Magnetic Field Effect for Two Electrons in a Two Dimensional Random Potential

Details Magnetic Field Effect for Two Electrons in a Two Dimensional Random Potential Magnetic Field Effect for Two Electrons in a Two Dimensional Random Potential

2000-11-28

arxiv.org/abs/cond-mat/0011461v1

Phys. Rev. B 63, 235103 (2001)

Physics

Condensed Matter

revtex, 7 pages, 6 figures

Scientific paper

10.1103/PhysRevB.63.235103

We study the problem of two particles with Coulomb repulsion in a two-dimensional disordered potential in the presence of a magnetic field. For the regime, when without interaction all states are well localized, it is shown that above a critical excitation energy electron pairs become delocalized by interaction. The transition between the localized and delocalized regimes goes in the same way as the metal-insulator transition at the mobility edge in the three dimensional Anderson model with broken time reversal symmetry.

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