Impurity scattering effect on the specific heat jump in anisotropic superconductors
arXiv:cond-mat/9702165 · doi:10.1103/PhysRevB.55.11778
Abstract
The specific heat jump at a normal-superconducting phase transition in an anisotropic superconductor with nonmagnetic impurities is calculated within a weak-coupling mean field approximation. It is shown that its dependence on the impurity concentration is remarkably different for d-wave and (d+s)-wave states. This effect may be used as a test for the presence of an s-wave admixture in the cuprates.
16 pages, RevTex, 8 PostScript figures, to be published in Phys. Rev. B (May 1, 1997)