Abstract.
Based on theory and experiments in weakly interacting electron systems, it was believed for many years that no metallic phase is possible in two dimensions. The unexpected observation of metallic-like behavior in strongly interacting electron systems has thus drawn considerable attention. Following background material and a brief history, we review the dramatic response of these 2D systems to in-plane magnetic fields, and the evidence this provides for a possible quantum phase transition.
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Received: 30 January 2004, Published online: 20 July 2004
PACS:
71.30. + h Metal-insulator transitions and other electronic transitions - 73.40.Qv Metal-insulator-semiconductor structures (including semiconductor-to-insulator) - 73.50.Jt Galvanomagnetic and other magnetotransport effects (including thermomagnetic effects)
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Sarachik, M.P., Kravchenko, S.V. Novel phenomena in dilute electron systems in two dimensions. Eur. Phys. J. B 40, 397–402 (2004). https://doi.org/10.1140/epjb/e2004-00210-2
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DOI: https://doi.org/10.1140/epjb/e2004-00210-2