# Predicted antiferromagnetic-vortex dynamics driven by spin polarized   current in thin discs

**Authors:** R.L. Silva, R.C. Silva, R.J.C. Lopes, W.A. Moura-Melo, A.R. Pereira

arXiv: 1812.07537 · 2018-12-19

## TL;DR

This paper explores how spin-polarized currents can control vortex dynamics in antiferromagnetic thin discs, offering potential for electric manipulation in topological spintronics.

## Contribution

It demonstrates that alternating spin-polarized currents can induce and control vortex oscillations in antiferromagnetic nanodiscs, a novel approach for spintronic device control.

## Key findings

- Vortex oscillations have well-defined amplitude and frequency.
- Oscillatory dynamics can be controlled by alternating currents.
- Potential applications in antiferromagnetic spintronics.

## Abstract

We investigate vortex configuration in antiferromagnetic thin discs. It is shown that the vortex acquires oscillatory dynamics with well-defined amplitude and frequency which may be controlled on demand by an alternating spin polarized current. These findings may be useful for the emerging field of antiferromagnetic topological spintronics, once vortex dynamics may be controlled by purely electric means.

## Full text

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## Figures

18 figures with captions in the complete paper: https://tomesphere.com/paper/1812.07537/full.md

## References

16 references — full list in the complete paper: https://tomesphere.com/paper/1812.07537/full.md

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Source: https://tomesphere.com/paper/1812.07537