Butterfly-like spectra and collective modes of antidot superlattices in magnetic fields
| dc.creator | Anisimovas, Egidijus | |
| dc.creator | Johansson, Peter | |
| dc.date | 1999-07-07 | |
| dc.date.accessioned | 2026-07-07T03:13:50Z | |
| dc.date.available | 2026-07-07T03:13:50Z | |
| dc.description | We calculate the energy band structure for electrons in an external periodic potential combined with a perpendicular magnetic field. Electron-electron interactions are included within a Hartree approximation. The calculated energy spectra display a considerable degree of self-similarity, just as the ``Hofstadter butterfly.'' However, screening affects the butterfly, most importantly the bandwidths oscillate with magnetic field in a characteristic way. We also investigate the dynamic response of the electron system in the far-infrared (FIR) regime. Some of the peaks in the FIR absorption spectra can be interpreted mainly in semiclassical terms, while others originate from inter(sub)band transitions. | |
| dc.description | 4 pages with 2 embeded eps figures. Uses revtex, multicol and graphicx styles. Accepted for publication in PRB Brief Reports | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9907095 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9907095 | |
| dc.identifier | Phys. Rev. B 60, 7744 (1999) | |
| dc.identifier | doi:10.1103/PhysRevB.60.7744 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/29457 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Butterfly-like spectra and collective modes of antidot superlattices in magnetic fields | |
| dc.type | text |