Perez-Willard, F , Cuevas, J C , Surgers, C , Pfundstein, P , Kopu, J , Eschrig, Matthias and von Lohneysen, H (2004) Determining the current polarization in Al/Co nanostructured point contacts. Physical Review B, 69 (14).
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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.
This is a Submitted version This version's date is: 5/4/2004 This item is not peer reviewed
https://repository.royalholloway.ac.uk/items/484330ef-d24a-dbfe-fde5-70a7291a14df/6/
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