Critical Hysteresis in Random Field XY and Heisenberg Models
Disordered Systems and Neural Networks
2015-05-19 v2 Statistical Mechanics
Abstract
We study zero-temperature hysteresis in random-field XY and Heisenberg models in the zero-frequency limit of a cyclic driving field. We consider three distributions of the random field and present exact solutions in the mean field limit. The results show a strong effect of the form of disorder on critical hysteresis as well as the shape of hysteresis loops. A discrepancy with an earlier study based on the renormalization group is resolved.
Keywords
Cite
@article{arxiv.1007.4265,
title = {Critical Hysteresis in Random Field XY and Heisenberg Models},
author = {Prabodh Shukla and R S Kharwanlang},
journal= {arXiv preprint arXiv:1007.4265},
year = {2015}
}
Comments
10 pages, 6 figures; this is published version (added some text and references)