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Atomistic description of the electronic structure of InGaAs alloys and InAs/GaAs superlattices

Kwiseon Kim, P. R. C. Kent, Alex Zunger, and C. B. Geller

Physical Review B 66 045208 (2002)

Adobe PDF [407KB]

We show how an empirical pseudopotential approach, fitted to bulk and interfacial reference systems, provides a unified description of the electronic structure of random alloys (bulk and epitaxial), superlattices, and related complex systems. We predict the composition and superlattice-period dependence of the band offsets and interband transitions of InAs/GaAs systems on InP and GaAs substrates.

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Comments, questions? Contact Paul Kent.Last updated Wednesday 28 January 2004.