Coulomb Drag as a Probe of the Nature of Compressible States in a Magnetic Field

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dc.creatorMuraki, K.
dc.creatorLok, J. G. S.
dc.creatorKraus, S.
dc.creatorDietsche, W.
dc.creatorvon Klitzing, K.
dc.creatorSchuh, D.
dc.creatorBichler, M.
dc.creatorWegscheider, W.
dc.date2003-11-07
dc.date.accessioned2026-07-07T02:54:38Z
dc.date.available2026-07-07T02:54:38Z
dc.descriptionMagneto-drag reveals the nature of compressible states and the underlying interplay of disorder and interactions. At ν=3/2 a clear T^{4/3} dependence is observed, which signifies the metallic nature of the N=0 Landau level. In contrast, drag in higher Landau levels reveals an additional contribution, which anomalously grows with decreasing T before turning to zero following a thermal activation law. The anomalous drag is discussed in terms of electron-hole asymmetry arising from disorder and localization, and the crossover to normal drag at high fields as due to screening of disorder.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0311151
dc.identifierhttp://arxiv.org/abs/cond-mat/0311151
dc.identifierPhys. Rev. Lett. 92, 246801 (2004)
dc.identifierdoi:10.1103/PhysRevLett.92.246801
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/22633
dc.subjectMesoscale and Nanoscale Physics
dc.titleCoulomb Drag as a Probe of the Nature of Compressible States in a Magnetic Field
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