Nematic and chiral orders for planar spins on triangular lattice release_rev_ad103410-77f8-4201-83a7-16aacb274505

by Jin-Hong Park, Shigeki Onoda, Naoto Nagaosa, Jung Hoon Han

Released as a article .

2008  

Abstract

We propose a variant of the antiferromagnetic XY model on the triangular lattice to study the interplay between the chiral and nematic orders in addition to the magnetic order. The model has a significant bi-quadratic interaction of the planar spins. When the bi-quadratic exchange energy dominates, a large temperature window is shown to exist over which the nematic and the chiral orders co-exist without the magnetic order, thus defining a chiral-nematic state. The phase diagram of the model and some of its critical properties are derived by means of the Monte Carlo simulation.
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Type  article
Stage   accepted
Date   2008-07-04
Version   v2
Language   en ?
arXiv  0804.4034v2
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