Physics of the Solid State
Phase transitions in the diluted 2D three-state Potts model on a square lattice
Murtazaev A. K.1, Babaev A. B.1,2, Ataeva G. Ya.1, Babaev M. A.3
1Amirkhanov Institute of Physics, Dagestan Scientific Center, Russian Academy of Sciences, Makhachkala, Russia
2Dagestan Federal Research Center, Russian Academy of Sciences, Makhachkala, Russia
3Dagestan State University, Makhachkala, Dagestan Republic, Russia
2Dagestan Federal Research Center, Russian Academy of Sciences, Makhachkala, Russia
3Dagestan State University, Makhachkala, Dagestan Republic, Russia
Email: b_albert78@mail.ru
The computer simulation method was used to study phase transitions in a two-dimensional site-diluted 3-state Potts model. Systems with linear dimensions Lx L=N, L=10/160 at a spin concentration p=1.00, 0.80 are considered. The numerical data obtained indicate that in a pure 3-state Potts model on a square lattice, a phase transition of the second order is observed in accordance with the theory. The introduction of disorder in the form of non-magnetic impurities (p=0.80) in the 3-state Potts model preserves the phase transition of the second order. Keywords: Potts model, Monte Carlo method, thermodynamic parameters, disorder.
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