Temperature and Magnetic Field Enhanced Hall Slope of a Dilute 2D Hole System in the Ballistic Regime

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dc.creatorGao, Xuan P. A.
dc.creatorBoebinger, G. S.
dc.creatorMills Jr., A. P.
dc.creatorRamirez, A. P.
dc.creatorPfeiffer, L. N.
dc.creatorWest, K. W.
dc.date2004-11-15
dc.date.accessioned2026-07-07T03:02:09Z
dc.date.available2026-07-07T03:02:09Z
dc.descriptionWe report the temperature($T$) and perpendicular magnetic field($B$) dependence of the Hall resistivity $ρ_{xy}(B)$ of dilute metallic two-dimensional(2D) holes in GaAs over a broad range of temperature(0.02-1.25K). The low $B$ Hall coefficient, $R_H$, is found to be enhanced when $T$ decreases. Strong magnetic fields further enhance the slope of $ρ_{xy}(B)$ at all temperatures studied. Coulomb interaction corrections of a Fermi liquid(FL) in the ballistic regime can not explain the enhancement of $ρ_{xy}$ which occurs in the same regime as the anomalous metallic longitudinal conductivity. In particular, although the metallic conductivity in 2D systems has been attributed to electron interactions in a FL, these same interactions should reduce, {\it not enhance} the slope of $ρ_{xy}(B)$ as $T$ decreases and/or $B$ increases.
dc.descriptionAccepted for publication in Physical Review Letters
dc.identifierhttps://arxiv.org/abs/cond-mat/0411391
dc.identifierhttp://arxiv.org/abs/cond-mat/0411391
dc.identifierPhys. Rev. Lett. 93, 256402 (2004)
dc.identifierdoi:10.1103/PhysRevLett.93.256402
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25292
dc.subjectStrongly Correlated Electrons
dc.subjectMesoscale and Nanoscale Physics
dc.titleTemperature and Magnetic Field Enhanced Hall Slope of a Dilute 2D Hole System in the Ballistic Regime
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