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Anomalies in the antiferromagnetic phase of the metamagnet FeBr 2

1997; American Physical Society; Volume: 56; Issue: 14 Linguagem: Inglês

10.1103/physrevb.56.8855

1095-3795

Michel Pleimling, W. Selke,

High-pressure geophysics and materials

Motivated by recent experiments on the metamagnet FeBr${}_{2}$, anomalies of the magnetization and the specific heat in the antiferromagnetic phase of related spin models are studied systematically using Monte Carlo simulations. In particular, the dependence of the anomalous behavior on competing intralayer interactions, the spin value, and the Ising-like anisotropy of the Hamiltonian are investigated. Results are compared to experimental findings on FeBr${}_{2}$.