Glide of misfit dislocations through multi-layer heterostructures

Zou, J. and Cockayne, D. J. H. (1994) Glide of misfit dislocations through multi-layer heterostructures. Physica Status Solidi A-applied Research, 145 1: 133-143. doi:10.1002/pssa.2211450112


Author Zou, J.
Cockayne, D. J. H.
Title Glide of misfit dislocations through multi-layer heterostructures
Journal name Physica Status Solidi A-applied Research   Check publisher's open access policy
ISSN 1862-6300
1862-6319
Publication date 1994-09-16
Sub-type Article (original research)
DOI 10.1002/pssa.2211450112
Volume 145
Issue 1
Start page 133
End page 143
Total pages 11
Place of publication Weinheim, Germany
Publisher Wiley - V C H Verlag GmbH
Language eng
Abstract The formation of a misfit dislocation from a half circular dislocation loop originating at the (001) epitaxial surface in a strained layer and in a superlattice heterostructure is considered theoretically. Two steps are considered: the transformation of the dislocation loop into a straight dislocation at the interface between the strained layer and the superlattices and the glide of this interfacial dislocation through the superlattices towards the substrate. The criterion of whether such a mechanism will operate is that, for the first step, the change to the system energy should be minimised, and for the second step, a mechanism should be available to overcome the energy barrier caused by the periodic strain. Copyright © 1999–2011 John Wiley & Sons, Inc. All Rights Reserved.
Keyword Super-lattices
Superlattices
Reduction
Growth
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mechanical & Mining Engineering Publications
 
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Created: Mon, 22 Nov 2010, 09:11:26 EST by Professor Jin Zou on behalf of School of Mechanical and Mining Engineering