Densities of states of disordered Cu-Ni alloys

A method for calculating the density of states of substitutional binary alloys is presented. It essentially consists of successive applications of Beeby'st-matrix formulation of the KKR theory to the single-impurity problem. This method is applied to calculate thed-densities of states of Cu-Ni alloys of various concentration. The results are in reasonable agreement with both experimental photoemission and soft-X-ray emission data and with the theoretical calculations of Stockset al. and Bansilet al. via different approaches.