Possible chiral phase transition in two-dimensional solid $^3$He
Condensed Matter
2009-10-30 v1
Abstract
We study a spin system with two- and four-spin exchange interactions on the triangular lattice, which is a possible model for the nuclear magnetism of solid He layers. It is found that a novel spin structure with scalar chiral order appears if the four-spin interaction is dominant. Ground-state properties are studied using the spin-wave approximation. A phase transition concerning the scalar chirality occurs at a finite temperature, even though the dimensionality of the system is two and the interaction has isotropic spin symmetry. Critical properties of this transition are studied with Monte Carlo simulations in the classical limit.
Cite
@article{arxiv.cond-mat/9708141,
title = {Possible chiral phase transition in two-dimensional solid $^3$He},
author = {Tsutomu Momoi and Kenn Kubo and Koji Niki},
journal= {arXiv preprint arXiv:cond-mat/9708141},
year = {2009}
}
Comments
4 pages, Revtex, 4 figures, to appear in Phys.Rev.Lett