Symmetry of superconductivity in fullerides by repulsive interaction model

S. Yamazaki, Y. Kuramoto

Research output: Contribution to journalConference articlepeer-review

Abstract

A repulsive interaction model for superconductivity (SC) in fullerides is studied using a second-order perturbation theory with respect to Coulomb repulsion. With the purely repulsive interaction, Tg and E g pairs are the most stable in bcc and fcc lattices, respectively. In addition to anisotropic SC pairs, the s-wave (Ag) pair can also be formed in both lattice models. Multiple Fermi surfaces in fullerides stabilize the Ag pairs. We propose that the cooperation between Coulomb repulsion and electron-phonon interaction is responsible for the high T c

Original languageEnglish
Pages (from-to)29-32
Number of pages4
JournalPhysics Procedia
Volume45
DOIs
Publication statusPublished - 2013
Event25th International Symposium on Superconductivity, ISS 2012 - Tokyo, Japan
Duration: 2012 Dec 32012 Dec 5

Keywords

  • Coulomb repulsion
  • Fulleride
  • Multiband

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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