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Interplay of Strain, Growth Kinetics and Surface Bonding in Growth Modes and Dislocation Generation in Strained Heteroepitaxy

Published online by Cambridge University Press:  25 February 2011

C. Snyder ,
J. Pamulapati ,
B. Orr ,
P. K. Bhattacharya  and
J. Singh
C. Snyder
Affiliation:
Department of Physics University of Michigan, Ann Arbor, Michigan 48109
J. Pamulapati
Affiliation:
Department of Electrical Engineering and Computer Science University of Michigan, Ann Arbor, Michigan 48109
B. Orr
Affiliation:
Department of Physics University of Michigan, Ann Arbor, Michigan 48109
P. K. Bhattacharya
Affiliation:
Department of Electrical Engineering and Computer Science University of Michigan, Ann Arbor, Michigan 48109
J. Singh
Affiliation:
Department of Electrical Engineering and Computer Science University of Michigan, Ann Arbor, Michigan 48109
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Abstract

In this paper we examine the role of strain and growth kinetics on the growth modes in pseudomorphic growth. Regimes below critical thickness and above critical thickness are examined. Based on atomistic modelling and in-situ RHEED and STM studies we show that a competition between surface chemical energy and strain energy is shown to lead to 3-dimensional blend mode for high strain pseudomorphy. Consequences for dislocation generation are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 202: Symposium C – Evolution of Thin Film and Surface Microstructure , 1990 , 489
Copyright
Copyright © Materials Research Society 1991

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References

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