Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2007-02-16
Physica A 387, 2793-2801 (2008)
Physics
Condensed Matter
Statistical Mechanics
Scientific paper
10.1016/j.physa.2008.01.021
We apply the Wang-Landau method to the study of the critical behaviour of the three dimensional Random Field Ising Model with a bimodal probability distribution. Our results show that for high values of the random field intensity the transition is first order, characterized by a double-peaked energy probability distribution at the transition temperature. On the other hand, the transition looks continuous for low values of the field intensity. In spite of the large sample to sample fluctuations observed, the double peak in the probability distribution is always present for high fields
Ceva Horacio
Hernández Laura
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