Mean-field approximation for the potts model of a diluted magnet in the external field

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作者：
S. V. Semkin
V. P. Smagin
机构：
[1] Vladivostok State University of Economics and Service,
来源：
Physics of the Solid State | 2016年 / 58卷
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摘要：
The Potts model of a diluted magnet with an arbitrary number of states placed in the external field has been considered. Phase transitions of this model have been studied in the mean-field approximation, the dependence of the critical temperature on the external field and the density of magnetic atoms has been found, and the magnetic susceptibility has been calculated. An improved mean-field technique has been proposed, which provides more accurate account of the effects associated with nonmagnetic dilution. The influence of dilution on the first-order phase transition curve and the magnetization jump at the phase transition has been studied by this technique.
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页码：1350 / 1354
页数：4
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