Kinetic roughening in surfaces of crystals growing on disordered substrates.

  title={Kinetic roughening in surfaces of crystals growing on disordered substrates.},
  author={Tsai and Shapir},
  journal={Physical review letters},
  volume={69 12},
  • Tsai, Shapir
  • Published 16 September 1992
  • Materials Science, Physics, Medicine
  • Physical review letters
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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