The Hofstadter Energy Spectrum for an Interacting 2DEG

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dc.creatorGudmundsson, Vidar
dc.creatorGerhardts, Rolf R.
dc.date1995-08-16
dc.date.accessioned2026-07-07T03:07:51Z
dc.date.available2026-07-07T03:07:51Z
dc.descriptionWe 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 electron gas in a perpendicular homogeneous magnetic field and a periodic lateral superlattice potential. The interactions essentially preserve the intricate gap structure of the Hofstadter spectra, but with a lower symmetry that depends on the filling of the Landau bands. For short enough periods and strong enough modulation the miniband structure can be resolved in the thermodynamic density of states.
dc.descriptionLaTeX 4 pages with 3 PostScript figures, Contribution to EP2DSXI Nottingham August 95 to appear in Surface Science
dc.identifierhttps://arxiv.org/abs/cond-mat/9508054
dc.identifierhttp://arxiv.org/abs/cond-mat/9508054
dc.identifierSurface Science 361-362, 505 (1996)
dc.identifierdoi:10.1016/0039-6028(96)00456-6
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/27329
dc.subjectCondensed Matter
dc.titleThe Hofstadter Energy Spectrum for an Interacting 2DEG
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