TY - JOUR
T1 - Nematic Phase of the Two-Dimensional Electron Gas in a Magnetic Field
AU - Fradkin, Eduardo
AU - Kivelson, Steven A.
AU - Manousakis, Efstratios
AU - Nho, Kwangsik
PY - 2000/2/28
Y1 - 2000/2/28
N2 - 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 T∼ ∼ 65 mK, and is slightly rounded by a small background microscopic anisotropy. We propose a light scattering experiment to measure the critical susceptibility.
AB - 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 T∼ ∼ 65 mK, and is slightly rounded by a small background microscopic anisotropy. We propose a light scattering experiment to measure the critical susceptibility.
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U2 - 10.1103/PhysRevLett.84.1982
DO - 10.1103/PhysRevLett.84.1982
M3 - Article
AN - SCOPUS:0001303571
SN - 0031-9007
VL - 84
SP - 1982
EP - 1985
JO - Physical review letters
JF - Physical review letters
IS - 9
ER -