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Crystal Growth of Triple Layered Bismuth Based High-Tc Superconductors

Research Project

Project/Area Number 19540354
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics II
Research InstitutionHirosaki University

Principal Investigator

WATANABE Takao  Hirosaki University, 大学院・理工学研究科, 教授 (40431431)

Co-Investigator(Kenkyū-buntansha) FUJII Takenori  東京大学, 低温センター, 助教 (80361666)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2008: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2007: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Keywordsビスマス系高温超伝導体 / 単結晶 / 擬ギャップ / c軸抵抗率 / 負の磁気抵抗 / 超伝導ゆらぎ / 量子臨界点 / Bi-2223単結晶 / Bi-2212単結晶 / 単結晶育成 / Pbドーピング / 温度勾配
Research Abstract

3枚のCuO_2面(n=3)を持つ銅酸化物高温超伝導物質Bi_2Sr_2Ca_2Cu_3O_<10+δ>(Bi-2223)は、CuO_2面の多層化に伴う高温超伝導体の超伝導転移温度Tcの向上の要因を探る上で格好の材料である。本研究では、この物質の大型で高品質な単結晶を育成することに見通しを得た。また、高温超伝導理論の最大の争点である擬ギャップ(常伝導状態で低エネルギーの状態密度が減少する現象)の起源について、超伝導とは競合するなんらかの秩序形成を意味する可能性を、磁場中のc軸抵抗率の測定から実験的に明らかにした。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (19 results)

All 2009 2008 2007

All Journal Article (9 results) (of which Peer Reviewed: 8 results) Presentation (10 results)

  • [Journal Article] Experimental Presentation of Microwave Absorption due to Shaking of JV by AC Magnetic Field in Bi2212 and Bi22232009

    • Author(s)
      D. Shaltiel, H.-A. Krug von Nidda, B. Y. Shapiro, B. Rosenstein, A. Loidl, B. Bogoslavsky, I. Shapiro, T. Fujii, T. Watanabe, T. Tamegai
    • Journal Title

      J.Supercond. Nov.Mag vol.22 no.4

      Pages: 387-399

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] 過剰ドープBi_2Sr_2CaCu_2O_<8+δ>の磁場中c抵抗率評価2008

    • Author(s)
      村田康介、櫛引治樹、渡辺孝夫、工藤一貴、西崎照和、山田和芳、小林典男、野地尚、小池 洋二
    • Journal Title

      東北大学金属材料研究所 強磁場超伝導材料研究センター

    • Related Report
      2008 Final Research Report
  • [Journal Article] Tunneling characteristics for nm-thick mesas consisting of a few intrinsic Josephson junctions2008

    • Author(s)
      M. Suzuki, M. Ohmaki, R. Takemura, K. Hamada, T. Watanabe, K. Ota, H. Kitano, A. Maeda
    • Journal Title

      J. Phys. : Conf.Ser. vol.129

      Pages: 12033-12033

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Tunneling characteristics for nm-thick mesas consisting of a few intrinsic Josephson junctions2008

    • Author(s)
      M. Suzuki
    • Journal Title

      J. Phys. : Conf. Ser 129

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interaction of AC magnetic field with Josephson vortices in high anisotropy superconductors Bi2212 and Bi22232007

    • Author(s)
      D. Shaltiel, H.-A. Krug von Nidda, B. Ya. Shapiro, I. Shapiro, A. Loidl, T. Kurz, B. Bogoslavsky, T. Tamagai, O. Fischer, A. Piriou, E. Giannini, T. Watanabe, T. Fujii, A. Matsuda, B. Rosenstein
    • Journal Title

      Physica C vol.460-462 no.2

      Pages: 1238-1240

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Anomalous strong doping dependence of the maximum Josephson current in intrinsic Josephson junctions and inhomogeneous superconducting state in Bi_2Sr_2CaCu_2O_<8+δ>2007

    • Author(s)
      M. Suzuki, Y. Yamada, T. Hamatani, K. Anagawa, T. Watanabe
    • Journal Title

      Physica C vol.460-462 no.1

      Pages: 386-387

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Fabrication and Transport Properties for Cleaved Thin Film BSCCO Single Crystals2007

    • Author(s)
      Y. Yamada, T. Watanabe, M. Suzuki
    • Journal Title

      IEEE Trans. Appl. Supercond. vol.17 no.2

      Pages: 3533-3536

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Systematic transport properties and their doping dependences for Bi_2Sr_2CaCu_2O_<8+δ> single crystals in a wide doping range2007

