Chiral transitions in three-dimensional magnets and higher order \epsilon-expansion
Statistical Mechanics
2009-10-31 v1
Abstract
The critical behaviour of helimagnets and stacked triangular antiferromagnets is analyzed in (4 - \epsilon) dimensions within three-loop approximation. Numerical estimates for marginal values of the order parameter dimensionality N obtained by resummation of corresponding \epsilon-expansions rule out the possibility of continuous chiral transitions in magnets with Heisenberg or planar spins.
Keywords
Cite
@article{arxiv.cond-mat/9803377,
title = {Chiral transitions in three-dimensional magnets and higher order \epsilon-expansion},
author = {S. A. Antonenko and A. I. Sokolov and K. B. Varnashev},
journal= {arXiv preprint arXiv:cond-mat/9803377},
year = {2009}
}
Comments
6 pages, TeX, no figures