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Theoretical study on Josephson effect of nanostructure systems in anisotropic superconductors

Research Project

Project/Area Number 19740220
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Condensed matter physics II
Research InstitutionAkita University (2008-2010)
Kanagawa University (2007)

Principal Investigator

TANUMA Yasunari  Akita University, 工学資源学研究科, 准教授 (90360213)

Project Period (FY) 2007 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥2,450,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥450,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥500,000 (Direct Cost: ¥500,000)
Keywords異方的超伝導 / ジョセフソン効果 / 共鳴束縛状態 / 奇周波数ペア / アンドレーフ束縛状態 / 磁束量子状態 / 量子ドット
Research Abstract

I have theoretically studied and investigated in order to determine superconducting pairing symmetries of nanostructure systems in anisotropic superconductors. The internal phase of pair potentials in the tunneling and Josephson junctions cause the formation of the Andreev resonant bound states, where the quasiparticles feel a sign change of the pair potential. We have suggested how to discriminate the pairing symmetries of a chiral p-wave superconductor from the vortex-core tunneling spectroscopy via odd-frequency pairing amplitudes.

Report

(6 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report   Self-evaluation Report ( PDF )
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (35 results)

All 2011 2010 2009 2008 2007

All Journal Article (14 results) (of which Peer Reviewed: 12 results) Presentation (21 results)

  • [Journal Article] カイラルp波超伝導体の渦糸芯-トンネル分光と奇周波数ペア2011

    • Author(s)
      田沼慶忠
    • Journal Title

      秋田大学総合情報処理センター広報 14巻

      Pages: 2-8

    • Related Report
      2010 Final Research Report
  • [Journal Article] カイラルp波超伝導体の渦糸芯-トンネル分光と奇周波数ペア2011

    • Author(s)
      田沼慶忠
    • Journal Title

      秋田大学総合情報処理センター広報

      Volume: 14 Pages: 2-8

    • Related Report
      2010 Annual Research Report
  • [Journal Article] Model for vortex-core tunneling spectroscopy of chiral p-wave superconductors via oddfrequency pairing states2009

    • Author(s)
      Y.Tanuma、N.Hayashi、Y.Tanaka、A.A.Golubov
    • Journal Title

      Physical Review Letters Vol.102

      Pages: 117003-117003

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Model for vortex-core tunneling spectroscopy of chiral p-wave superconductors via odd- frequency pairing states2009

    • Author(s)
      Y. Tanuma, N. Hayashi, Y. Tanaka, A.A. Golubov
    • Journal Title

      Physical Review Letters 102

      Pages: 117003-117003

    • Related Report
      2009 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Model for vortex-core tunneling spectroscopy of chiral p-wave superconductors via odd-frequency pairing states2009

    • Author(s)
      Y.Tanuma, N.Hayashi, Y.Tanaka, A.A.Golubov
    • Journal Title

      Physical Reviw Letters 102

      Pages: 117003-117003

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Model for vortex- core tunneling spectroscopy of chiral p- wave superconductors via odd- frequency pairing states2009

    • Author(s)
      Y. Tanuma, N. Hayashi, Y. Tanaka, A.A. Golubov
    • Journal Title

      Physical Reviw Letters 102

      Pages: 117003-117003

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Odd-frequency pairing state in superconducting junctions2008

    • Author(s)
      Y.Tanaka、A.A.Golubov、Y.Tanuma
    • Journal Title

      Journal of Physical Chemistry of Solids Vol.69

      Pages: 3244-3266

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Odd-frequency pairing state in super- conducting junctions2008

    • Author(s)
      Y. Tanaka, A.A. Golubov, Y. Tanuma
    • Journal Title

      Journal of Physical Chemistry of Solids 69

      Pages: 3244-3266

    • Related Report
      2009 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Odd-frequency pairing state in superconducting junctions2008

    • Author(s)
      Y. Tanaka, A.A. Golubov, Y. Tanuma
    • Journal Title

      Journal of Physical Chemistry of Solids 69

      Pages: 3244-3266

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Josephson current through a nanoscale quantum dot contacted by conventional superconductors2007

    • Author(s)
      Y.Tanuma、Y.Tanaka、K.Kusakabe
    • Journal Title

      Physica E Vol.40

      Pages: 257-260

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Odd-frequency pairing in normalmetal/superconductor junctions2007

    • Author(s)
      Y.Tanaka、Y.Tanuma、A.A.Golubov
    • Journal Title

      Physical Review B Vol.76

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Odd-frequency pairing in normal- metal/superconductor junctions2007

