Monte Carlo study of O(3) antiferromagnetic models in three dimensions
- 1 February 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 53 (5) , 2537-2545
- https://doi.org/10.1103/physrevb.53.2537
Abstract
We study three antiferromagnetic formulations of the O(3) spin model in three dimensions by means of Monte Carlo simulations: (1) a two parameter σ model with nearest- and next-nearest neighbors couplings in a cubic lattice; (2) a face-centered-cubic lattice with nearest-neighbor interaction; (3) a cubic lattice with a set of fully frustrating couplings. We discuss in all cases the vacua properties and analyze the phase transitions. Using finite-size scaling analysis we conclude that all phase transitions found are of first order. © 1996 The American Physical Society.Keywords
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