Abstract
We investigate the sliding state of a two-dimensional Wigner crystal in a strong magnetic field in the presence of randomness and free carriers, using a high-velocity perturbation theory. We find that the Hall resistivity retains its classical value within the second order Born approximation, and that disorder induces predominantly transverse distortions. We calculate the interference effects that arise in combined ac+dc fields for the present system. We examine recent experiments that measure the nonlinear conductivity for the insulating phases in the fractional quantum Hall effect regime.
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