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Fluctuations of an Atomic Ledge Bordering a Crystalline Facet

P. L. Ferrari, M. Prähofer, H. Spohn

Phys. Rev. E 69, 035102(R) (2004)

DOI: 10.1103/PhysRevLett.84.4882 Pfeil
**: cond-mat/0303162 Pfeil

Abstract: When a high symmetry facet joins the rounded part of a crystal, the step line density vanishes as sqrt(r) with r denoting the distance from the facet edge. This means that the ledge bordering the facet has a lot of space to meander as caused by thermal activation. We investigate the statistical properties of the border ledge fluctuations. In the scaling regime they turn out to be non-Gaussian and related to the edge statistics of GUE multi-matrix models.