Universal properties of highly frustrated quantum magnets in strong magnetic fields
Abstract
The purpose of the present paper is two-fold. On the one hand, we review some recent studies on the low-temperature strong-field thermodynamic properties of frustrated quantum spin antiferromagnets which admit the so-called localized-magnon eigenstates. One the other hand, we provide some complementary new results. We focus on the linear independence of the localized-magnon states, the estimation of their degeneracy with the help of auxiliary classical lattice-gas models and the analysis of the contribution of these states to thermodynamics.
Keywords
Cite
@article{arxiv.cond-mat/0612281,
title = {Universal properties of highly frustrated quantum magnets in strong magnetic fields},
author = {Oleg Derzhko and Johannes Richter and Andreas Honecker and Heinz-Jürgen Schmidt},
journal= {arXiv preprint arXiv:cond-mat/0612281},
year = {2007}
}
Comments
Paper based on the invited talk given by J. Richter at the International Conference "Statistical Physics 2006. Condensed Matter: Theory and Applications" dedicated to the 90th anniversary of Ilya Lifshitz (Kharkiv, 11-15 September, 2006)