Abstract
On the basis of the partition theorem and the embedding ideas of Inglesfield (1981), develop a methodology to study the electronic structure of random systems. The equations for the Green functions are confined to a finite-cluster region and the influence of the rest of the region appears as a surface potential. The herglotz properties are satisfied in the approximation. They illustrate the methodology by applying it to a binary distribution of spherically symmetric wells in a coherent jellium. This is the alloy generalisation of the impurity work of Inglesfield.
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