Critical behavior of the three-dimensional compressible Ising antiferroma gnet at constant volume: a Monte Carlo study

Abstract

Extensive Monte Carlo simulations in the semi-grand-canonical ensemble are used to study the critical behavior of a three-dimensional compressible Ising model with antiferromagnetic interactions under constant volume conditions. Elastic forces between spins are introduced by the Stillinger-Weber potential and energy parameters are chosen in such a way that antiparallel spin ordering is favored, analogous to the antiferromagnetic coupling in the rigid Ising Hamiltonian. All the quantities analyzed strongly indicate that the system remains in the universality class of the standard (rigid) three-dimensional Ising model, in contrast with theoretical predictions.

References in corpus (3)

• Critical Phenomena and Renormalization-Group Theory
• Ising Universality in Three Dimensions: A Monte Carlo Study
• Critical exponents for 3D O(n)-symmetric model with n > 3

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