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Proximity effect between superconductors and ferromagnets

Löhneysen, Hilbert von; Beckmann, D.; Goll, G.; Willard, F. Pérez; Stalzer, H.; Stokmaier, M.; Sürgers, Christoph

Superconductors (S) can be employed to probe the spin polarization of ferromagnetic metals (F) by virtue of Andreev reflection. Using nanocontacts defined by e-beam lithography, the spin-polarization of the current across an S/F interface can be determined reliably. Via non-local Andreev reflection, an incident electron from a nanocontact is retroreflected as a hole in an adjacent contact, forming spatially separated but entangled Einstein-Podoiski-Rosen pairs. Finally, the proximity-induced superconductivity can be probed by magnetization measurements. (C) 2007 Elsevier B.V. All rights reserved.

Zugehörige Institution(en) am KIT Institut für Festkörperphysik (IFP)
Institut für Nanotechnologie (INT)
Physikalisches Institut (PHI)
Publikationstyp Zeitschriftenaufsatz
Jahr 2007
Sprache Englisch
Identifikator ISSN: 0921-4534, 1873-2143
KITopen ID: 1000050491
HGF-Programm 43.02.03; LK 01
Erschienen in Physica / C
Band 460-462
Heft 1
Seiten 322-326
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