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Coarsening Simulations of Two-Dimensional Islands on Solid Surfaces

Published online by Cambridge University Press:  10 February 2011

H. Metiu ,
T. R. Mattsson  and
G. Mills
H. Metiu
Affiliation:
Department of Chemistry and Physics and the Center for Quantized Electronic Structures, University of California, Santa Barbara CA 93106-9510, U. S. A.
T. R. Mattsson
Affiliation:
Department of Chemistry and Physics and the Center for Quantized Electronic Structures, University of California, Santa Barbara CA 93106-9510, U. S. A.
G. Mills
Affiliation:
Department of Chemistry and Physics and the Center for Quantized Electronic Structures, University of California, Santa Barbara CA 93106-9510, U. S. A.
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Abstract

Using simulations, we have studied the coarsening of an ensemble of atom-high two-dimensional islands on a square lattice. The parameters are chosen to represent metal-on-metal homogeneous epitaxy. We study first the elementary processes controlling coarsening: the evaporation of atoms from islands of various sizes and the migration of these islands due to material transport along their edges. The information obtained from these preliminary studies is used to produce a very efficient simulation of coarsening. This allows us to study how coarsening modifies the number of islands, the distribution of their sizes, and the positions of the islands on the surface.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 528: Symposia AA – Mechanisms & Principals of Epitaxial Growth in Metallic Systems , 1998 , 133
Copyright
Copyright © Materials Research Society 1998

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