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.

Department of Condensed Matter Physics Faculty of Mathematics and Physics Charles University Ke Karlovu 5 12116 Praha 2 Czech Republic

Institut für Physik Johannes Gutenberg Universität Staudinger Weg 7 55128 Mainz Germany

Institute of Physics Academy of Sciences of the Czech Republic Cukrovarnicka 10 162 00 Praha 6 Czech Republic

School of Physics and Astronomy University of Nottingham University Park Nottingham NG7 2RD UK

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