Noise at the Wigner Glass Transition
arXiv:cond-mat/0404255 · doi:10.1103/PhysRevLett.93.176405
Abstract
Using a simple model for interacting electrons in two dimensions with random disorder, we show that a crossover from a Wigner liquid to a Wigner glass occurs as a function of charge density. The noise power increases strongly at the transition and the characteristics of the 1/f^alpha noise change. When the temperature is increased, the noise power decreases. We compare these results with recent noise measurements in systems with two-dimensional metal-insulator transitions.
4 pages, 5 postscript figures