Fast current-induced motion of a transverse domain wall induced by interfacial Dzyaloshinskii–Moriya interaction

•Theoretical study on the effect of the interfacial Dzyaloshinskii–Moriya interaction on transverse domain wall motion.•Domain wall distortion induced by the interfacial Dzyaloshinskii–Moriya interaction and the damping-like spin–orbit torque.•This allows a few hundreds m/s of domain wall velocity at the current density of 107 A/cm2.

Based on a theoretical study, we show that the interfacial Dzyaloshinskii–Moriya interaction results in very efficient current-induced manipulation of a transverse domain wall in magnetic nanowires. The efficient domain wall motion is caused by combined effects of the domain wall distortion induced by the interfacial Dzyaloshinskii–Moriya interaction and the damping-like spin–orbit spin transfer torque. We find that with reasonable parameters, the domain wall velocity reaches a few hundreds m/s at the current density of 107 A/cm2, which has never been achieved before. Our result will be beneficial for low-power operation of domain wall devices.