Surface, interface, and bulk electronic states of bimetallic superlattices: The case of the Mo/Ta superlattice

This paper presents a theoretical study of the bulk, surface, and interface electronic states of bimetallic superlattices; especially the Mo/Ta superlattice. The calculation of the local density of states at the interface of this particular superlattice allows an examination of the interface phenomena as a function of the coupling parameter at the interface. The superlattice surface study shows that localized surface states may exist in the minigaps.