Reconstruction of the DOS at the end of a S/F bilayer

I. V. Bobkova; A. M. Bobkov

doi:10.1134/s0021364019010016

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arXiv · 1811.04373

Reconstruction of the DOS at the end of a S/F bilayer

I. V. Bobkova·A. M. Bobkov

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Abstract

Influence of a nonmagnetic surface on the density of states in a spin-split superconductor, which is realized on the basis of a S/F bilayer, is investigated. It is demonstrated that if the ferromagnet magnetization has a defect in the form of a domain wall in the vicinity of the surface, the superconducting density of states is reconstructed manifesting the spin-split Andreev resonances. Formation of these resonances is not connected to any superconducting order parameter inhomogeneities. Andreev reflection processes forming the resonances occur at the inhomogeneity of the spin-split gap generated by the domain wall. These resonances can be used as a spectroscopic probe of a domain wall presence and motion.

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I. V. Bobkova, A. M. Bobkov. 2018-11-11. Reconstruction of the DOS at the end of a S/F bilayer. https://doi.org/10.1134/s0021364019010016

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