Phys. Rev. Lett. 83, 3772–3775 (1999)Anisotropic Coarsening: Grain Shapes and Nonuniversal PersistenceReceived 31 March 1999; published in the issue dated 8 November 1999 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. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.3772
DOI:
10.1103/PhysRevLett.83.3772
PACS:
05.70.Ln, 64.60.Cn, 81.30.Hd
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