Anisotropic order parameters with s- and d-wave-like symmetry and the transition temperature in high-Tc layered superconductors

A. K. Rajagopal; Sudhanshu S. Jha

doi:10.1103/PhysRevB.54.4331

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Anisotropic order parameters with s- and d-wave-like symmetry and the transition temperature in high-Tc layered superconductors

A. K. Rajagopal, Sudhanshu S. Jha

DOI 10.1103/PhysRevB.54.4331 · Physical Review B

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Abstract

The wave-vector dependence of superconducting order parameters and the corresponding transition temperature in three-dimensional layered metals are investigated. It includes planar anisotropic s-wave-like as well as d-wave-like pairing contributions, but for simplicity only intralayer pairing of electrons has been considered for tetragonal and orthorhombic crystal structures, relevant to high-Tc materials. It is shown that for the orthorhombic case order parameters are likely to have mixed symmetry, whereas in tetragonal structures it is possible to have only planar d-wave-like symmetry with a possible correction term with an additional wave-vector dependence in the direction perpendicular to the reciprocal layer plane. © 1996 The American Physical Society.