Critical behavior of two-dimensional magnetic lattice gas model
Using Monte Carlo simulations and finite-size scaling, we investigate the critical behavior of two-dimensional magnetic lattice gas at densities ρ=0.90, 0.95, 1.0. There is a ferromagnetic phase transition at each density. As expected, the critical temperature T <Subscript> c </Subscript> depends on system density ρ. Unexpectedly, there is a density dependence of the critical exponent of correlation length ν. For densities ρ=0.90,0.95,1.0, we obtain the inverse of critical exponent 1/ν=0.835(5), 0.905(5), 1.00(1) respectively. It is found that the ratios of critical exponent β/ν and γ/ν of magnetization and susceptibility are independent of density. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2011
Year of publication: |
2011
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Authors: | Li, L. S. ; Chen, W. ; Dong, W. ; Chen, X. S. |
Published in: |
The European Physical Journal B - Condensed Matter and Complex Systems. - Springer. - Vol. 80.2011, 2, p. 189-193
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Publisher: |
Springer |
Saved in:
Online Resource
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