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Writing and reading antiferromagnetic Mn2Au by Néel spin-orbit torques and large anisotropic magnetoresistance

Writing and reading antiferromagnetic Mn2Au by Néel spin-orbit torques and large anisotropic magnetoresistance Thumbnail


Authors

S. Yu. Bodnar

L.

I. Turek

TOMAS JUNGWIRTH tomas.jungwirth@nottingham.ac.uk
Research Professor of Ferromagnetic Semiconductors

O. Gomonay

J. Sinova

A. A. Sapozhnik

H.-J. Elmers

M.

M. Jourdan



Abstract

Using antiferromagnets as active elements in spintronics requires the ability to manipulate and read-out the Néel vector orientation. Here we demonstrate for Mn2Au, a good conductor with a high ordering temperature suitable for applications, reproducible switching using current pulse generated bulk spin-orbit torques and read-out by magnetoresistance measurements. Reversible and consistent changes of the longitudinal resistance and planar Hall voltage of star-patterned epitaxial Mn2Au(001) thin films were generated by pulse current densities of ≃107 A/cm2. The symmetry of the torques agrees with theoretical predictions and a large read-out magnetoresistance effect of more than ≃6% is reproduced by ab initio transport calculations.

Citation

Bodnar, S. Y., Šmejkal, L., Turek, I., Jungwirth, T., Gomonay, O., Sinova, J., …Jourdan, M. (2018). Writing and reading antiferromagnetic Mn2Au by Néel spin-orbit torques and large anisotropic magnetoresistance. Nature Communications, 9(1), Article 348. https://doi.org/10.1038/s41467-017-02780-x

Journal Article Type Article
Acceptance Date Dec 26, 2017
Online Publication Date Jan 24, 2018
Publication Date 2018-12
Deposit Date Feb 27, 2020
Publicly Available Date Feb 27, 2020
Journal Nature Communications
Electronic ISSN 2041-1723
Publisher Nature Publishing Group
Peer Reviewed Peer Reviewed
Volume 9
Issue 1
Article Number 348
DOI https://doi.org/10.1038/s41467-017-02780-x
Keywords General Biochemistry, Genetics and Molecular Biology; General Physics and Astronomy; General Chemistry
Public URL https://nottingham-repository.worktribe.com/output/4045056
Publisher URL https://www.nature.com/articles/s41467-017-02780-x

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