# Supercurrent Vortex Pinball via a Triplet Cooper Pair Inverse Edelstein   Effect

**Authors:** Morten Amundsen, Jacob Linder

arXiv: 1701.03108 · 2017-08-16

## TL;DR

This paper uncovers a controllable supercurrent vortex phenomenon in spin-orbit coupled Josephson junctions, driven by triplet Cooper pair polarization and an inverse Edelstein effect, emphasizing the need for higher-dimensional models.

## Contribution

It introduces the supercurrent vortex pinball effect caused by triplet Cooper pairs and demonstrates its controllability via exchange field and spin-orbit coupling variations.

## Key findings

- Supercurrent vortices can be manipulated by changing exchange field direction and strength.
- The phenomenon is linked to a Cooper pair-induced inverse Edelstein effect.
- Higher-dimensional models reveal phenomena hidden in 1D approximations.

## Abstract

We consider the Josephson effect through a thin spin-orbit coupled layer in the presence of an exchange field, and discover a set of supercurrent vortices appearing in the system which can be controllably moved around in the system by varying either the direction of the exchange field, its strength, or the spin-orbit coupling magnitude via a gate voltage. We refer to this phenomenon as a supercurrent vortex pinball effect and show that its origin is the spin polarization of the triplet Cooper pairs induced in the system. The supercurrent vortices thus arise from what resembles a Cooper pair-induced inverse Edelstein effect. Our results highlight the importance of considering higher-dimensional models for superconducting hybrid structures which unveils novel phenomena that are hidden in commonly used effective 1D models.

## Full text

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## Figures

17 figures with captions in the complete paper: https://tomesphere.com/paper/1701.03108/full.md

## References

36 references — full list in the complete paper: https://tomesphere.com/paper/1701.03108/full.md

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Source: https://tomesphere.com/paper/1701.03108