Anisotropic Coarsening: Grain Shapes and Nonuniversal Persistence

Details Anisotropic Coarsening: Grain Shapes and Nonuniversal Persistence Anisotropic Coarsening: Grain Shapes and Nonuniversal Persistence

1999-03-31

arxiv.org/abs/cond-mat/9903438v1

Phys. Rev. Lett. 83, 3772 (1999)

Physics

Condensed Matter

Statistical Mechanics

4 pages (revtex), 2 eps figures

Scientific paper

10.1103/PhysRevLett.83.3772

We solve a coarsening system with small but arbitrary anisotropic surface tension and interface mobility. The resulting size-dependent growth shapes are significantly different from equilibrium microcrystallites, and have a distribution of grain sizes different from isotropic theories. As an application of our results, we show that the persistence decay exponent depends on anisotropy and hence is nonuniversal.

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