Effect of weak disorder in the Fully Frustrated XY model
Disordered Systems and Neural Networks
2009-10-31 v1
Abstract
The critical behaviour of the Fully Frustrated XY model in presence of weak positional disorder is studied in a square lattice by Monte Carlo methods. The critical exponent associated to the divergence of the chiral correlation length is found to be equal to 1.7 already at very small values of disorder. Furthermore the helicity modulus jump is found larger than the universal value expected in the XY model.
Keywords
Cite
@article{arxiv.cond-mat/9810088,
title = {Effect of weak disorder in the Fully Frustrated XY model},
author = {V. Cataudella},
journal= {arXiv preprint arXiv:cond-mat/9810088},
year = {2009}
}
Comments
8 pages, 4 figures (revtex)