Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/59430
Type: Artigo de periódico
Title: Phase diagram and critical behavior of the spin-1 Baxter-Wu model with a crystal field
Author: Costa, MLM
Xavier, JC
Plascak, JA
Abstract: The phase diagram and critical behavior of the spin-1 Baxter-Wu model with a crystal field in two dimensions is explored by renormalization group, conventional finite-size scaling, and conformal invariance techniques. We found that the phase diagram of this model is qualitatively the same as that of the dilute 4-states Potts model, presenting a multicritical point for a finite value of the crystal field, in disagreement with previous work based on finite-size calculations. However, our results indicate that the critical exponents vary continuously along the second-order transition line, differently from the expected behavior of the dilute 4-states Potts model.
Country: EUA
Editor: American Physical Soc
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.69.104103
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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