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2010 Fiscal Year Final Research Report

Possible enhancement of transition temperature due to magnetic impurities with internal structure in a superconductor

Research Project

  • PDF
Project/Area Number 20540353
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

KOGA Mikito  静岡大学, 教育学部, 准教授 (40324321)

Co-Investigator(Kenkyū-buntansha) MATSUMOTO Masashige  静岡大学, 理学部, 教授 (20281058)
KUSUNOSE Hiroaki  愛媛大学, 大学院・理工学研究科, 准教授 (00292201)
Project Period (FY) 2008 – 2010
Keywords物性理論 / 強相関系 / 超伝導
Research Abstract

Superconductivity is one of central issues in progress of science technology. We investigate additional degrees of freedom such as orbital that differ from magnetic degrees of freedom, which are relevant to stability conditions of higher temperature superconductors. In a multiband case, for increase of the transition temperature of superconductivity, we focus on(1) relative signs of order parameters in superconducting bands and(2) multipole(orbital moment) types of magnetic impurities coupled to band electrons. This result gives a new concept for the study of superconductivity and magnetism.

  • Research Products

    (5 results)

All 2011 2010

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (3 results)

  • [Journal Article] Effects of Impurities with Singlet-Triplet Configuration on Multib and Superconductors2011

    • Author(s)
      古賀幹人、松本正茂、楠瀬博明
    • Journal Title

      Journal of Physical Society of Japan

      Volume: Vol.80 Pages: 064708/1-10

    • Peer Reviewed
  • [Journal Article] Effect of Impurities with Internal Structure on Multib and Superconductors. Possible Enhancement of Transition Temperature2010

    • Author(s)
      古賀幹人、松本正茂、楠瀬博明
    • Journal Title

      Journal of Physical Society of Japan

      Volume: Vol.79 Pages: 094704/1-14

    • Peer Reviewed
  • [Presentation] 多バンドs波超伝導体中の磁性不純物結晶場一重項.三重項の効果2011

    • Author(s)
      古賀幹人
    • Organizer
      日本物理学会
    • Place of Presentation
      新潟大学(新潟市)
    • Year and Date
      2011-03-26
  • [Presentation] 多バンド超伝導体の転移温度増大に寄与する磁性不純物結晶場一重項.三重項の効果2010

    • Author(s)
      古賀幹人
    • Organizer
      日本物理学会
    • Place of Presentation
      大阪府立大学(堺市)
    • Year and Date
      2010-09-23
  • [Presentation] Effect of impurities with singlet-triplet configuration for enhancement of transition temperature in multib and superconductors2010

    • Author(s)
      古賀幹人
    • Organizer
      Interanational Conference on Heavy Electrons
    • Place of Presentation
      首都大学東京(八王子市)
    • Year and Date
      2010-09-18

URL: 

Published: 2013-07-31  

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