# Kinetic roughening in surfaces of crystals growing on disordered substrates.

@article{Tsai1992KineticRI, title={Kinetic roughening in surfaces of crystals growing on disordered substrates.}, author={Tsai and Shapir}, journal={Physical review letters}, year={1992}, volume={69 12}, pages={ 1773-1776 } }

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 nonlinear response. In the presence of the Kardar-Parisi-Zhang nonlinearity the disorder causes the lattice effects to decay on large scales with an intermediate crossover behavior…

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