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Originalveröffentlichung
DOI: 10.1103/PhysRevB.69.140502
Scopus
Zitationen: 56
Web of Science
Zitationen: 52

Determining the current polarization on Al/Co nanostructured point contacts

Löhneysen, H. von; Pérez-Willard, F.; Cuevas, J. C.; Sürgers, C.; Pfundstein, P.; Kopu, J.; Eschrig, M.

Abstract:
We present a study of the Andreev reflections in superconductor/ferromagnet nanostructured point contacts. The experimental data are analyzed in the frame of a model with two spin-dependent transmission coefficients for the majority and minority charge carriers in the ferromagnet. This model consistently describes the whole set of conductance measurements as a function of voltage, temperature, and magnetic field. The ensemble of our results shows that the degree of spin polarization of the current can be unambiguously determined using Andreev physics.


Zugehörige Institution(en) am KIT Institut für Festkörperphysik (IFP)
Physikalisches Institut (PHI)
Publikationstyp Zeitschriftenaufsatz
Jahr 2004
Sprache Englisch
Identifikator ISSN: 0163-1829, 0556-2805, 1094-1622, 1095-3795, 1098-0121, 1550-235X, 2469-9950, 2469-9969
KITopen-ID: 1000013577
HGF-Programm 52.01.01 (POF I, LK 01)
Erschienen in Physical review / B
Band 69
Heft 14
Seiten Art.Nr. 140502
Nachgewiesen in Web of Science
Scopus
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