Coulomb Effects on the Magnetoconductance of a Two-Dimensional Electron Gas in a Lateral Superlattice: A Screened Hartree-Fock Calculation

Details Coulomb Effects on the Magnetoconductance of a Two-Dimensional Electron Gas in a Lateral Superlattice: A Screened Hartree-Fock Calculation Coulomb Effects on the Magnetoconductance of a Two-Dimensional Electron Gas in a Lateral Superlattice: A Screened Hartree-Fock Calculation

1996-09-10

arxiv.org/abs/cond-mat/9609093v1

Physics

Condensed Matter

5 pages, sprocl.sty included, presented at 12-th HMFSP, Wuerzburg (1996)

Scientific paper

We calculate the magnetoconductivity tensor of a 2D electron gas in a 1D periodic potential and quantising magnetic fields. We study the internal structure of the Shubnikov-de Haas peaks and analyse recent experimental results. The electron-electron interaction is accounted for within a screened Hartree-Fock approximation (HFA), which describes both compressible strips and an exchange-enhanced spin splitting, unlike the Hartree and the standard HFA.

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