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Huge nonequilibrium magnetoresistance in hybrid superconducting spin valves
2.M. N. Baibich, J. M. Broto, A. Fert, F. Nguyen Van Dau, F. Petroff, P. Eitenne, G. Creuzet, A. Friederich, and J. Chazelas, Phys. Rev. Lett. 61, 2472 (1988).
5.In the opposite case, the superconductor is marginally affected by the proximity of the layer (Ref. 3).
8.We set throughout the paper a realistic smearing parameter (see Ref. 7).
11.Further details will be reported elsewhere.
12.We stress once more that all the finite-bias features appearing in Figs. 2(a) and 2(b) simply reflect how the spin-dependent DOS in each superconductor contributes to the total quasiparticle current at different .
13.M. Tinkham, Introduction to Superconductivity (Dover, New York, 1996).
17.For , vanishes like in junctions with an in-plane magnetic field (Ref. 9).
18.Note that is achievable in the quasiequilibrium limit as well.
22.We note that the bias voltage can be led to the structure through outer electrodes, tunnel coupled to the layers in order to prevent depolarization of the ferromagnets. This would result in adding in series extra resistances which can be engineered so to make negligible the induced correction to both the TMR and the operating voltage.
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