Size Dependence of Current Spin Polarization through Superconductor/Ferromagnet Nanocontacts
M. Stokmaier, G. Goll, D. Weissenberger, C. Sürgers, H. v. Löhneysen
DOI 10.1103/PhysRevLett.101.147005 · Physical Review Letters
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Abstract
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.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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