Stability of the d-wave pairing with respect to the intersite Coulomb repulsion in cuprate superconductors

[摘要] Within the spin-fermion model for cuprate superconductors, the influence of the intersite Coulomb interactions V-2 and V'(2) between holes located at the next-nearest-neighbor oxygen ions of CuO2 plane on the implementation of the d(x)(2)-y(2)-wave pairing is studied. It is shown that d-wave pairing can be suppressed only for unphysically large values of V-2 and V'(2).

[发布日期] 2017-10-15

[效力级别]  Proceedings Paper

[关键词] Cuprate superconductors;Spin-fermion model;Intersite Coulomb repulsion