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Nonclassical effects and off-diagonal couplings in a model for FeBr2

M. Pleimling·W. Selke
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Abstract

Using Monte Carlo techniques, we show that the recently experimentally observed transitionlike phenomena in the transverse spin-ordering close to the anomalies in the antiferromagnetic phase of FeBr2 (Petracic et al. [Phys. Rev. B 57, R11051 (1998)]) may result from the quantum nature of the S=1 spins and an off-diagonal exchange between axial and planar spin components.

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M. Pleimling, W. Selke. 1998-12-03. Nonclassical effects and off-diagonal couplings in a model for FeBr2. https://doi.org/10.1103/physrevb.59.8395

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