Monte Carlo Simulations of the Ashkin-Teller Model
L. Dębski
Institute of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
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Monte Carlo simulations are used to analyse the behaviour of the extended Ashkin-Teller model in two (2D) and three (3D) dimensions from the ratio of the square of the second moment of the order parameter to its fourth moment. The critical surface in three dimensional parameter space is calculated in regions where the Ising transitions are expected both for the ferro-and antiferromagnetic regions.
DOI: 10.12693/APhysPolA.97.859
PACS numbers: 75.10.Hk, 75.40.Mg, 64.70.-p