Abstract

The kinetics of domain growth in the uniaxial (4*1) phase of the two-dimensional ANNNI model is studied by Monte Carlo methods. An abrupt change of the anisotropic growth mode due to the effect of a wetting transition is observed. To explain this, a theory of domain growth developed for the clock model is extended to include the uniaxial (4*1) phase. In addition, it is shown that the ANNNI model with conserved density and a model with a symmetric p=4 phase studied recently belong to different dynamical universality classes.

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