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Scanning Tunneling Microscopy of Vortex Dynamics in Superconductors with High Time resolution

Research Project

Project/Area Number 19340096
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics II
Research InstitutionTokyo Institute of Technology

Principal Investigator

NISHIDA Nobuhiko  Tokyo Institute of Technology, 大学院・理工学研究科, 教授 (50126140)

Co-Investigator(Kenkyū-buntansha) 大熊 哲  東京工業大学, 極低温物性研究センター, 准教授 (50194105)
Co-Investigator(Renkei-kenkyūsha) OKUMA Satoshi  東京工業大学, 大学院・理工学研究科, 准教授 (50194105)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
Fiscal Year 2008: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2007: ¥15,730,000 (Direct Cost: ¥12,100,000、Indirect Cost: ¥3,630,000)
Keywords超伝導 / 量子渦糸 / 走査トンネル顕微鏡 / 渦糸クリープ / 超伝導量子渦糸 / 超薄膜 / 低温物性 / 渦糸ガラス / 渦糸物質 / 走査プローブ顕微鏡 / 超精密測定
Research Abstract

極低温(0.16K)・高磁場(15T)ではたらく走査トンネル顕微鏡を開発、これを用いて、磁場4Tまで、温度0.4K、4.2Kにおいて第2種超伝導体YNi2B2Cの超伝導渦糸の磁場勾配を駆動力とする渦糸集団運動を可視化し、動画を作ることに成功した。渦糸格子の刃状転位が、渦糸束の大きさを決め、渦糸集団運動に重要な働きをしていることを、走査トンネル顕微鏡による実空間・実時間測定により初めて明らかにした。

Report

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

    (17 results)

All 2008 2007

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (16 results)

  • [Journal Article] Anti-phase modulatio of Electron-and Hole-like States in Vbrtex Core of Bi2Sr2CaCu2Ox probed by Scanning Tunneling Spectroscopy2007

    • Author(s)
      K. Matsuba、 S. Yoshizawa, Y. Mochizuki, T. Mochiku, K. Hirata, N. Nishida
    • Journal Title

      J. ournal of Physical Society of Japan 76

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] 空間反転対称性のない結晶構造をもつ超伝導体Li2Pt3Bの走査トンネル分光2008

    • Author(s)
      山崎啓吾、鈴木慧、金子真一、竹屋浩幸、平田和人、西田信彦
    • Organizer
      日本物理学会(2008年秋季大会)
    • Place of Presentation
      岩手大学(盛岡)
    • Year and Date
      2008-09-23
    • Related Report
      2008 Final Research Report
  • [Presentation] 空間反転対称性のない結晶構造をもっ超伝導体Li2Pt3Bの走査トンネル分光2008

    • Author(s)
      山崎啓吾, 鈴木慧, 金子真一, 竹屋浩幸, 平田和人, 西田信彦
    • Organizer
      日本物理学会(2008年秋季大会)
    • Place of Presentation
      岩手大学(盛岡)
    • Year and Date
      2008-09-23
    • Related Report
      2008 Annual Research Report
  • [Presentation] アモルファスNb超伝導薄膜転移温度と上部臨界磁場の膜厚依存性2008

    • Author(s)
      大塚洋輔、富田祐平、金子真一、西田信彦
    • Organizer
      日本物理学会(2008年秋季大会)
    • Place of Presentation
      岩手大学(盛岡)
    • Year and Date
      2008-09-20
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] Vortex Bound Stat es in Anisotropic Superconductors probe d b0.y Scanning Tunneling Spectroscop y(Invited Talk)2008

    • Author(s)
      Nobuhikko Nishida
    • Organizer
      NES Workshop : Probin g Superconductivity atthe Nanoscale
    • Place of Presentation
      Alicante, Spain
    • Year and Date
      2008-06-04
    • Related Report
      2008 Final Research Report
  • [Presentation] Vortex Bound States in Anisotropic Superconductors probed by Scanning Tunneling Spectroscopy2008

    • Author(s)
      西田信彦
    • Organizer
      NES Workshop : Probing Superconductivity at the Nanoscale
    • Place of Presentation
      Alicante, Spain
    • Year and Date
      2008-06-04
    • Related Report
      2008 Annual Research Report
  • [Presentation] Collective Vortex Motion in Dislocated Vortex Lattice observed by Scanning Tunneling Spectroscopy2007

    • Author(s)
      K. Uchiyama, A. Kuwabara, S. Kaneko, H. Takeya, K. Hirata, N. Nishida
    • Organizer
      20th. International Symmposiumu on Superconductivity (ISS2007)
    • Place of Presentation
      エポカル、つくば市(茨城県)
    • Year and Date
      2007-11-07
    • Related Report
      2007 Annual Research Report
  • [Presentation] High-Precision Scanning Tunneling Spectroscopy of Vortex Core in High Temperature Superconductor Bi2Sr2CaCu2Ox; 20th. Int. Symposium on Superconductivity2007

