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arXiv · 2103.05871

Anisotropic superconducting spin transport at magnetic interfaces

Yuya Ominato·Ai Yamakage·Mamoru Matsuo
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Abstract

We present a theoretical investigation of anisotropic superconducting spin transport at a magnetic interface between a p-wave superconductor and a ferromagnetic insulator. Our formulation describes the ferromagnetic resonance modulations due to spin current generation depending on spin-triplet Cooper pair, including the frequency shift and enhanced Gilbert damping, in a unified manner. We find that the Cooper pair symmetry is detectable from the qualitative behavior of the ferromagnetic resonance modulation. Our theory paves the way toward anisotropic superconducting spintronics.

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Yuya Ominato, Ai Yamakage, Mamoru Matsuo. 2021-03-10. Anisotropic superconducting spin transport at magnetic interfaces. https://doi.org/10.1103/physrevb.106.l161406

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