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Controlling charge and spin transport in an Ising-superconductor Josephson junction

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2021

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Tang, Gaomin
Bruder, Christoph

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Physical Review B. American Physical Society (APS). 2021, 104(24), L241413. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.104.L241413

Zusammenfassung

An in-plane magnetic field applied to an Ising superconductor converts spin-singlet Cooper pairs to spin-triplet ones. In this work, we study a Josephson junction formed by two Ising superconductors that are proximitized by ferromagnetic (FM) layers. This leads to highly tunable spin-triplet pairing correlations which allow to modulate the charge and spin supercurrents through the in-plane magnetic exchange fields. For a junction with a nonmagnetic barrier, the charge current is switchable by changing the relative alignment of the in-plane exchange fields, and a π state can be realized. Furthermore, the charge and spin current-phase relations display a ϕ0-junction behavior for a strongly spin-polarized FM barrier.

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ISO 690TANG, Gaomin, Raffael L. KLEES, Christoph BRUDER, Wolfgang BELZIG, 2021. Controlling charge and spin transport in an Ising-superconductor Josephson junction. In: Physical Review B. American Physical Society (APS). 2021, 104(24), L241413. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.104.L241413
BibTex
@article{Tang2021Contr-54488.2,
  year={2021},
  doi={10.1103/PhysRevB.104.L241413},
  title={Controlling charge and spin transport in an Ising-superconductor Josephson junction},
  number={24},
  volume={104},
  issn={2469-9950},
  journal={Physical Review B},
  author={Tang, Gaomin and Klees, Raffael L. and Bruder, Christoph and Belzig, Wolfgang},
  note={Article Number: L241413}
}
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