Abstract

Spin–orbit torque (SOT) switching of the L10-FePt single layer has attracted a lot of interest in recent times. Herein, we report the tunability of switching performance in L10-FePt films by Mn doping. The results show that field-free switching can be realized by Mn doping, and the switching performance exhibits an angular dependence with respect to the crystal axis. Such switching behavior can be attributed to cone anisotropy induced by Mn doping. In addition, the SOT efficiency can be enhanced by Mn doping. These results can deepen our understanding of the SOT-induced switching of L10-FePt films.

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