Kinetic Roughening in Surfaces of Crystals Growing on Disordered Substrates

Preprint

16 September 1992

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9209019

Abstract

Substrate disorder effects on the scaling properties of growing crystalline surfaces in solidification or epitaxial deposition processes are investigated. Within the harmonic approach there is a phase transition into a low-temperature (low-noise) superrough phase with a continuously varying dynamic exponent z>2 and a non-linear response. In the presence of the KPZ nonlinearity the disorder causes the lattice efects to decay on large scales with an intermediate crossover behavior. The mobility of the rough surface hes a complex dependence on the temperature and the other physical parameters.

Keywords

DISORDERED SUBSTRATES
SUBSTRATES SUBSTRATE
SCALING PROPERTIES
KINETIC ROUGHENING
DISORDER EFFECTS
CRYSTALS GROWING
PHASE TRANSITION
ROUGH SURFACE
TEMPERATURE
MOBILITY

All Related Versions

Version 1, 1992-09-16, ArXiv
Published version: Physical Review Letters, 69 (12), 1773.

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