The spin exchange interaction effect on Tc equation of anisotropic impure superconductors

TL;DR

This paper investigates how spin exchange interactions influence the critical temperature in anisotropic impure superconductors, revising existing impurity models to incorporate these effects and deriving a comprehensive Tc equation.

Contribution

The study introduces a revised impurity scattering model that includes spin exchange interactions, leading to a generalized Tc equation applicable to various anisotropic impure superconductors.

Findings

Spin exchange interactions alter the sign of second-order Born scattering.

A generalized Tc equation is derived that encompasses previous models.

The new model better describes anisotropic impure superconductors.

Abstract

We study the influence of spin exchange interaction of impurity scattering on critical temperature of anisotropic impure superconductors. The model of random nonmagnetic and magnetic impurity are revised to cover the effect of spin exchange interaction . The sign of magnitude of the second-order Born scattering have been changed after consideration the spin exchange interaction effect that also effect to form of Tc equation. We can get the general Tc equation that can be described anisotropic impure superconductors well and cover all model done before.