Nematic Phase of the Two-Dimensional Electron Gas in a Magnetic Field

Eduardo Fradkin, Steven A. Kivelson, Efstratios Manousakis, Kwangsik Nho

Research output: Contribution to journalArticle

101 Scopus citations

Abstract

The two-dimensional electron gas (2DEG) in moderate magnetic fields in ultraclean AlAs-GaAs heterojunctions exhibits transport anomalies suggestive of a compressible anisotropic metallic state. Using scaling arguments and Monte Carlo simulations, we develop an order parameter theory of an electron nematic phase. The observed temperature dependence of the resistivity anisotropy behaves like the orientational order parameter if the transition to the nematic state occurs at a finite temperature Tc∼65mK, and is slightly rounded by a small background microscopic anisotropy. We propose a light scattering experiment to measure the critical susceptibility.

Original languageEnglish (US)
Pages (from-to)1982-1985
Number of pages4
JournalPhysical Review Letters
Volume84
Issue number9
DOIs
StatePublished - Feb 28 2000
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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