• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Study on the newly discovered 80 K-class superconductivity in high-temperature cuprate superconductors

Research Project

Project/Area Number 22540362
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics II
Research InstitutionUniversity of Tsukuba

Principal Investigator

YOSHIZAKI Ryozo  筑波大学, 名誉教授 (70011137)

Co-Investigator(Kenkyū-buntansha) KADOWAKI Kazuo  筑波大学, 数理物質系, 教授 (00272170)
IKEDA Hiroshi  筑波大学, 数理物質系, 准教授 (50272167)
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords高温超伝導 / 銅酸化物高温超伝導体 / Bi-2201相 / 高い転移温度 / ユニバーサル関係式 / 銅ー頂点酸素距離 / Caドープ / 銅酸化物高温超伝導 / Ca-ドーピング / CuO_2面1層系 / 頂点酸素 / 銅酸化物 / 新超伝導物質 / 不均一性
Research Abstract

We succeeded in the present project that the transition temperature (T_c) of the hole-doped cuprate superconductors in Bi-2201 phase was raised up to 86.5 K by partial substitution of Ca for Sr in zero-resistance temperature. The origin of the higher T_c is clarified due to the elongation of the Cu-apical oxygen distance (d_A) for the Ca-doped compounds. The correlation between T_c and d_A was found for whole hole-doped cuprate superconductors.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (19 results)

All 2013 2012 2011 2010 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (14 results)

  • [Journal Article] A New Aspect of Single Layered Cuprate Superconductors -90 K Superconductors for Ca-Doped Bi_2Sr_2CuO<_6+>Single Crystals2012

    • Author(s)
      R. Yoshizaki, T. Yamamoto, H. Ikeda,and K. Kadowaki
    • Journal Title

      J. Physics: Conf. Series

      Volume: 400 Pages: 22142-22142

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] A new aspect of single-layered cuprate superconductors - 90 K superconductors for Ca-Doped Bi2Sr2CuO6+d single crystals2012

    • Author(s)
      R. Yoshizaki, T. Yamamoto, H. Ikeda, and K. Kadowaki
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 400 Issue: 2 Pages: 22142-22142

    • DOI

      10.1088/1742-6596/400/2/022142

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Properties of Ca-doped Bi_<2+>xSr_<2->xCuO_<6+δ>2010

    • Author(s)
      R. Yoshizaki, H. Ikeda, K. Kadowaki
    • Journal Title

      Physica C: Superconductivity

      Volume: Supplement 1, 470

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Properties of Ca-doped Bi_<2+x>Sr_<2-x>CuO_<6+δ>2010

    • Author(s)
      R.Yoshizaki, H.Ikeda, K.Kadowaki
    • Journal Title

      Physica C

      Volume: 470 Pages: 5193-5194

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A new aspect of single-layered cuprate superconductors-90K superconductors for Ca-Doped Bi_2Sr_2CuO_<6+δ> single crystals

    • Author(s)
      R.Yoshizaki, T.Yamamoto, H.Ikeda, K.Kadowaki
    • Journal Title

      Journal of Physics, Conference Series

      Volume: (印刷中)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] CaをドープしたBi-2201 相単結晶およびその他の銅酸化物超伝導物性研究2013

    • Author(s)
      吉崎亮造、池田博、門脇和男
    • Organizer
      吉崎亮造、池田博、門脇和男
    • Place of Presentation
      広島大学
    • Year and Date
      2013-03-27
    • Related Report
      2012 Final Research Report
  • [Presentation] CaをドープしたBi-2201相単結晶の物性研究III2012

    • Author(s)
      吉崎亮造、池田博、門脇和男
    • Organizer
      2012年日本物理学会秋季大会
    • Place of Presentation
      横浜国立大学
    • Year and Date
      2012-09-20
    • Related Report
      2012 Final Research Report
  • [Presentation] CaをドープしたBi-2201相単結晶の物性研究II2012

