Monte Carlo study of the Spin-1 Baxter-Wu model in a crystal field

被引:2
|
作者
Costa, M. L. M. [1 ]
Plascak, J. A. [2 ,3 ,4 ]
机构
[1] Fed Univ Para, Inst Tecnol ITEC, Campus Univ Guama,Rua Augusto Correa 1, BR-66075110 Belem, Para, Brazil
[2] Univ Fed Paraiba, Ctr ciencias Exatas & Nat, Dept Fis, Campus 1,Cidade Univ, BR-58051970 Joao Pessoa, Paraiba, Brazil
[3] Univ Fed Minas Gerais, Dept Fis, CP 702, BR-30123970 Belo Horizonte, MG, Brazil
[4] Univ Georgia, Ctr Simulat Phys, Athens, GA 30602 USA
关键词
D O I
10.1088/1742-6596/686/1/012011
中图分类号
O59 [应用物理学];
学科分类号
摘要
The two-dimensional Baxter-Wu model with spin-1, in the presence of a crystal field, is studied by using Monte Carlo simulations. The standard single-spin-flip Metropolis algorithm is used to generate the configurations from which the order parameter, specific heat and magnetic susceptibility are measured. Single histogram techniques are used to get the results close to the phase transitions. The finite-size scaling procedure is employed in order to obtain the critical behavior. The simulations have shown that the critical exponents are different from the spin-1/2 case and are crystal field dependent.
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页数:8
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