Spin polarized current and Andreev transmission in planar superconducting-ferromagnetic Nb-Ni junctions
Gonzalez, E. M. · Dominguez-Folgueras, A. · Palomares, F. J. · Escudero, R. · Villegas, J. E. · Gonzalez, J. M. · Ferrer, J. · Guinea, F. · Vicent, J. L.
Original · EN
We have measured and modeled, using three different approaches, the tunneling current in a Nb/NbxOy/Ni planar tunnel junction. The experimental data could be fitted and the correct current polarization could be extracted using a simple quasiclassical model, even in the absence of an applied magnetic field. We also discuss the microscopic structure of the barrier.
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