APS » PROLA » Rev. Mod. Phys. » Volume 73 » Issue 2

Rev. Mod. Phys. 73, 251 - 266 (2001)

Metallic behavior and related phenomena in two dimensions
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Elihu Abrahams
Center for Materials Theory, Physics Department, Rutgers University, Piscataway, New Jersey 08854

Sergey V. Kravchenko
Physics Department, Northeastern University, Boston, Massachusetts 02115

Myriam P. Sarachik
Physics Department, City College of the City University of New York, New York, New York 10031

Published 14 March 2001

For about 20 years, it has been the prevailing view that there can be no metallic state or metal-insulator transition in two dimensions in zero magnetic field. In the last several years, however, unusual behavior suggestive of such a transition has been reported in a variety of dilute two-dimensional electron and hole systems. The physics behind these observations is at present not understood. The authors review and discuss the main experimental findings and suggested theoretical models.


©2001 The American Physical Society

URL: http://link.aps.org/abstract/RMP/v73/p251
DOI: 10.1103/RevModPhys.73.251
PACS: 71.30.+h, 01.30.Rr, 72.60.+g, 85.30.Tv, 73.21.-b

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