Superconducting symmetry of three-dimensional $t$-$J$ model on simple cubic lattice

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dc.creatorHuang, Huai-Xiang
dc.creatorLi, YouQuan
dc.date2009-02-09
dc.date.accessioned2026-07-07T12:39:24Z
dc.date.available2026-07-07T12:39:24Z
dc.descriptionMotivated by the finding of nearly isotropic superconductivity in $\mathrm{(Ba,K)Fe_2As_2}$, we use renormalized mean field theory to investigated the $t$-$J$ model on three-dimensional simple cubic lattice. A tunable anisotropic parameter is introduced to dictate the coupling on $z$ direction. The symmetry of the superconducting order is studied in detail. Calculation shows that for the isotropic case, pairing parameters on the three perpendicular directions have ${2/3}π$ phase shift to each other. However, when the interaction on $z$ direction is suppressed, the corresponding amplitude of the pairing parameter decreases rapidly, furthermore, two-dimensional d-wave state pairing is favored when the anisotropic rate less than 0.75.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0902.1362
dc.identifierhttp://arxiv.org/abs/0902.1362
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/219098
dc.subjectSuperconductivity
dc.titleSuperconducting symmetry of three-dimensional $t$-$J$ model on simple cubic lattice
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