Weak levitation of 2D delocalized states in a magnetic field.
Condensed Matter
2016-08-31 v1
Abstract
The deviation of the energy position of a delocalized state from the center of Landau level is studied in the framework of the Chalker-Coddington model. It is demonstrated that introducing a weak Landau level mixing results in a shift of the delocalized state up in energy. The mechanism of a levitation is a neighboring - Landau level - assisted resonant tunneling which ``shunts'' the saddle-points. The magnitude of levitation is shown to be independent of the Landau level number.
Keywords
Cite
@article{arxiv.cond-mat/9502059,
title = {Weak levitation of 2D delocalized states in a magnetic field.},
author = {T. V. Shahbazyan and M. E. Raikh},
journal= {arXiv preprint arXiv:cond-mat/9502059},
year = {2016}
}
Comments
Latex file (12 pages) + 3 Postscript figures.