2D Lattice of coupled Sinai billiards: metal or insulator at g<<1

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dc.creatorBudantsev, M. V.
dc.creatorKvon, Z. D.
dc.creatorPogosov, A. G.
dc.creatorGusev, G. M.
dc.creatorPortal, J. C.
dc.creatorMaude, D. K.
dc.creatorMoshegov, N. T.
dc.creatorToropov, A. I.
dc.date1998-02-18
dc.date.accessioned2026-07-07T03:09:59Z
dc.date.available2026-07-07T03:09:59Z
dc.descriptionWe investigate the transport in a two-dimensional (2D) lattice of coupled Sinai billiards fabricated on the basis of a high-mobility 2D electron gas in GaAs/AlGaAs heterojunction. For the states with low reduced conductivity g<<1 an anomalously weak temperature dependence of g was found. The large negative magnetoresistance described by the Lorentz line-shape of the width corresponding to the half magnetic flux quantum through the area of the billiard is observed. In going from g>1 to g<<1 it strongly increases. The Shubnikov-de Haas oscillations and commensurability magnetoresistance peak are preserved at g<<1. The data suggest that the system studied behaves more like a metal than an insulator at g<<1 and is not described by the generally accepted picture of Anderson localization.
dc.description8 pages, 3 figures. Submitted to Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/cond-mat/9802188
dc.identifierhttp://arxiv.org/abs/cond-mat/9802188
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/28103
dc.subjectMesoscale and Nanoscale Physics
dc.subjectDisordered Systems and Neural Networks
dc.title2D Lattice of coupled Sinai billiards: metal or insulator at g<<1
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