Variational monte carlo study for superconductivity in multi-orbital systems

Hiroshi Watanabe, Tomonori Shirakawa, Seiji Yunoki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

To understand the mechanism of superconductivity in iron-based superconductors in a minimal model, we have studied the two-orbital Hubbard model in a two-dimensional square lattice with variational Monte Carlo method. We have found that the s+- wave symmetry, where the gap function changes its sign between hole and electron pockets, is favored among the various pairing symmetries. We have also discussed the mechanism of the s+- wave superconductivity.

Original languageEnglish
Article number022134
JournalJournal of Physics: Conference Series
Volume400
Issue numberPART 2
DOIs
Publication statusPublished - 2012
Externally publishedYes

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superconductivity
orbitals
symmetry
Monte Carlo method
iron
electrons

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Variational monte carlo study for superconductivity in multi-orbital systems. / Watanabe, Hiroshi; Shirakawa, Tomonori; Yunoki, Seiji.

In: Journal of Physics: Conference Series, Vol. 400, No. PART 2, 022134, 2012.

Research output: Contribution to journalArticle

Watanabe, Hiroshi ; Shirakawa, Tomonori ; Yunoki, Seiji. / Variational monte carlo study for superconductivity in multi-orbital systems. In: Journal of Physics: Conference Series. 2012 ; Vol. 400, No. PART 2.
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