Abstract
The electronic structure of (001) superlattices is studied for many combinations of values of k,l,m and n. We have charted the regions of indirect gap and direct gap respectively by studying energy eigenvalues, especially band-edge levels, and also the spatial dependence of the local amplitude of some representative states, in order to obtain information on the confinement problems. The calculations are based on an empirical tight-binding model and on the surface Green-function-matching method.
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