Two electron view on metal-insulator transition in two dimensions

Details Two electron view on metal-insulator transition in two dimensions Two electron view on metal-insulator transition in two dimensions

1999-05-17

arxiv.org/abs/cond-mat/9905231v1

Physics

Condensed Matter

Proceedings of the Rencontres de Moriond 1999; 5 pages, 4 figures

Scientific paper

The model of two electrons with Coulomb interaction on a two-dimensional (2D) disordered lattice is considered. It is shown that the interaction can give a sharp transition to delocalized states in a way similar to the Anderson transition in 3D. The localized phase appears when the ratio of the Coulomb energy to the Fermi energy becomes larger than some critical value dependent on the disorder. The relation to the experiments on metal-insulator transition in 2D is also discussed.

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