Anisotropic Coarsening: Grain Shapes and Nonuniversal Persistence
- 8 November 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 83 (19) , 3772-3775
- https://doi.org/10.1103/physrevlett.83.3772
Abstract
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.Keywords
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