Abstract:
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.
Citation:
S. V. Semkin, V. P. Smagin, “Mean-field approximation for the Potts model of a diluted magnet in the external field”, Fizika Tverdogo Tela, 58:7 (2016), 1306–1310; Phys. Solid State, 58:7 (2016), 1350–1354
\Bibitem{SemSma16}
\by S.~V.~Semkin, V.~P.~Smagin
\paper Mean-field approximation for the Potts model of a diluted magnet in the external field
\jour Fizika Tverdogo Tela
\yr 2016
\vol 58
\issue 7
\pages 1306--1310
\mathnet{http://mi.mathnet.ru/ftt9917}
\elib{https://elibrary.ru/item.asp?id=27368678}
\transl
\jour Phys. Solid State
\yr 2016
\vol 58
\issue 7
\pages 1350--1354
\crossref{https://doi.org/10.1134/S1063783416070313}
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https://www.mathnet.ru/eng/ftt9917
https://www.mathnet.ru/eng/ftt/v58/i7/p1306
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