Spin-transport in multi-terminal normal metal-ferromagnet systems with non-collinear magnetizations

Authors
Brataas, A Nazarov, YV Bauer, GEW
Citation
A. Brataas et al., Spin-transport in multi-terminal normal metal-ferromagnet systems with non-collinear magnetizations, EUR PHY J B, 22(1), 2001, pp. 99-110
Citations number
39
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
EUROPEAN PHYSICAL JOURNAL B
ISSN journal
14346028 → ACNP
Volume
22
Issue
1
Year of publication
2001
Pages
99 - 110
Database
ISI
SICI code
1434-6028(200107)22:1<99:SIMNMS>2.0.ZU;2-4
Abstract
A theory of spin-transport in hybrid normal metal-ferromagnetic electronic circuits is developed, taking into account non-collinear spin-accumulation. Spin-transport through resistive elements is described by 4 conductance pa rameters. Microscopic expression for these conductances are derived in term s of scattering matrices and explicitly calculated for simple models. The c ircuit theory is applied to 2-terminal and 3-terminal devices attached to f erromagnetic reservoirs.