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TEM Studies of Alloy Clustering in InAlAs Strained Layers

Published online by Cambridge University Press:  26 February 2011

F. Peiro
Affiliation:
LCMM. Dept. Física Aplicada i Electrònica, Univ. Barcelona, Diagonal 645–647, 08028 Barcelona, Spain.
A. Cornet
Affiliation:
LCMM. Dept. Física Aplicada i Electrònica, Univ. Barcelona, Diagonal 645–647, 08028 Barcelona, Spain.
J. R. Morante
Affiliation:
LCMM. Dept. Física Aplicada i Electrònica, Univ. Barcelona, Diagonal 645–647, 08028 Barcelona, Spain.
S. A. Clark
Affiliation:
Dept. of Physics and Astronomy, Univ. of Wales, College of Cardiff, P.O.Box 913, Cardiff, Wales, U.K.
R. H. Williams
Affiliation:
Dept. of Physics and Astronomy, Univ. of Wales, College of Cardiff, P.O.Box 913, Cardiff, Wales, U.K.
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Abstract

Transmission electron microscopy studies have been performed to characterise InxAl1−xAS layers grown by Molecular Beam Epitaxy on (100) InP substrates. The first observations of compositional nonuniformities in strained InAlAs layers are reported. The coarse quasiperiodic structure present in each sample has been found to be dependent upon the growth parameters and the sample characteristics such as strain, thickness and x value.

Type
Research Article
Copyright
Copyright © Materials Research Society 1992

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References

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