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Ordering in Compound Semiconductors: The Role of Transmission Electron Microscopy

Published online by Cambridge University Press:  10 February 2011

D. S. Su ,
A. T. Tham ,
P. Schubert-Bischoff ,
I. Hähnert ,
W. Neumann ,
M. Giersig  and
E. Zeitler
D. S. Su
Affiliation:
Institut fur Physik, Humboldt Universitäit zu Berlin, Invalidenstrasse 110, D-10115 Berlin
A. T. Tham
Affiliation:
Institut fur Physik, Humboldt Universitäit zu Berlin, Invalidenstrasse 110, D-10115 Berlin
P. Schubert-Bischoff
Affiliation:
Hahn-Meitner-lnstitut GmbH, Glienickerstrasse 100, D- 14109 Berlin
I. Hähnert
Affiliation:
Institut fur Physik, Humboldt Universitäit zu Berlin, Invalidenstrasse 110, D-10115 Berlin
W. Neumann
Affiliation:
Institut fur Physik, Humboldt Universitäit zu Berlin, Invalidenstrasse 110, D-10115 Berlin
M. Giersig
Affiliation:
Hahn-Meitner-lnstitut GmbH, Glienickerstrasse 100, D- 14109 Berlin
E. Zeitler
Affiliation:
Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D- 14195 Berlin
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Abstract

In this paper, the ordering of ternary semiconductor compounds is briefly reviewed by means of a coordination polyhedron model. Long-range ordering of chalcopyrite and CuAu-type structures can be represented as an array of repeating A2B2 tetrahedra. A CuAu-type ordered phase in a chalcopyrite AIBIIICVI2 compound is surrounded by an A3B+ AB3 boundary, whereas a CuPt-type ordered phase in a zinc-blende (A, B)IIICV compound is surrounded mainly by A2B2 type tetrahedra and thus restricted in size. Following the description of the ordered structure model, the detection of the asymmetry in ordering directions in (A, B)IIICV compounds is discussed. Some examples that employ transmission electron microscopy are presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 523: Symposium U – Electron Microscopy of Semiconducting Materials & ULSI Devices , 1998 , 241
Copyright
Copyright © Materials Research Society 1998

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References

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