@inproceedings{5866bb49053044418c17d39d1b2a51f2,
title = "Negative differential conductance in cleaved edge overgrown surface superlattices",
abstract = "In situ overgrowth of an undoped GaAs/Al 0.3Ga 0.7As superlattice with a gate electrode separated by a barrier layer produces an array of strongly coupled quantum wires. The gate allows direct control of edge channel density. The observed transport properties are very sensitive to the transport channel length. Samples with long superlattices exhibit transport characteristics dominated by an inhomogeneous density and field distribution along the channel. In shorter superlattice samples a leakage current through the bulk superlattice stabilizes the field distribution in the two-dimensional channel and allows the observation of current-voltage characteristics that exhibit strong negative differential conductance without the formation of electric field domains.",
author = "T. Feil and Tranitz, \{H. P.\} and M. Reinwald and W. Wegscheider and M. Bichler and D. Schuh and G. Abstreiter and Allen, \{S. J.\}",
year = "2005",
month = jun,
day = "30",
doi = "10.1063/1.1994398",
language = "English",
isbn = "0735402574",
series = "AIP Conference Proceedings",
pages = "900--901",
booktitle = "PHYSICS OF SEMICONDUCTORS",
note = "PHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors, ICPS-27 ; Conference date: 26-07-2004 Through 30-07-2004",
}