On the Application of the Thomas-Fermi-Dirac Method to the Study of the Residual Resistance of Binary Alloys containing Foreign Atoms in Small Concentrations

Abstract

By taking the exchange interaction among electrons which was neglected in our previous work, into account, modified screened potential around the substitutional impurities of di- or trivalent metal in monovalent metal in dilute solid solution is exactly obtained from the Thomas-Fermi-Dirac type equation by numerical integration. As one of the applications of our obtained potential, we took the residual resistance due to the foreign atoms. We use the method of partial waves together with the Born approximation for the calculation of the scattering cross section and the residual resistance is calculated. The disagreement of theoretical values with experiment has been greatly improved by introducing the exchange effects