Frequency dependent conductivity in the integer quantum Hall effect
| dc.creator | Bäker, A. | |
| dc.creator | Schweitzer, L. | |
| dc.date | 1999-08-09 | |
| dc.date.accessioned | 2026-07-07T03:14:10Z | |
| dc.date.available | 2026-07-07T03:14:10Z | |
| dc.description | Frequency dependent electronic transport is investigated for a two-dimensional disordered system in the presence of a strong perpendicular static magnetic field. The ac-conductivity is calculated numerically from Kubo's linear response theory using a recursive Green's function technique. In the tail of the lowest Landau band, we find a linear frequency dependence for the imaginary part of $σ_{xx}(ω)$ which agrees well with earlier analytical calculations. On the other hand, the frequency dependence of the real part can not be expressed by a simple power law. The broadening of the $σ_{xx}$-peak with frequency in the lowest Landau band is found to exhibit a scaling relation from which the critical exponent can be extracted. | |
| dc.description | 4 pages LaTeX (annalen.cls), 3 ps-figures included. Proceedings of Localisation 1999, Hamburg, Germany; to appear in Annalen der Physik (Leipzig) | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9908123 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9908123 | |
| dc.identifier | Ann. Phys. (Leipzig) 8 (1999) Spec. Issue, SI-21 -- SI-24 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/29572 | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Frequency dependent conductivity in the integer quantum Hall effect | |
| dc.type | text |