Finite-temperature transition of the distorted kagome-lattice Heisenberg antiferromagnet
Statistical Mechanics
2012-08-27 v2
Abstract
Motivated by the recent experiment on kagome-lattice antiferromagnets, we study the zero-field ordering behavior of the antiferromagnetic classical Heisenberg model on a uniaxially distorted kagome lattice by Monte Carlo simulations. A first-order transition, which has no counterpart in the corresponding undistorted model, takes place at a very low temperature. Origin of the transition is ascribed to a cooperative proliferation of topological excitations inherent to the model.
Keywords
Cite
@article{arxiv.1201.5441,
title = {Finite-temperature transition of the distorted kagome-lattice Heisenberg antiferromagnet},
author = {Hiroshi Masuda and Tsuyoshi Okubo and Hikaru Kawamura},
journal= {arXiv preprint arXiv:1201.5441},
year = {2012}
}
Comments
To appear in Phys. Rev. Letters, with Supplemental Material