From semiclassical transport to quantum Hall effect under low-field Landau quantization

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

The crossover from the semiclassical transport to quantum Hall effect is studied by examining a two-dimensional electron system in an AlGaAs/GaAs heterostructure. By probing the magneto-oscillations, it is shown that the semiclassical Shubnikov-de Haas (SdH) formulation can be valid even when the minima of the longitudinal resistivity approach zero. The extension of the applicable range of the SdH theory could be due to the damping effects resulting from disorder and temperature. Moreover, we observed plateau-plateau transition like behavior with such an extension. From our study, it is important to include the positive magnetoresistance to refine the SdH theory.
11 pages, 5 figures

Keywords

Mesoscale and Nanoscale Physics

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/121498

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0608408
 http://arxiv.org/abs/cond-mat/0608408
 Solid State Communications 141, 17 (2007).
 doi:10.1016/j.ssc.2006.09.044

Collections

arXiv