Facet ridge end points in crystal shapes

Details Facet ridge end points in crystal shapes Facet ridge end points in crystal shapes

1999-06-24

arxiv.org/abs/cond-mat/9906373v1

Physics

Condensed Matter

Statistical Mechanics

Contains 4 pages, 5 eps figures. Uses RevTeX

Scientific paper

10.1103/PhysRevLett.84.326

Equilibrium crystal shapes (ECS) near facet ridge end points (FRE) are generically complex. We study the body-centered solid-on-solid model on a square lattice with an enhanced uniaxial interaction range to test the stability of the so-called stochastic FRE point where the model maps exactly onto one dimensional Kardar-Parisi-Zhang type growth and the local ECS is simple. The latter is unstable. The generic ECS contains first-order ridges extending into the rounded part of the ECS, where two rough orientations coexist and first-order faceted to rough boundaries terminating in Pokrovsky-Talapov type end points.

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