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Controlling spin in an electronic interferometer with spin-active interfaces

Cottet, A. and Kontos, T. and Belzig, W. and Schönenberger, C. and Bruder, C.. (2006) Controlling spin in an electronic interferometer with spin-active interfaces. Europhysics Letters, Vol. 74, H. 2. pp. 320-326.

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Official URL: http://edoc.unibas.ch/dok/A5252830

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Abstract

We consider electronic current transport through a ballistic one-dimensional quantum wire connected to two ferromagnetic leads. We study the effects of the spin-dependence of interfacial phase shifts ( SDIPS) acquired by electrons upon scattering at the boundaries of the wire. The SDIPS produces a spin-splitting of the wire resonant energies which is tunable with the gate voltage and the angle between the ferromagnetic polarizations. This property could be used for manipulating spins. In particular, it leads to a giant magnetoresistance effect with a sign tunable with the gate voltage and the magnetic field applied to the wire.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik (Bruder)
UniBasel Contributors:Bruder, Christoph
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Les éditions de physique
ISSN:0302-072X
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:25
Deposited On:22 Mar 2012 13:44

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