Magneto-transport and divergent screening of driven two dimensional electron gas in high Landau levels

Details Magneto-transport and divergent screening of driven two dimensional electron gas in high Landau levels Magneto-transport and divergent screening of driven two dimensional electron gas in high Landau levels

2005-11-08

arxiv.org/abs/cond-mat/0511195v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

10 pages, 3 figures

Scientific paper

In two dimensional electron system in magnetic fields such that the Fermi energy lies in high Landau levels and driven by microwave $ac$-field a divergence of the Coulomb screening due to the Ryzhii photocurrent is predicted. A model of magneto-transport with superposition of long range and short range disorders is introduced. In this model the larger is the gradient of the long range potential the smaller is the longitudinal conductivity/resistivity. As a consequence a qualitative theory of the recently discovered zero-resistance states is given.

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