    • Author(s)
      Y. Tanaka, Y. Tanuma, A.A. Golubov
    • Journal Title

      Physical Review B 76

      Pages: 54522-54522

    • Related Report
      2009 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Josephson current through a nanoscale quantum dot contacted by conventional superconductors2007

    • Author(s)
      Y. Tanuma, Y. Tanaka, K. Kusakabe
    • Journal Title

      Physica E 40

      Pages: 257-260

    • Related Report
      2009 Self-evaluation Report 2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Odd-frequency pairing in normal-metal/superconductor junctions2007

    • Author(s)
      Y. Tanaka, Y. Tanuma, A.A. Golubov
    • Journal Title

      Physical Review B 76

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] カイラルp波超伝導体渦芯周りの奇周波数ペアと不純物散乱II2010

    • Author(s)
      田沼慶忠、林伸彦、田仲由喜夫、A.A.Golubov
    • Organizer
      日本物理学会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-23
    • Related Report
      2010 Final Research Report
  • [Presentation] カイラルp波超伝導体渦芯周りの奇周波数ペアと不純物散乱II2010

    • Author(s)
      田沼慶忠、林伸彦、田仲由喜夫、A.A.Golubov
    • Organizer
      日本物理学会2010年秋季大会
    • Place of Presentation
      岡山大学
    • Related Report
      2009 Annual Research Report
  • [Presentation] カイラルp波超伝導体渦芯周りの奇周波数ペアと不純物散乱2009

    • Author(s)
      田沼慶忠、林伸彦、田仲由喜夫、A.A.Golubov
    • Organizer
      日本物理学会
    • Place of Presentation
      熊本大学
    • Year and Date
      2009-09-27
    • Related Report
      2010 Final Research Report 2009 Self-evaluation Report
  • [Presentation] Theoretical study on tunneling spectroscopy of chiral p-wave superconductors with odd-frequency pair amplitudes induced around a vortex core2009

    • Author(s)
      Y.Tanuma、N.Hayashi、Y.Tanaka、A.A.Golubov
    • Organizer
      9^<th> International Conference on Materials and Mechanisms (M2S-IX)
    • Place of Presentation
      京王プラザホテル
    • Year and Date
      2009-09-09
    • Related Report
      2010 Final Research Report
  • [Presentation] How to determine pairing symmetries of chiral p-wave superconductors from vortex-core tunneling spectroscopy via odd-frequency pairings2009

    • Author(s)
      Y.Tanuma、N.Hayashi、Y.Tanaka、A.A.Golubov
    • Organizer
      New directions of superconducting nanostructures 2009 (NDSN 2009)
    • Place of Presentation
      Nagoya University
    • Year and Date
      2009-09-04
    • Related Report
      2010 Final Research Report
  • [Presentation] How to determine pairing symmetries of chiral p-wave super- conductors from vortex-core tunneling spectroscopy via odd-frequency pairings2009

    • Author(s)
      Y. Tanuma, N. Hayashi, Y. Tanaka, A.A. Golubov
    • Organizer
      New directions of superconducting nanostructures 2009 (NDSN 2009)
    • Place of Presentation
      Nagoya University
    • Year and Date
      2009-09-04
    • Related Report
      2009 Self-evaluation Report
  • [Presentation] How to determine pairing symmetries of chiral p-wave superconductors from vortex-core tunneling spectroscopy via odd-frequency pairings2009

    • Author(s)
      田沼慶忠, 林伸彦, 田仲由喜夫, A.A.Golubov
    • Organizer
      New directions of superconducting nanostructures 2009(NDSN 2009)
    • Place of Presentation
      名古屋大学
    • Related Report
      2009 Annual Research Report
  • [Presentation] カイラルp波超伝導体渦芯周りの奇周波数ペアと不純物散乱2009

    • Author(s)
      田沼慶忠、林伸彦、田仲由喜夫、A.A.Golubov
    • Organizer
      日本物理学会2009年秋季大会
    • Place of Presentation
      熊本大学
    • Related Report
      2009 Annual Research Report
  • [Presentation] Theoretical study on tunneling spectroscopy of chiral p-wave superconductors with with odd-frequency pair amplitudes induced around a vortex core2009

    • Author(s)
      田沼慶忠, 林伸彦, 田仲由喜夫, A.A.Golubov
    • Organizer
      9th International Conference on Materials and Mechanisms(M2S-IX)
    • Place of Presentation
      京王プラザホテル
    • Related Report
      2009 Annual Research Report
  • [Presentation] 有限サイズの常伝導・異方的超伝導トンネル接合における奇周波数ペアと不純物効果2008

