Enhancement of Andreev reflection by spin polarization in out-of-equilibrium ferromagnet-superconductor junctions

O. Bourgeois, P. Gandit, J. Lesueur +4

We report on transport measurements on Nb/Al/Gd/Al/Nb junctions.Bulk Gadolinium is a weakly polarized ferromagnet (5-7%), and is present in the junction in granular form (superpara…