Superconducting proximity effect in a diffusive ferromagnet with spin-active interfaces
A. Cottet, W. Belzig
DOI 10.1103/PhysRevB.72.180503 · Physical Review B
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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 Gϕ which results from the spin dependence of the phase shifts acquired by electrons upon scattering on the interface. We show that Gϕ 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 Gϕ in the data of T. Kontos et al. [Phys. Rev. Lett. 86, 304 (2001), 89, 137007 (2002)].
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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