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Different Relaxation Modes of Epitaxial Thin Film Alloys With A Large Size Effect

Published online by Cambridge University Press:  15 February 2011

J. Thibault ,
C. Dressler  and
P. Bayle-Guillemaud
J. Thibault
Affiliation:
CEA-Grenoble / Département de Recherche Fondamentale sur la Matière Condensée/SP2M, 17 rue des Martyrs, 38054 Member of the CNRS
C. Dressler
Affiliation:
CEA-Grenoble / Département de Recherche Fondamentale sur la Matière Condensée/SP2M, 17 rue des Martyrs, 38054 GRENOBLE-FRANCE
P. Bayle-Guillemaud
Affiliation:
CEA-Grenoble / Département de Recherche Fondamentale sur la Matière Condensée/SP2M, 17 rue des Martyrs, 38054 GRENOBLE-FRANCE
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Abstract

In epitaxial layers, the mechanism of stress relaxation under consideration is in general dislocations. This paper will present experimental evidences for other modes of relaxation. which may occur in some situations especially where a strong size effect or misfit is present. In fact the stress is the driving force for intermixing, twinning, and phase transformation, which are not expected to occur in the bulk. All these experimental results have been sustained by numerical simulations that will also be presented.

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