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Ordering and decomposition in semiconductor alloys

Published online by Cambridge University Press:  31 January 2011

José Luís Martins
Affiliation:
Solar Energy Research Institute, Golden, Colorado 80401
Alex Zunger
Affiliation:
Solar Energy Research Institute, Golden, Colorado 80401
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Abstract

The stability of ordered semiconductor alloys has been studied, using total energy pseudopotential calculations. The ordered alloys are found to be stabilized with respect to disordered alloys via reduction of the internal strain and by chemical interactions. The Si–C and Si–Ge systems are used as illustrations, finding that ordered Six Ge1−x should be a metastable alloy, in agreement with experimental observations.

Type
Materials Communications
Copyright
Copyright © Materials Research Society 1986

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