Anomalous Low-Field Classical Magnetoresistance in Two Dimensions

Abstract

The magnetoresistance of classical two-dimensional electrons scattered by randomly distributed impurities is investigated by numerical simulation. At low magnetic fields, we find for the first time a negative magnetoresistance proportional to |B|. This unexpected behavior is shown to be due to a memory effect specific for backscattering events, which was not considered previously.

4 pages, 4 figures

References in corpus (5)

• Quasiclassical negative magnetoresistance of a 2D electron gas: interplay of strong scatterers and smooth disorder
• Strong magnetoresistance induced by long-range disorder
• Quasiclassical magnetotransport in a random array of antidots
• Suppression of chaotic dynamics and localization of two-dimensional electrons by a weak magnetic field
• Classical mechanism for negative magnetoresistance in two dimensions

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• Non-Markovian spin relaxation in two-dimensional electron gas
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