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The density of states for an antiferromagnetic Ising model on a triangular lattice |
| XIA Kai1, YAO Xiao-yan1, LIU Jun-ming2 |
| 1.Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China; 2.Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China; International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China |
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Abstract The Wang-Landau algorithm is an efficient Monte Carlo approach to the density of states of a statistical mechanics system. The estimation of state density would allow the computation of thermodynamic properties of the system over the whole temperature range. We apply this sampling method to study the phase transitions in a triangular Ising model. The entropy of the lattice at zero temperature as well as other thermodynamic properties is computed. The calculated thermodynamic properties are explained in the context of the magnetic phase transition.
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Issue Date: 05 June 2007
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