Superconducting/ferromagnetic diffusive bilayer with a spin-active interface: a numerical study

Abstract

We calculate the density of states (DOS) in a diffusive superconducting/ferromagnetic bilayer with a spin-active interface. We use a self-consistent numerical treatment to make a systematic study of the effects of the Spin-Dependence of Interfacial Phase Shifts (SDIPS) on the self-consistent superconducting gap and the DOS. Strikingly, we find that the SDIPS can induce a double gap structure (DGS) in the DOS of the ferromagnet, even when the superconducing layer is much thicker than the superconducting coherence lenght. We thus obtain DOS curves which have interesting similarities with those of Phys. Rev. Lett. 100, 237002 (2008).

7 pages, 6 figures, revised version

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Cited by in corpus (7)

• Spin-dependent boundary conditions for isotropic superconducting Green's functions
• Signature of odd-frequency pairing correlations induced by a magnetic interface
• Emergence of Triplet Correlations in Superconductor/Half Metallic Nanojunctions with Spin Active Interfaces
• Current-voltage characteristics of tunnel Josephson junctions with a ferromagnetic interlayer
• Manifestation of a spin-splitting field in a thermally-biased Josephson junction
• Spin imbalance in hybrid superconducting structures with spin-active interfaces
• Density of states and current-voltage characteristics in SIsFS junctions