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Mechanism of Interdiffusion in Hg1-XXxTe/CdTe Superlattices (X = Cd, Mn, AND Zn)

Published online by Cambridge University Press:  25 February 2011

J.-L. Staudenmann ,
R. D. Knox  and
J.-P. Faurie
J.-L. Staudenmann
Affiliation:
Department of Physics, Ames Laboratory-USDOE and Iowa State University, Ames, Iowa 50011J.-L. S. current address : Howard Hughes Medical Institute, Department of Biochemistry & Molecular Biophysics, Columbia University, 630 West 168th Street, New York, NY 10032
R. D. Knox
Affiliation:
Department of Physics, Ames Laboratory-USDOE and Iowa State University, Ames, Iowa 50011J.-L. S. current address : Howard Hughes Medical Institute, Department of Biochemistry & Molecular Biophysics, Columbia University, 630 West 168th Street, New York, NY 10032
J.-P. Faurie
Affiliation:
Department of Physics, University of Illinois at Chicago, P.O. Box 4348, Chicago, Illinois 60680
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Abstract

The interdiffusion mechanism in Hg(l-x)X(x)Te/CdTe superlattices where X is Cd, Mn, or Zn can be deduced from the magnitude of the interdiffusion activation energy. By comparing in-situ x-ray diffraction measurements (our work) with results from Tang and Stevenson (J. Vac. Sci. Technol. AS, 1987), it is found that anionic and cationic Frenkel pairs represent the most likely interdiffusion mechanism in Hg(l-x)X(x)Te/CdTe superlattices. This model mixes vacancies and interstitials, as well as maintaining the conduction type and the electronic mobility. It is further shown that interdiffusion sets in as soon as the growth starts.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 93: Symposium C – Materials Modification and Growth Using Ion Beams , 1987 , 193
Copyright
Copyright © Materials Research Society 1987

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References

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