Valence Band Offset and Electronic Structures of Zinc-Compound Strained Superlattices

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  • Valence Band Offset and Electronic Stru

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Abstract

Electronic structures and band offsets of Zinc-compound (001) strained superlattices are calculated by the first-principles pseudopotential method. It is shown that strained superlattices become quantum well systems of good quality for the states around the fundamental gap. With varying the strain surroundings, band offset drastically changes due to the energy-level shift by strain and charge transfer at the interface, mechanism of which is analyzed in order to predict the general feature of the variation of offset in strained superlattices.

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