Delocalization induced by low-frequency driving in disordered superlattices
Disordered Systems and Neural Networks
2009-11-11 v1 Mesoscale and Nanoscale Physics
Abstract
We study the localization properties of disordered semiconductor superlattices driven by ac-fields. The localization length of the electrons in the superlattice increases when the frequency of the driving field is smaller than the miniband width. We show that there is an optimal value of the amplitude of the driving field for which the localization length of the system is maximal. This maximum localization length increases with the inverse of the driving frequency.
Keywords
Cite
@article{arxiv.cond-mat/0511202,
title = {Delocalization induced by low-frequency driving in disordered superlattices},
author = {Dario F. Martinez and Rafael A. Molina},
journal= {arXiv preprint arXiv:cond-mat/0511202},
year = {2009}
}
Comments
5 pages, 4 figures