    • Author(s)
      K. Matsuba, S. Yoshizawa, Y. Mochizuki, T. Mochiku, K. Hirata, and N. Nishida
    • Organizer
      20th. International Symmposiumu on Superconductivity (ISS2007)
    • Place of Presentation
      エポカル、つくば市(茨城県)
    • Year and Date
      2007-11-07
    • Related Report
      2007 Annual Research Report
  • [Presentation] Anti-phase Modulation of Electron-and Hole-like States in Vortex Core of Bi2Sr2CaCu2Ox revealed by Scanning Tunneling Spectroscopy2007

    • Author(s)
      N. Nishida, K. Matsuba, S. Yoshizawa, Y. Mochizuki, T. Mochiku, K. Hirata
    • Organizer
      5th. Int. Conf. On Vortex Matter in Nanostructured Supercondctors
    • Place of Presentation
      ギリシヤ、ロドス島
    • Year and Date
      2007-09-08
    • Related Report
      2007 Annual Research Report
  • [Presentation] High Precision Scanning Tunneling Spectroscopy of Vortex Core in High Temperature Superconductor Bi2Sr2CaCu2Ox2007

    • Author(s)
      K. Matsuba, S. Yoshizawa, Y. Mochizuki, T. Mochiku, K. Hirata, and N. Nishida
    • Organizer
      20^<th> Int. Symposium on Superconductivity(ISS2007)
    • Place of Presentation
      Tsukuba, Japan
    • Related Report
      2008 Final Research Report
  • [Presentation] 走査トンネル分光法による超伝導渦糸状態の研究2007

    • Author(s)
      西田信彦
    • Organizer
      東京大学物性研究所短期研究会「低温走査トンネル顕微鏡の現状と展望」
    • Place of Presentation
      東京大学物性研究所
    • Related Report
      2008 Final Research Report
  • [Presentation] Atomic resolution Scanning Tunneling Spectroscopy of Vortex Core States in Bi2Sr2CaCu2Ox2007

    • Author(s)
      Ken Matsuba, Shunsuke Yoshizawa, Yugo Mochizuki, Takashi Mochiku, Kazuto Hirata, and Nobuhiko Nishida
    • Organizer
      Spectroscpies in Novel Superconductors
    • Place of Presentation
      Sendai, Japan
    • Related Report
      2008 Final Research Report
  • [Presentation] Anti phase Modulation of Electron and Hole like States in Vortex Core of Bi2Sr2CaCu2Ox revealed by Scanning Tunneling Spectroscopy2007

    • Author(s)
      N. Nishida, K. Matsuba, S. Yoshizawa, Y. Mochizuki, T. Mochiku, K. Hirata
    • Organizer
      5th. Int. Conf. On Vortex Matter in Nanostructured Supercondctors
    • Place of Presentation
      Rhodes, Greece
    • Related Report
      2008 Final Research Report
  • [Presentation] Vortex lattice symmetry in filled skutterudite compound PrOs4Sb122007

    • Author(s)
      S. Kaneko, M. Furuyama, K. Takano, H. Sugawara, Y. Aoki, H. Sato, and N. Nishida
    • Organizer
      5th. Int. Conf. On Vortex Matter in Nanostructured Supercondctors
    • Place of Presentation
      Rhodes, Greece
    • Related Report
      2008 Final Research Report
  • [Presentation] 走査トンネル分光法によるPrOs4Sb12の研究II2007

    • Author(s)
      金子真一, 高野浩史, 菅原仁, 青木勇二, 佐藤英行, 西田信彦
    • Organizer
      日本物理学会第62回年次大会
    • Place of Presentation
      北海道大学
    • Related Report
      2008 Final Research Report
  • [Presentation] 転位を媒介とした渦糸格子運動の実空間測定2007

    • Author(s)
      内山和治, 桑原陽, 鈴木慧, 金子真一, 竹屋浩幸, 平田和人, 西田信彦
    • Organizer
      日本物理学会第62回年次大会
    • Place of Presentation
      北海道大学
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] Bi2Sr2CaCu2Ox渦糸芯STS高精度測定2007

    • Author(s)
      吉澤俊介, 松葉健, 望月勇吾, 茂筑高士, 平田和人, 西田信彦
    • Organizer
      日本物理学会第62回年次大会
    • Place of Presentation
      北海道大学
    • Related Report
      2008 Final Research Report

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

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