Chiral exponents in frustrated spin models with noncollinear ordering
Statistical Mechanics
2009-11-07 v1 High Energy Physics - Lattice
High Energy Physics - Theory
Abstract
We compute the chiral critical exponents for the chiral transition in frustrated two- and three-component spin systems with noncollinear order, such as stacked triangular antiferromagnets (STA). For this purpose, we calculate and analyze the six-loop field-theoretical expansion of the renormalization-group function associated with the chiral operator. The results are in satisfactory agreement with those obtained in the recent experiment on the XY STA CsMnBr_3 reported by V. P. Plakhty et al., Phys. Rev. Lett. 85, 3942 (2000), providing further support for the continuous nature of the chiral transition.
Cite
@article{arxiv.cond-mat/0106525,
title = {Chiral exponents in frustrated spin models with noncollinear ordering},
author = {Andrea Pelissetto and Paolo Rossi and Ettore Vicari},
journal= {arXiv preprint arXiv:cond-mat/0106525},
year = {2009}
}
Comments
4 pages