Magnetization plateaux in a generalised ladder model
Condensed Matter
2007-05-23 v1
Abstract
A spin-1/2 antiferromagnetic(AFM) generalised ladder model is constructed which consists of four-spin plaquettes, coupled through weaker exchange interactions, to two-spin rungs. In an extended parameter regime, the exact ground state of the ladder is determined. In this state, the four-spin plaquettes and the rungs are in their ground state spin configurations. In the presence of an external magnetic field, the magnetization/site has a plateau structure as a function of the magnetic field.
Cite
@article{arxiv.cond-mat/0205364,
title = {Magnetization plateaux in a generalised ladder model},
author = {Emily Chattopadhyay and Indrani Bose},
journal= {arXiv preprint arXiv:cond-mat/0205364},
year = {2007}
}
Comments
latex, 10 pages, To be published as Proceedings of StatPhys - Kolkata IV in Physica A