    • Author(s)
      吉崎亮造、山本卓、池田博、門脇和男
    • Organizer
      2012年日本物理学会第67回年次大会
    • Place of Presentation
      関西学院大学
    • Year and Date
      2012-03-24
    • Related Report
      2012 Final Research Report
  • [Presentation] CaをドープしたBi-2201相単結晶の超伝導物性研究II2012

    • Author(s)
      吉崎亮造、池田博、門脇和男
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西学院大学(西宮市)
    • Year and Date
      2012-03-24
    • Related Report
      2011 Annual Research Report
  • [Presentation] 2011年日本物理学会秋季大会2011

    • Author(s)
      吉崎亮造、山本卓、池田博、門脇和男、佐 々木聡
    • Organizer
      CaドープしたBi-2201相単結晶の超伝導物性研究
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-26
    • Related Report
      2012 Final Research Report
  • [Presentation] CaをドープしたBi-2201相単結晶の超伝導物性研究2011

    • Author(s)
      吉崎亮造、山本卓、池田博、門脇和男、佐々木聡
    • Organizer
      日本物理学会第66回秋季大会
    • Place of Presentation
      富山大学(富山市)
    • Year and Date
      2011-09-22
    • Related Report
      2011 Annual Research Report
  • [Presentation] A New Aspect of Single-Layered Cuprate Superconductors -90 K Superconductors for Ca-Doped Bi_2Sr_2CuO_<6+> Single Crystals2011

    • Author(s)
      R. Yoshizaki, T. Yamamoto, H. Ikeda, and K. Kadowaki
    • Organizer
      International Conference on Low Temperature Physics
    • Place of Presentation
      Convention Hall in Beijin, 中華人民共和国
    • Year and Date
      2011-08-12
    • Related Report
      2012 Final Research Report
  • [Presentation] A new aspect of single-layered cuprate superconductors-90K superconductors for Ca-Doped Bi_2Sr_2CuO_<6+δ> single crystals2011

    • Author(s)
      R.Yoshizaki, T.Yamamoto, H.Ikeda, K.Kadowaki
    • Organizer
      26th International Conference on Low Temperature Physics
    • Place of Presentation
      Beijing, Chaina
    • Year and Date
      2011-08-12
    • Related Report
      2011 Annual Research Report
  • [Presentation] Bi-220相におけるCaドーピング効果の研究V2011

    • Author(s)
      吉崎亮造、山本卓、池田博、門脇和男
    • Organizer
      日本物理学会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-26
    • Related Report
      2010 Annual Research Report
  • [Presentation] Bi-2201相におけるCaドーピング効果の研究(V)2011

    • Author(s)
      吉崎亮造、山本卓、池田博、門脇和男
    • Organizer
      2011年日本物理学会第65回年次大会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-22
    • Related Report
      2012 Final Research Report
  • [Presentation] Bi-2201相におけるCaドーピング効果の研究(IV)2010

    • Author(s)
      崎亮造、山本卓、池田博、門脇和男
    • Organizer
      2010年日本物理学会秋季大会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-23
    • Related Report
      2012 Final Research Report
  • [Presentation] Bi-220相におけるCaドーピング効果の研究IV2010

    • Author(s)
      吉崎亮造、山本卓、池田博、門脇和男
    • Organizer
      日本物理学会
    • Place of Presentation
      熊本大学
    • Year and Date
      2010-09-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] CaをドープしたBi-2201相単結晶の物性研究III

    • Author(s)
      吉崎亮造、池田博、門脇和男
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      横浜国立大学常盤台キャンパス
    • Related Report
      2012 Annual Research Report
  • [Presentation] CaをドープしたBi-2201 相単結晶およびその他の銅酸化物超伝導物性研究

    • Author(s)
      吉崎亮造、池田博、門脇和男
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学東広島キャンパス
    • Related Report
      2012 Annual Research Report

URL: 

Published: 2010-08-23   Modified: 2020-05-15  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi