論文

査読有り
2009年

Spin singlet and triplet superconductivity in the extended Hubbard model with anisotropic exchange interaction

25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 5
  • Yoshiki Hori
  • ,
  • Akira Goto

150
開始ページ
052072
終了ページ
記述言語
英語
掲載種別
研究論文(国際会議プロシーディングス)
DOI
10.1088/1742-6596/150/5/052072
出版者・発行元
IOP PUBLISHING LTD

We study the effect of the nearest neighbor anisotropic exchange interaction on superconductivity in extended Hubbard model in a square lattice. This Hamiltonian is one of a base model to describe various effects on triplet superconductors, e.g. Sr2RuO4, because the ferromagnetic exchange is advantagous for triplet pairing. Within a one-band mean field approximation, we calculate the critical temperatures of spin singlet and triplet superconductivity. We obtain a phase diagram in the longitudinal vs transverse exchange couplings and we show how the stable pairing state is controlled by the anisotropy of the exchange interaction.

リンク情報
DOI
https://doi.org/10.1088/1742-6596/150/5/052072
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000289688600072&DestApp=WOS_CPL
ID情報
  • DOI : 10.1088/1742-6596/150/5/052072
  • ISSN : 1742-6588
  • Web of Science ID : WOS:000289688600072

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