Magnetocaloric effect in two-dimensional spin-1/2 antiferromagnets
Strongly Correlated Electrons
2007-05-23 v1 Statistical Mechanics
Abstract
The magnetocaloric effect is studied at the transition to saturation in the antiferromagnetic spin-1/2 Heisenberg model on the simplest two-dimensional lattices, namely the square and the triangular lattice. Numerical results are presented for the entropy which are consistent with identical universal properties. However, the absolute values of the entropy are bigger on the geometrically frustrated triangular lattice than on the non-frustrated square lattice, indicating that frustration improves the magnetocaloric properties.
Cite
@article{arxiv.cond-mat/0508123,
title = {Magnetocaloric effect in two-dimensional spin-1/2 antiferromagnets},
author = {A. Honecker and S. Wessel},
journal= {arXiv preprint arXiv:cond-mat/0508123},
year = {2007}
}
Comments
2 pages, 2 figures included, to appear in Physica B (proceedings of SCES'05)