TY - JOUR
T1 - Variational monte carlo study for superconductivity in multi-orbital systems
AU - Watanabe, Hiroshi
AU - Shirakawa, Tomonori
AU - Yunoki, Seiji
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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.
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U2 - 10.1088/1742-6596/400/2/022134
DO - 10.1088/1742-6596/400/2/022134
M3 - Article
AN - SCOPUS:84873664526
SN - 1742-6588
VL - 400
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - PART 2
M1 - 022134
ER -