Non-analytic behavior of 2D itinerant ferromagnets
Strongly Correlated Electrons
2009-11-13 v1
Abstract
We consider an ordered ferromagnet in the vicinity of a T=0 transition into a paramagnet. We show that the free energy and the transverse and longitudinal static susceptibilities contain non-analyticities which destroy a continuous second-order transition. Depending on the parameters, the transition either becomes first-order, or occurs via an intermediate spiral phase.
Cite
@article{arxiv.0804.2736,
title = {Non-analytic behavior of 2D itinerant ferromagnets},
author = {Dmitri V. Efremov and Joseph J. Betouras and Andrey V. Chubukov},
journal= {arXiv preprint arXiv:0804.2736},
year = {2009}
}
Comments
4 pages, 3 figures