Nematic and chiral orders for planar spins on triangular lattice
Strongly Correlated Electrons
2009-11-13 v2
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.
Cite
@article{arxiv.0804.4034,
title = {Nematic and chiral orders for planar spins on triangular lattice},
author = {Jin-Hong Park and Shigeki Onoda and Naoto Nagaosa and Jung Hoon Han},
journal= {arXiv preprint arXiv:0804.4034},
year = {2009}
}
Comments
minor changes