Quantum Phase Transition in Frustrated Two-Dimensional Antiferromagnets
Condensed Matter
2009-10-22 v1
Abstract
We study frustrated, two-dimensional, quantum antiferromagnets in the vicinity of a quantum transition from a non-collinear, magnetically-ordered ground state to a quantum disordered phase. The general scaling properties of this transition are described. A detailed study of a particular field-theoretic model of the transition, with bosonic spin-1/2 spinon fields, is presented. Explicit universal scaling forms for a variety of observables are obtained and the results are compared with numerical data on the spin-1/2 triangular antiferromagnet. Universal properties of an alternative field-theory, with confined spinons, are also briefly noted.
Cite
@article{arxiv.cond-mat/9402006,
title = {Quantum Phase Transition in Frustrated Two-Dimensional Antiferromagnets},
author = {Andrey V. Chubukov and Subir Sachdev and T. Senthil},
journal= {arXiv preprint arXiv:cond-mat/9402006},
year = {2009}
}
Comments
51 pages, REVTEX 3.0, 5 uuencoded EPS figures appended, YCTP-xxzz