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arXiv · 2207.05400

Generation of polarized spin-triplet Cooper pairings by magnetic barriers in superconducting junctions

Shun Tamura·Yukio Tanaka·Takehito Yokoyama
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Abstract

We investigate the proximity effect in an s-wave superconductor/ferromagnetic metal with a Rashba spin-orbit coupling/diffusive normal metal junction and an s-wave superconductor/noncollinear magnetic metal/diffusive normal metal junction. We show the generation of equal spin-triplet pairings in the diffusive normal metal due to spin-flip scattering in the intermediate magnetic regions. The emergence of the spin-triplet odd-frequency Cooper pairings can generate a zero-energy peak in the quasiparticle density of states in the diffusive normal metal.

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Shun Tamura, Yukio Tanaka, Takehito Yokoyama. 2022-07-12. Generation of polarized spin-triplet Cooper pairings by magnetic barriers in superconducting junctions. https://doi.org/10.1103/physrevb.107.054501

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