Transitions in three-dimensional XY magnets with two chiral order parameters |
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Authors: | A. O. Sorokin A. V. Syromyatnikov |
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Affiliation: | 1.Petersburg Nuclear Physics Institute,St. Petersburg,Russia |
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Abstract: | Two models of classic XY antiferromagnets in three dimensions are studied by Monte Carlo simulation: the model on a simple cubic lattice with two extra intralayer exchanges and the model on a stackedtriangular lattice with an extra interlayer exchange. In suggested models, the order parameters are magnetization and two chiral parameters. A transition corresponds to breaking ℤ2 ⊗ ℤ2 ⊗ SO(2) symmetry. A distinct first order transition is found in both models. |
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