Stability of Staggered Flux State for Anisotropic Triangular Lattice

Hisatoshi Yokoyama, S. Tamura, T. Watanabe, K. Kobayashi, M. Ogata

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

In view of pseudogap-like behavior found in organic layered superconductors κ-(BEDT-TTF)2X, we study the stability of correlated staggered flux state, which may bring about pseudogap behavior, with respect to the ordinary correlated Fermi sea as a low-lying normal state that underlies the unconventional superconductivity. To treat strong correlations, we apply a variational Monte Carlo method to a Hubbard model on a anisotropic triangular lattice, and construct a phase diagram of the normal state for large values of U/t. The results are qualitatively consistent with the features of non-doped κ-(BEDT-TTF)2 salts.

Original languageEnglish
Pages (from-to)14-17
Number of pages4
JournalPhysics Procedia
Volume58
DOIs
Publication statusPublished - 2014 Jan 1
Event26th International Symposium on Superconductivity, ISS 2013 - Tokyo, Japan
Duration: 2013 Nov 182013 Nov 20

Keywords

  • Hubbard model
  • anisotropic triangular lattice
  • frustration
  • pseudogap
  • staggered flux
  • variational Monte Carlo
  • κ-BEDT-TTF salt

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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