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Kinetic Roughening in Surface Growth

Published online by Cambridge University Press:  26 February 2011

Hong Yan
Affiliation:
Dept. of Materials Science & Engineering, University of Washington, Seattle, WA 98195
David A. Kessler
Affiliation:
Randall Laboratory of Physics, The University of Michigan, Ann Arbor, MI 48109
Leonard M. Sander
Affiliation:
Randall Laboratory of Physics, The University of Michigan, Ann Arbor, MI 48109
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Abstract

In nonequilibrium surface growth processes, such as molecular beam epitaxy and chemical vapor deposition, kinetic roughening plays a significant role in determining surface morphology. The stochastic dynamics in the processes induce novel scaling in surface roughness with respect to growth time and system sizes. We present here a series of numerical simulation studies of simple theoretical models, such as ballistic deposition model and biased solid-on-solid model, to demonstrate the dynamical scaling and phase transitions in a class of surface growth problems in the context of the Kardar-Parisi-Zhang theory. Different dynamical processes, such as desorption and surface diffusion, are shown to have dramatic effects on the scaling and thus the surface structures.

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Type
Research Article
Copyright
Copyright © Materials Research Society 1992

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