    • Author(s)
      Y. Yamada, T. Watanabe, M. Suzuki
    • Journal Title

      Physica C vol.460-462 no.2

      Pages: 815-816

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Farication of Small Mesa Structures of Bi_2Sr_2CaCu_2O_<8+δ> Intrinsic Josephson Junctions Using Polyimide Process : Improvement of Current-Voltage Characteristics with a Very Small Number of Junctions2007

    • Author(s)
      R. Takemura, M. Ohmaki, T. Kumano, T. Watanabe, M. Suzuki
    • Journal Title

      Jpn.J.Appl.Phys.pt.2 vol.46 no.33-35

      Pages: 5788-5791

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Presentation] Bi系高温超伝導体固有接合の極薄メサ構造におけるスイッチング確率分布2009

    • Author(s)
      立木孝典、濱田憲治、掛谷一弘、渡辺孝夫、鈴木実
    • Organizer
      第56回応用物理学関連連合講演会
    • Place of Presentation
      筑波大学
    • Year and Date
      2009-04-02
    • Related Report
      2008 Final Research Report
  • [Presentation] 過剰ドープBi-2212の磁場中c軸抵抗率2009

    • Author(s)
      村田康介、櫛引治樹、渡辺孝夫、工藤一貴、西崎照和、山田和芳、小林典男、野地尚、小池洋二
    • Organizer
      日本物理学会第64回年次大会
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-30
    • Related Report
      2008 Final Research Report
  • [Presentation] 過剰ドープBi-2212の磁場中c軸抵抗率2009

    • Author(s)
      渡辺孝夫
    • Organizer
      日本物理学会
    • Place of Presentation
      立教大学(東京)
    • Year and Date
      2009-03-30
    • Related Report
      2008 Annual Research Report
  • [Presentation] La_<1.85>Sr_<0.15>CuO_4におけるネルンスト効果に対する乱れの影響2009

    • Author(s)
      松嶋友則、藤井武則、朝光敦
    • Organizer
      日本物理学会第64回年次大会
    • Place of Presentation
      立教大学
    • Year and Date
      2009-03-27
    • Related Report
      2008 Final Research Report
  • [Presentation] La_<1.85-y>_Nd_ySr_<0.15>CuO_4のネルンスト効果と電荷秩序2008

    • Author(s)
      松嶋友則、藤井武則、朝光敦
    • Organizer
      日本物理学会2008年秋季大会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-22
    • Related Report
      2008 Final Research Report
  • [Presentation] Bi-2212の磁場中c軸抵抗率2008

    • Author(s)
      村田康介、櫛引治樹、渡辺孝夫、工藤一貴、西崎照和、山田和芳、小林典男
    • Organizer
      日本物理学2008年秋季大会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-20
    • Related Report
      2008 Final Research Report
  • [Presentation] Bi-2212の磁場中c軸抵抗率2008

    • Author(s)
      渡辺孝夫
    • Organizer
      日本物理学会
    • Place of Presentation
      岩手大学(盛岡)
    • Year and Date
      2008-09-20
    • Related Report
      2008 Annual Research Report
  • [Presentation] La<1.85-y>Nd_ySr<0.15>CuO_4のNernst効果2008

    • Author(s)
      松嶋友則、藤井武則、朝光敦
    • Organizer
      日本物理学会第63回年次大会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-24
    • Related Report
      2008 Final Research Report
  • [Presentation] Bi_2Sr_2CaCu_2O_<8+d>固有トンネル分光におけるピークの磁場依存性2007

    • Author(s)
      武村亮太、大牧正幸、濱田憲治、渡辺孝夫、鈴木実
    • Organizer
      応用物理学会
    • Place of Presentation
      北海道工業大学
    • Year and Date
      2007-09-04
    • Related Report
      2008 Final Research Report
  • [Presentation] 微小メサ型Bi_2Sr_2CaCu_2O_<8+d>固有ジョセフソン接合のI_c確率分布と脱出温度2007

    • Author(s)
      濱田憲治、大牧正幸、武村亮太、渡辺孝夫、鈴木実
    • Organizer
      応用物理学会
    • Place of Presentation
      北海道工業大学
    • Year and Date
      2007-09-04
    • Related Report
      2008 Final Research Report

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Published: 2007-04-01   Modified: 2020-05-15  

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