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Size Dependence of Current Spin Polarization through Superconductor/Ferromagnet Nanocontacts

Stokmaier, M.; Goll, G.; Weissenberger, D.; Sürgers, C.; Löhneysen, H. v.

The spin polarization P of the transport current through the interface between superconducting Al and ferromagnetic Fe is determined by means of Andreev reflection at nanostructured point contacts. We observe a systematic decrease of P with decreasing contact resistance. Our data provide evidence for the reduction of P by spin-orbit scattering and thus establish a link between density of states and transport spin polarizations.

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DOI: 10.1103/PhysRevLett.101.147005
Zitationen: 17
Web of Science
Zitationen: 16
Zugehörige Institution(en) am KIT Physikalisches Institut (PHI)
Institut für Festkörperphysik (IFP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2008
Sprache Englisch
Identifikator ISSN: 0031-9007, 1079-7114, 1092-0145
KITopen-ID: 1000013560
HGF-Programm 43.02.01 (POF I, LK 01)
Erschienen in Physical review letters
Band 101
Heft 14
Seiten Art.Nr. 147005
Nachgewiesen in Scopus
Web of Science
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