Influence of the Coulomb correlation in partially filledd-bands on the electronic spectra of disordered alloys

The XVV Auger spectra of Cu−Ni, Zr−Nb, Nb−Mo and Ta−W alloys at different concentrations have been computed by using CPA densities of states and a theory which takes into account the effect of the Coulomb correlation between the two Auger holes in partially filledd-bands. The renormalized one-particle spectra and the Auger spectra are presented as a function of the Coulomb repulsion.