Multistability, absolute negative conductivity and spontaneous current generation in semiconductor superlattices in large magnetic fields

Authors
Cannon, EH Campbell, DK Kusmartsev, FV Alekseev, KN
Citation
Eh. Cannon et al., Multistability, absolute negative conductivity and spontaneous current generation in semiconductor superlattices in large magnetic fields, SUPERLATT M, 27(5-6), 2000, pp. 495-498
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SUPERLATTICES AND MICROSTRUCTURES
ISSN journal
07496036 → ACNP
Volume
27
Issue
5-6
Year of publication
2000
Pages
495 - 498
Database
ISI
SICI code
0749-6036(200005/06)27:5-6<495:MANCAS>2.0.ZU;2-I
Abstract
We discuss electron transport through a semiconductor superlattice subject to an electric field parallel to, and a magnetic field perpendicular to, th e growth axis using a semiclassical balance equation model. We find that th e current-voltage characteristic becomes multistable in a large magnetic fi eld; furthermore, hot electrons display novel features in their current-vol tage characteristic, including absolute negative conductivity and a spontan eously generated de current at zero bias. (C) 2000 Academic Press.