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Low-energy switching of antiferromagnetic CuMnAs/GaP using sub-10 nanosecond current pulses

Omari, K. A.; Barton, L. X.; Amin, O.; Campion, R. P.; Rushforth, A. W.; Kent, A. J.; Wadley, P.; Edmonds, K. W.

Low-energy switching of antiferromagnetic CuMnAs/GaP using sub-10 nanosecond current pulses Thumbnail


Authors

K. A. Omari

L. X. Barton

O. Amin

ANTHONY KENT anthony.kent@nottingham.ac.uk
Professor of Physics

PETER WADLEY PETER.WADLEY@NOTTINGHAM.AC.UK
Assistant Professor in Experimental Condensed Matter Physics

KEVIN EDMONDS kevin.edmonds@nottingham.ac.uk
Associate Professor & Reader in Physics



Abstract

The recently discovered electrical-induced switching of antiferromagnetic (AF) materials that have spatial inversion asymmetry has enriched the field of spintronics immensely and opened the door for the concept of antiferromagnetic memory devices. CuMnAs is one promising AF material that exhibits such electrical switching ability and has been studied to switch using electrical pulses of length millisecond down to picosecond but with little focus on the nanosecond regime. We demonstrate here the switching of CuMnAs/GaP using nanosecond pulses. Our results showed that in the nanosecond regime, low-energy switching and a high readout signal with highly reproducible behavior down to a single pulse can be achieved. Moreover, a comparison of the two switching methods of orthogonal switching and polarity switching was made on the same device, and it showed distinct behaviors that can be exploited selectively for different future memory/ processing applications.

Citation

Omari, K. A., Barton, L. X., Amin, O., Campion, R. P., Rushforth, A. W., Kent, A. J., …Edmonds, K. W. (2020). Low-energy switching of antiferromagnetic CuMnAs/GaP using sub-10 nanosecond current pulses. Journal of Applied Physics, 127(19), Article 193906. https://doi.org/10.1063/5.0006183

Journal Article Type Article
Acceptance Date May 6, 2020
Online Publication Date May 20, 2020
Publication Date May 20, 2020
Deposit Date May 27, 2020
Publicly Available Date Mar 28, 2024
Journal Journal of Applied Physics
Print ISSN 0021-8979
Electronic ISSN 1089-7550
Publisher American Institute of Physics
Peer Reviewed Peer Reviewed
Volume 127
Issue 19
Article Number 193906
DOI https://doi.org/10.1063/5.0006183
Keywords General Physics and Astronomy
Public URL https://nottingham-repository.worktribe.com/output/4500902
Publisher URL https://aip.scitation.org/doi/10.1063/5.0006183
Additional Information Received: 2020-02-28; Accepted: 2020-05-06; Published: 2020-05-20

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