Magnetic moments of impurities in ferromagnetic transitional alloys

Abstract

The magnetic moment of the impurity atoms in dilute ferromagnetic transition alloys is calculated from the scattering of d electrons by spin-dependent Hartree-Fock potentials. The spin-dependent potentials are determined self-consistently by imposing Friedel's screening condition and the Hartree-Fock relation between up and down spin potentials. It turns out from this calculation that the impurity negative magnetic moments are due to the repulsion of a bound state above the Fermi level.