Phys. Rev. Lett. 91, 086801 (2003) [4 pages]Radiation-Induced “Zero-Resistance State” and the Photon-Assisted TransportReceived 20 February 2003; published 21 August 2003 We demonstrate that the radiation-induced “zero-resistance state” observed in a two-dimensional electron gas is a result of the nontrivial structure of the density of states of the systems and the photon-assisted transport. A toy model of a quantum tunneling junction with oscillatory density of states in leads 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. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.086801
DOI:
10.1103/PhysRevLett.91.086801
PACS:
73.40.–c, 78.68.+m
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.