Domain Patterns in the Microwave-Induced Zero-Resistance State
Abstract
It has been proposed that the microwave-induced ``zero-resistance'' phenomenon, observed in a GaAs two-dimensional electron system at low temperatures in moderate magnetic fields, results from a state with multiple domains, in which a large local electric field is oriented in different directions. We explore here the questions of what may determine the domain arrangement in a given sample, what do the domains look like in representative cases, and what may be the consequences of domain-wall localization on the macroscopic dc conductance. We consider both effects of sample boundaries and effects of disorder, in a simple model, which has a constant Hall conductivity, and is characterized by a Lyapunov functional.
Cite
@article{arxiv.cond-mat/0510722,
title = {Domain Patterns in the Microwave-Induced Zero-Resistance State},
author = {Ilya Finkler and Bertrand I. Halperin and Assa Auerbach and Amir Yacoby},
journal= {arXiv preprint arXiv:cond-mat/0510722},
year = {2015}
}
Comments
19 pages, 5 figures; submitted to a special issue of Journal of Statistical Physics, in honor of P. C. Hohenberg and J. S. Langer