Radiation-Induced "Zero-Resistance State" and the Photon Assisted Transport
Mesoscale and Nanoscale Physics
2007-05-23 v3 Statistical Mechanics
Abstract
We demonstrate that the radiation induced "zero-resistance state" observed in a two-dimensional electron gas is a result of the non-trivial structure of the density of states of the systems and the photon assisted transport. A toy model of a structureless quantum tunneling junction where the system has oscillatory density of states catches most of the important features of the experiments. We present a generalized Kubo-Greenwood conductivity formula for the photon assisted transport in a general system, and show essentially the same nature of the transport anomaly in a uniform system.
Keywords
Cite
@article{arxiv.cond-mat/0302393,
title = {Radiation-Induced "Zero-Resistance State" and the Photon Assisted Transport},
author = {Junren Shi and X. C. Xie},
journal= {arXiv preprint arXiv:cond-mat/0302393},
year = {2007}
}
Comments
4 pages, 3 figures. Please send comment to [email protected]. This version added a paragraph to discuss the implication of negative conductance