| Superconducting proximity effect in a diffusive ferromagnet with spin-active interfaces (2005) | |||||||||||||
Abstract | |||||||||||||
| We reconsider the problem of the superconducting proximity effect in a diffusive ferromagnet bounded by tunneling interfaces, using spin-dependent boundary conditions. This introduces for each interface a phase-shifting conductance G Φ which results from the spin dependence of the phase shifts acquired by electrons upon scattering on the interface. We show that G Φ strongly affects the density of states and supercurrents predicted for superconducting/ferromagnetic hybrid circuits. We show the relevance of this effect by identifying clear signatures of G Φ in the data of T.Kontos et al. [Phys. Rev. Lett. 86, 304 (2001), 89, 137007 (2002)]. | |||||||||||||
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