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Monte Carlo Simulation of a Random-Field Ising Antiferromagnet

V. V. Prudnikov·V. N. Borodikhin
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Abstract

Phase transitions in the three-dimensional diluted Ising antiferromagnet in an applied magnetic field are analyzed numerically. It is found that random magnetic field in a system with spin concentration below a certain threshold induces a crossover from second-order phase transition to first-order transition to a new phase characterized by a spin-glass ground state and metastable energy states at finite temperatures.

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V. V. Prudnikov, V. N. Borodikhin. 2005-10-03. Monte Carlo Simulation of a Random-Field Ising Antiferromagnet. https://doi.org/10.1134/1.2047794

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