Current oscillations in a superlattice under non-quantizing electric and magnetic fields
Mesoscale and Nanoscale Physics
2009-05-25 v2 Materials Science
Abstract
We calculate the current density in a semiconductor superlattice with parabolic miniband under crossed non-quantizing electric and magnetic fields. The Corbino disk geometry is considered. The current-voltage curve contains oscillations with period proportional to the magnetic field. The possibility is shown of the negative absolute conductivity. The Ampere-Gauss characteristics also contain overshoots under high enough electric fields. In all cases, the peaks smear with temperature rising.
Keywords
Cite
@article{arxiv.0905.3457,
title = {Current oscillations in a superlattice under non-quantizing electric and magnetic fields},
author = {G. M. Shmelev and E. M. Epshtein and M. B. Belonenko},
journal= {arXiv preprint arXiv:0905.3457},
year = {2009}
}
Comments
8 pages, 4 figures