Superconducting alloys containing paramagnetic impurities with local states within the gap. Effect of a magnetic field

摘要: The effect of a uniform magnetic field on superconductor containing impurities has been investigated by treating the scattering conduction electrons exactly (within Shiba-Rusinov model). Our generalized equations defining single-particle Green function reduce to earlier known results in appropriate limits. As an application our we have calculated transition temperature T c. For fixed values parameter ɛ0 (the normalized position bound state within BCS gap), p field), and α (=〈S z 2/S2), detailed dependence T c impurity concentration ovc shown. for ɛ0, ovc, also are significantly different from results.