific Reports

      Volume: 6 Issue: 1 Pages: 39280-39280

    • DOI

      10.1038/srep39280

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Synchrotron X-ray diffraction study of 112-type Ca1-xLaxFeAs22015

    • Author(s)
      Katayama, N; Sugawara, K; Nakano, A; Kitou, S; Sugiyama, Y; Kawaguchi, N; Ito, H; Higuchi, T; Fujii, T; Sawa, H
    • Journal Title

      Physica C

      Volume: 518 Pages: 10-13

    • DOI

      10.1016/j.physc.2015.04.001

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] Absence of Jahn-Teller transition in the hexagonal Ba3CuSb2O9 single crystal2015

    • Author(s)
      Naoyuki Katayama, Kenta Kimura, Yibo Han, Joji Nasu, Natalia Drichko, Yoshiki Nakanishi, Mario Halim,Yuki Ishiguro, Ryuta Satake, Eiji Nishibori, Masahito Yoshizawa, Takehito Nakano, Yasuo Nozue, Yusuke Wakabayashi, Sumio Ishihara, Masayuki Hagiwara, Hiroshi Sawa, and Satoru Nakatsuji
    • Journal Title

      Proc. Natl. Acad. Sci. USA

      Volume: 112 Issue: 30 Pages: 9305-9309

    • DOI

      10.1073/pnas.1508941112

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Various Arsenic Network Structures in 112-type Ca1-xLaxFe1-yPdyAs2 Revealed by Synchrotron X-ray Diffraction Experiments2017

    • Author(s)
      Naoyuki Katayama
    • Organizer
      AnalytiX-2017
    • Place of Presentation
      ヒルトン福岡シーホーク
    • Year and Date
      2017-03-22
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 多彩なヒ素ネットワーク構造を持つ112型鉄ヒ化物の構造物性研究2017

    • Author(s)
      片山尚幸, 田村慎也, 山田悠人, 澤博
    • Organizer
      日本物理学会2017年春季大会
    • Place of Presentation
      大阪大学
    • Year and Date
      2017-03-17
    • Related Report
      2016 Annual Research Report
  • [Presentation] 励起子絶縁体候補物質Ta2NiSe5への化学置換効果2016

    • Author(s)
      田村慎也, 中埜彰俊, 片山尚幸, 澤博
    • Organizer
      日本物理学会2016春季大会
    • Place of Presentation
      仙台市
    • Year and Date
      2016-03-19
    • Related Report
      2015 Research-status Report
  • [Presentation] エキシトニック絶縁体候補物質 Ta2NiSe5の高圧下放射光X線構造解析2015

    • Author(s)
      片山尚幸
    • Organizer
      Workshop: CROSSroads of Users and J-PARC 第16回 「電子物性研究とその将来」
    • Place of Presentation
      東海市
    • Year and Date
      2015-10-14
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] Deveopment of novel iron arsenides with arsenic network structures: 112-type Ca1-xLaxFeAs2 and its related materials2015

    • Author(s)
      N. Katayama
    • Organizer
      EMN Qingdao Meeting
    • Place of Presentation
      Qindao, China
    • Year and Date
      2015-06-14
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2015-04-16   Modified: 2020-05-15  

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