Fluctuations of steps on crystal surfaces

Details Fluctuations of steps on crystal surfaces Fluctuations of steps on crystal surfaces

2001-08-24

arxiv.org/abs/cond-mat/0108391v1

Physics

Condensed Matter

Statistical Mechanics

4 pages, 2 eps figures

Scientific paper

10.1016/S0010-4655(02)00257-6

Fluctuations of isolated and pairs of ascending steps of monoatomic height are studied in the framework of SOS models, using mainly Monte Carlo techniques. Below the roughening transistion of the surface, the profiles of long steps show the same scaling features for terrace and surface diffusion. For a pair of short steps, their separation distance is found to grow as $t^{1/3}$ at late stages. Above roughening, simulational data on surface diffusion agree well with the classical continuum theory of Mullins.

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