Critical Behavior of the Spin-1/2 Baxter-Wu Model: Entropic Sampling Simulations

被引：0
|
作者：
L. N. Jorge
L. S. Ferreira
S. A. Leão
A. A. Caparica
机构：
[1] Instituto Federal do Mato Grosso - Campus Cáceres,Instituto de Física
[2] Universidade Federal de Goiás,undefined
来源：
Brazilian Journal of Physics | 2016年 / 46卷
关键词：
Entropic sampling; Baxter-Wu model; Critical exponents; Critical temperature;
D O I：
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中图分类号：
学科分类号：
摘要：
In this work, we use a refined entropic sampling technique based on the Wang-Landau method to study the spin- 1/2 Baxter-Wu model. We adopt the total magnetization as the order parameter and, as a result, do not divide the system into three sub-lattices. The static critical exponents were determined as α = 0.6697(54), β = 0.0813(67), γ = 1.1772(33), and ν = 0.6574(61). The estimate for the critical temperature was Tc = 2.26924(2). We compare the present results with those obtained from other well-established approaches, and we find a very good closeness with the exact values, besides the high precision reached for the critical temperature.
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页码：556 / 564
页数：8
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