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Crossover from Dimer Nucleation to Adatom Exchange During Submonolayer Epitaxy

Published online by Cambridge University Press:  21 February 2011

G.S. Bales
G.S. Bales*
Affiliation:
Lawrence Livermore National Laboratory, Livermore, CA 94550
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Abstract

The nucleation and growth of islands in the early stages of epitaxial growth is studied with kinetic Monte Carlo Simulations and self-consistent mean field rate equations. Specifically, adatom exchange and irreversible dimer formation are allowed to compete equally as the origin of two-dimensional islands. The island size distribution and number density are found to satisfy a dynamic crossover scaling form. The critical island size evolves from one to zero with increasing temperature, decreasing flux, and increasing coverage.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 399: Symposium D – Evolution of Epitaxial Structure and Morphology , 1995 , 37
Copyright
Copyright © Materials Research Society 1996

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References

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