Soluble kagome Ising model in a magnetic field
Statistical Mechanics
2007-05-23 v2
Abstract
An Ising model on the kagome lattice with super-exchange interactions is solved exactly under the presence of a nonzero external magnetic field. The model generalizes the super-exchange model introduced by Fisher in 1960 and is analyzed in light of a free-fermion model. We deduce the critical condition and present detailed analyses of its thermodynamic and magnetic properties. The system is found to exhibit a second-order transition with logarithmic singularities at criticality.
Keywords
Cite
@article{arxiv.cond-mat/0409083,
title = {Soluble kagome Ising model in a magnetic field},
author = {W. T. Lu and F. Y. Wu},
journal= {arXiv preprint arXiv:cond-mat/0409083},
year = {2007}
}
Comments
8 pages, 8 figures, references added