Spin filtering in a magnetic-electric barrier structure

Authors
Papp, G Peeters, FM
Citation
G. Papp et Fm. Peeters, Spin filtering in a magnetic-electric barrier structure, APPL PHYS L, 78(15), 2001, pp. 2184-2186
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
78
Issue
15
Year of publication
2001
Pages
2184 - 2186
Database
ISI
SICI code
0003-6951(20010409)78:15<2184:SFIAMB>2.0.ZU;2-7
Abstract
The spin-dependent tunnelling of two-dimensional electrons through a magnet ic barrier can be substantially enhanced by the addition of an electric bar rier. The spin polarization is found to be strongly dependent on the incide nt wave vector parallel to the barrier, the incident electron energy, and t he height of the electric barrier. The conductance for the spin-up and spin -down electrons can be tuned with this electrical barrier. (C) 2001 America n Institute of Physics.