Theory of Quantum Hall Nematics
Mesoscale and Nanoscale Physics
2009-11-07 v1 Statistical Mechanics
Strongly Correlated Electrons
Abstract
Transport measurements on two dimensional electron systems in moderate magnetic fields suggest the existence of a spontaneously orientationally-ordered, compressible liquid state. We develop and analyze a microscopic theory of such a ``quantum Hall nematic'' (QHN) phase, predict the existence of a novel, highly anisotropic density-director mode, find that the T=0 long-range orientational order is unstable to weak disorder, and compute the tunneling into such a strongly correlated state. This microscopic approach is supported and complemented by a hydrodynamic model of the QHN, which, in the dissipationless limit, reproduces the modes of the microscopic model.
Keywords
Cite
@article{arxiv.cond-mat/0110083,
title = {Theory of Quantum Hall Nematics},
author = {Leo Radzihovsky and Alan T. Dorsey},
journal= {arXiv preprint arXiv:cond-mat/0110083},
year = {2009}
}
Comments
4 pages, RevTeX, submitted to PRL