Yang-Lee Zeros of the Triangular Ising Antiferromagnets

Details Yang-Lee Zeros of the Triangular Ising Antiferromagnets Yang-Lee Zeros of the Triangular Ising Antiferromagnets

2009-10-17

arxiv.org/abs/0910.3255v1

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

Using both the exact enumeration method (microcanonical transfer matrix) for a small system (L = 9) and the Wang-Landau Monte Carlo algorithm for large systems to L = 30, we obtain the exact and approximate densities of states g(M,E), as a function of magnetization M and exchange energy E, for the triangular-lattice Ising model. Based on the density of states g(M,E), we investigate the phase transition properties of Yang-Lee zeros for the triangular Ising antiferromagnets and obtain the magnetic exponents at various temperatures.

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