Quantum Phase Transition in the Frustrated Heisenberg Antiferromagnet
Condensed Matter
2009-10-22 v2
Abstract
Using the J_1-J_2 model, we present a description of quantum phase transition from Neel ordered to the spin-liquid state based on the modified spin wave theory. The general expression for the gap in the spectrum in the spin-liquid phase is presented.
Keywords
Cite
@article{arxiv.cond-mat/9406106,
title = {Quantum Phase Transition in the Frustrated Heisenberg Antiferromagnet},
author = {A. Dotsenko and O. Sushkov},
journal= {arXiv preprint arXiv:cond-mat/9406106},
year = {2009}
}
Comments
8 pages of REVTeX 3.0, one PostScript file appended (Eq. 15 corrected, two recent references added, + some minor changes)