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cond-mat1996
Coulomb Effects on the Magnetoconductance of a Two-Dimensional Electron Gas in a Lateral Superlattice: A Screened Hartree-Fock Calculation
Andrei Manolescu, Rolf R. Gerhardts
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…
cond-mat1996
Is the Hofstadter energy spectrum observable in far-infrared absorption?
Vidar Gudmundsson, Rolf R. Gerhardts
The far-infrared absorption of a periodically modulated two-dimensional electron gas in a perpendicular constant magnetic field is calculated self-consistently within the Hartree a…
cond-mat1995
The Hofstadter Energy Spectrum for an Interacting 2DEG
Vidar Gudmundsson, Rolf R. Gerhardts
We study the effects of the Coulomb interactions between electrons on the Hofstadter butterfly, which characterizes the subband structure of the Landau levels of a two-dimensional…