Spin accumulation in small ferromagnetic double-barrier junctions

Authors
Brataas, A Nazarov, YV Inoue, J Bauer, GEW
Citation
A. Brataas et al., Spin accumulation in small ferromagnetic double-barrier junctions, PHYS REV B, 59(1), 1999, pp. 93-96
Citations number
19
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
59
Issue
1
Year of publication
1999
Pages
93 - 96
Database
ISI
SICI code
0163-1829(19990101)59:1<93:SAISFD>2.0.ZU;2-S
Abstract
The nonequilibrium spin accumulation in ferromagnetic double barrier juncti ons is shown to govern the transport in small structures. Transport propert ies of such systems are described by a generalization of the theory of the Coulomb blockade. The spin accumulation enhances the magnetoresistance. The transient nonlinear transport properties are predicted to provide a unique experimental evidence of the spin accumulation in the form of a reversed c urrent on time scales of the order of the spin-flip relaxation time. [S0163 -1829(99)05302-3].