    • Author(s)
      田沼慶忠、田仲由喜夫、A.A. Golubov
    • Organizer
      日本物理学会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-22
    • Related Report
      2010 Final Research Report
  • [Presentation] 有限サイズの常伝導・異方的超伝導トンネル接合における奇周波数ペアと不純物効果2008

    • Author(s)
      田沼慶忠、田仲由喜夫、A.A.Golubov
    • 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 Annual Research Report
  • [Presentation] 不純物のあるカイラルp波超伝導ボルテックスと奇周波数ペア検証法2008

    • Author(s)
      田沼慶忠
    • Organizer
      京大基研研究会「不均一超伝導超流動状態と量子物理」
    • Place of Presentation
      京都大学基礎物理学研究所
    • Year and Date
      2008-08-01
    • Related Report
      2010 Final Research Report 2009 Self-evaluation Report 2008 Annual Research Report
  • [Presentation] 異方的超伝導磁束量子状態における奇周波数ペアと不純物効果2008

    • Author(s)
      田沼慶忠、林伸彦、田仲由喜夫、A.A.Golubov
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-23
    • Related Report
      2010 Final Research Report 2009 Self-evaluation Report
  • [Presentation] 異方的超伝導磁束量子状態における奇周波数ペアと不純物効果2008

    • Author(s)
      田沼慶忠、林伸彦、田仲由喜夫、A.A. Golubov
    • Organizer
      日本物理学会
    • Place of Presentation
      近畿大学本部キャンパス
    • Year and Date
      2008-03-23
    • Related Report
      2007 Annual Research Report
  • [Presentation] Odd-frequency pairing states near a superconducting vortex core with the winding number2007

    • Author(s)
      田沼慶忠、林伸彦、田仲由喜夫、A.A.Golubov
    • Organizer
      第2回若手研究者のための超伝導ナノサイエンスと応用に関する秋季国際セミナー
    • Place of Presentation
      ホテルエピナール那須
    • Year and Date
      2007-12-01
    • Related Report
      2010 Final Research Report 2007 Annual Research Report
  • [Presentation] s波超伝導体の磁束芯と奇周波数ペアリング2007

    • Author(s)
      田仲由喜夫、横山毅人、A.A. Golubov、田沼慶忠
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-24
    • Related Report
      2007 Annual Research Report
  • [Presentation] Josephson effet of d-wave superconductors through a nanoscale quantum dot2007

    • Author(s)
      Y.Tanuma、Y.Tanaka、K.Kusakabe
    • Organizer
      Spectroscopies in Novel Superconductors (SNS 2007)
    • Place of Presentation
      仙台国際センター
    • Year and Date
      2007-08-20
    • Related Report
      2010 Final Research Report
  • [Presentation] Josephson effect of d-wave superconductors through a nanoscale quantum dot2007

    • Author(s)
      田沼慶忠、田仲由喜夫、草部浩一
    • Organizer
      Spectroscopies in Novel Superconductors (SNS2007)
    • Place of Presentation
      近畿大学本部キャンパス
    • Year and Date
      2007-08-20
    • Related Report
      2007 Annual Research Report
  • [Presentation] Hidden odd-frequency pairing states in non-uniform superconductors2007

    • Author(s)
      Y.Tanuma、Y.Tanaka、A.A.Golubov
    • Organizer
      Workshop 'Physics of Nanoscale Superconducting Heterostructures '
    • Place of Presentation
      Lorentz Center (Leiden University, Netherlands)
    • Year and Date
      2007-06-23
    • Related Report
      2010 Final Research Report
  • [Presentation] Hidden odd-frequency pairing states in non-uniform superconductors2007

    • Author(s)
      Y. Tanuma, Y. Tanaka, A.A. Golubov
    • Organizer
      Workshop‘Physics of Nanoscale Superconducting Heterostructures'
    • Place of Presentation
      Lorentz Center (Leiden University, Netherlands)
    • Year and Date
      2007-06-23
    • Related Report
      2009 Self-evaluation Report
  • [Presentation] Hidden odd-frequency pairing states in non-uniform superconductors2007

    • Author(s)
      田沼慶忠、田仲由喜夫、A.A. Golubov
    • Organizer
      ワークショップ「ナノスケール超伝導ヘテロ構造の物理」
    • Place of Presentation
      ローレンツセンター(ライデン大学、オランダ)
    • Year and Date
      2007-06-23
    • Related Report
      2007 Annual Research Report

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

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