Magnetization plateaux in the classical Shastry-Sutherland lattice
Strongly Correlated Electrons
2009-03-12 v1
Abstract
We investigated the classical Shastry-Sutherland lattice under an external magnetic field in order to understand the recently discovered magnetization plateaux in the rare-earth tetraborides compounds RB. A detailed study of the role of thermal fluctuations was carried out by mean of classical spin waves theory and Monte-Carlo simulations. Magnetization quasi-plateaux were observed at 1/3 of the saturation magnetization at non zero temperature. We showed that the existence of these quasi-plateaux is due to an entropic selection of a particular collinear state. We also obtained a phase diagram that shows the domains of existence of different spin configurations in the magnetic field versus temperature plane.
Cite
@article{arxiv.0903.1985,
title = {Magnetization plateaux in the classical Shastry-Sutherland lattice},
author = {M. Moliner and D. C. Cabra and A. Honecker and P. Pujol and F. Stauffer},
journal= {arXiv preprint arXiv:0903.1985},
year = {2009}
}
Comments
4 pages, proceedings of HFM2008