Theory of electronic structure of non-dilute transition metal alloys : NiCu

The density of states for the NiCu alloys system has been calculated as a function of concentration by the supercell method. This method takes into account inter-site interactions in contrast with current effective medium or single site theories. We show that the method is practical for the study of disordered systems. Comparison is made with previous work as well as with photoemission data.