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arXiv · 2211.10120

Spin-dependent coupling of supercurrent and nonequilibrium quasiparticles in high-field superconductors

P. Maier·D. Beckmann
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Abstract

We report on an experimental investigation of the combined effect of nonequilibrium quasiparticle injection and supercurrent in superconducting aluminum wires. At low temperature, we observe the supercurrent-induced coupling of energy and charge imbalance with spectral resolution. At high magnetic fields, in the presence of a Zeeman splitting of the density of states, we find evidence for an additional spin-dependent coupling which has been recently predicted theoretically.

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P. Maier, D. Beckmann. 2022-11-18. Spin-dependent coupling of supercurrent and nonequilibrium quasiparticles in high-field superconductors. https://doi.org/10.1103/physrevb.107.054504

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