Thermal contribution to the spin-orbit torque control of the antiferromagnetic order in the Weyl semimetal Mn₃Sn

The control of antiferromagnetic order by spin-orbit torque (SOT) has become an intense field of research due to potential applications in memory devices operable at picosecond timescales [1, 2]. Recent studies on the bidirectional SOT switching of the chiral antiferromagnetic order in the Weyl semimetal Mn₃Sn [3, 4] have provided much insight into the electrical manipulation of antiferromagnetism [5, 6]. In addition to the spin torque, it has been proposed that Joule heating from the applied current plays an important role in the switching process [7, 8]. In this presentation, we will examine how the response to SOT of the antiferromagnetic order in Mn₃Sn is affected by the Joule heating present in the system.

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