Slow dynamics of stepped surfaces

Details Slow dynamics of stepped surfaces Slow dynamics of stepped surfaces

1999-12-10

arxiv.org/abs/cond-mat/9912188v1

Bulgarian Chemical Communications, vol.29 (3/4), 398 (1997)

Physics

Condensed Matter

Statistical Mechanics

21 pages, 11 BMP figures

Scientific paper

Two kinds of configurations involving steps on surfaces are reviewed. The first one results from an initially planar vicinal surface, i.e. slightly deviating from a high-symmetry (001) or (111) orientation. In some cases, these surfaces separate into domains of different orientations by a mechanism which is very similar to phase separation in mixtures. The domain size initially increases with time and goes to a finite limit, whose value is related to elastic phenomena. The second kind of configurations results from making grooves in a high-symmetry surface. The surface smoothes out and takes an intermediate shape with facet-like hills and valleys, which are the source of a controversy which we try to clarify as much as possible.

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