Dynamical crossover in the clock model with a conserved order parameter

Puri, Sanjay ; Ahluwalia, Rajeev ; Bray, Alan J. (1997) Dynamical crossover in the clock model with a conserved order parameter Physical Review E - Statistical, Nonlinear and Soft Matter Physics, 55 (3). pp. 2345-2352. ISSN 1539-3755

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Official URL: http://pre.aps.org/abstract/PRE/v55/i3/p2345_1

Related URL: http://dx.doi.org/10.1103/PhysRevE.55.2345

Abstract

We present comprehensive numerical results for phase ordering dynamics in the clock model with a conserved order parameter. Our study is based on a dynamical model for a coarse-grained complex order parameter. We find that there is a dynamical crossover from vortex-driven growth at early times to interface-driven growth at later times. The crossover time is later for higher values of the ground-state degeneracy of the clock model.

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