Abstract

The effects of both random chemical and bond-length variations on the electronic structure of zinc-blende pseudobinary alloys are treated within a realistic self-consistent effective-medium theory. Calculations for ${\mathrm{In}}_{1\ensuremath{-}x}{\mathrm{Ga}}_{x}\mathrm{As}$ indicate that the effects of structural disorder are comparable in magnitude to those of chemical disorder and together they can either enhance or diminish the total scattering in a particular energy region.

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