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Current-induced switching of antiferromagnetic order in Mn<sub>2</sub> Au from first principles

Current-induced switching of antiferromagnetic order in Mn2 Au from first principles

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SELZER, Severin, Leandro SALEMI, András DEÁK, Eszter SIMON, László SZUNYOGH, Peter M. OPPENEER, Ulrich NOWAK, 2022. Current-induced switching of antiferromagnetic order in Mn2 Au from first principles. In: Physical Review B. American Physical Society (APS). 105(17), 174416. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.105.174416

@article{Selzer2022Curre-57624, title={Current-induced switching of antiferromagnetic order in Mn2 Au from first principles}, year={2022}, doi={10.1103/PhysRevB.105.174416}, number={17}, volume={105}, issn={2469-9950}, journal={Physical Review B}, author={Selzer, Severin and Salemi, Leandro and Deák, András and Simon, Eszter and Szunyogh, László and Oppeneer, Peter M. and Nowak, Ulrich}, note={Article Number: 174416} }

2022-05-23T11:21:17Z 2022 Selzer, Severin Salemi, Leandro Current-induced switching of antiferromagnetic order in Mn<sub>2</sub> Au from first principles Simon, Eszter Simon, Eszter Deák, András It is well established that it is possible to switch certain antiferromagnets electrically, yet the interplay of Néel-spin-orbit torques and thermal activation is only poorly understood. Combining ab initio calculations and atomistic spin dynamics simulations we develop a multiscale model to study the current-induced switching in Mn2Au. We compute from first principles the strength and direction of the electrically induced magnetic moments, caused by the Rashba-Edelstein effect, and take these into account in atomistic spin dynamics simulations. Our simulations reveal the switching paths as well as the timescales for switching. The size of the induced moments, however, turns out to be insufficient to lead to fully deterministic switching. Instead, we find that a certain degree of thermal activation is required to help overcome the relevant energy barrier. terms-of-use eng Deák, András Oppeneer, Peter M. Szunyogh, László Szunyogh, László Nowak, Ulrich Oppeneer, Peter M. Selzer, Severin Nowak, Ulrich Salemi, Leandro 2022-05-23T11:21:17Z

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