Monte Carlo renormalization-group study of domain growth in the Potts model on a triangular lattice

The kinetics of domain growth for a q=8 state Potts model on a triangular lattice is studied using the Monte Carlo renormalization-group technique. A block-spin transformation is applied to the evolving configurations of a two-dimensional Potts model with nonconserved order parameter. The growth law for the average size of domains is consistent with curvature-driven growth. A scaling form for the structure factor is obtained and compared to theory. The edge distribution function for the growth kinetics is also studied