Short-time critical dynamics of the Baxter-Wu model
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2003
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We study the early time behavior of the Baxter-Wu model, an Ising model with three-spin interactions on a triangular lattice. Our estimates for the dynamic exponent z are compatible with results recently obtained for two models which belong to the same universality class of the Baxter-Wu model: the two-dimensional four-state Potts model and the Ising model with three-spin interactions in one direction. However, our estimates for the dynamic exponent theta of the Baxter-Wu model are completely different from the values obtained for those models. This discrepancy could be related to the absence of a marginal operator in the Baxter-Wu model.
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ARASHIRO, E. ; FELÍCIO, J. R. D. de. Short-time critical dynamics of the Baxter-Wu model. Physical Review E - Statistical Physics, Plasmas, Fluids and Related Interdisciplinary Topics, v. 67, n. 4, p. 04612, abr. 2003. Disponível em: <http://pre.aps.org/pdf/PRE/v67/i4/e046123>. Acesso em: 29 nov. 2012.