Writing and reading antiferromagnetic Mn2Au by Néel spin-orbit torques and large anisotropic magnetoresistance
Status PubMed-not-MEDLINE Language English Country Great Britain, England Media electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
29367633
PubMed Central
PMC5783935
DOI
10.1038/s41467-017-02780-x
PII: 10.1038/s41467-017-02780-x
Knihovny.cz E-resources
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
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.
Institut für Physik Johannes Gutenberg Universität Staudinger Weg 7 55128 Mainz Germany
School of Physics and Astronomy University of Nottingham University Park Nottingham NG7 2RD UK
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