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Strong magnetoresistance induced by long-range disorder

A. D. Mirlin·J. Wilke·F. Evers·D. G. Polyakov·P. Woelfle
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Abstract

We calculate the semiclassical magnetoresistivity $ρ_{xx}(B)$ of non-interacting fermions in two dimensions moving in a weak and smoothly varying random potential or random magnetic field. We demonstrate that in a broad range of magnetic fields the non-Markovian character of the transport leads to a strong positive magnetoresistance. The effect is especially pronounced in the case of a random magnetic field where $ρ_{xx}(B)$ becomes parametrically much larger than its B=0 value.

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A. D. Mirlin, J. Wilke, F. Evers, D. G. Polyakov, P. Woelfle. 1999-05-25. Strong magnetoresistance induced by long-range disorder. https://doi.org/10.1103/physrevlett.83.2801

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