Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2001-10-29
Physical Review Letters 87, 236103 (2001)
Physics
Condensed Matter
Statistical Mechanics
4 double-column pages, Revtex4, no figures; to appear in Physical Review Letters
Scientific paper
10.1103/PhysRevLett.87.236103
We propose a unified moving boundary problem for surface growth by electrochemical and chemical vapor deposition, which is derived from constitutive equations into which stochastic forces are incorporated. We compute the coefficients in the interface equation of motion as functions of phenomenological parameters. The equation features the Kardar-Parisi-Zhang (KPZ) non-linearity and instabilities which, depending on surface kinetics, can hinder the asymptotic KPZ scaling. Our results account for the universality and the experimental scarcity of KPZ scaling in the growth processes considered.
Castro Mario
Cuerno Rodolfo
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