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.
Bibliographical noteFunding Information:
This work was supported by the NRF (Grant No. 2013R1A2A2A01013188 , 2011-0028163 , and NRF- 2012R1A1A1041590 ) and the Pioneer Research Center Program of MSIP/NRF ( 2011-0027905 ).
© 2015 Elsevier B.V.
- Domain wall motion
- Dzyaloshinskii-Moriya interaction
- Spin-orbit spin transfer torque
ASJC Scopus subject areas
- General Materials Science
- General Physics and Astronomy