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Damping effects and the metal-insulator transition in the two-dimensional electron gas

V. A. Khodel·M. V. Zverev·J. W. Clark
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Abstract

The damping of single-particle degrees of freedom in strongly correlated two-dimensional Fermi systems is analyzed. Suppression of the scattering amplitude due to the damping effects is shown to play a key role in preserving the validity of the Landau-Migdal quasiparticle picture in a region of a phase transition, associated with the divergence of the quasiparticle effective mass. The results of the analysis are applied to elucidate the behavior of the conductivity $σ(T)$ of the two-dimensional dilute electron gas in the density region where it undergoes a metal-insulator transition.

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V. A. Khodel, M. V. Zverev, J. W. Clark. 2005-02-26. Damping effects and the metal-insulator transition in the two-dimensional electron gas. https://doi.org/10.1134/1.1944070

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