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arXiv · 0805.2658

Collinear ordering of easy-axis triangular lattice antiferromagnets

Arnab Sen·Fa Wang·Kedar Damle
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Abstract

Antiferromagnetically coupled moments on the frustrated triangular lattice typically order in a coplanar state at low temperature. Here, we demonstrate that the presence of not-very-large easy axis single ion anisotropy leads to an interesting orientationally ordered collinear state in triangular lattice antiferromagnets with moments $S \ge 3/2$. This ordered state breaks the symmetry of $π/3$ rotations about a lattice site, while leaving intact the translational symmetry of the lattice.

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Arnab Sen, Fa Wang, Kedar Damle. 2008-05-17. Collinear ordering of easy-axis triangular lattice antiferromagnets. https://arxiv.org/abs/0805.2658

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