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arXiv · 1208.4108

Reversal and Termination of Current-Induced Domain Wall Motion via Magnonic Spin-Transfer Torque

Jacob Linder
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Abstract

We investigate the domain wall dynamics of a ferromagnetic wire under the combined influence of a spin-polarized current and magnonic spin-transfer torque generated by an external field, taking also into account Rashba spin-orbit coupling interactions. It is demonstrated that current-induced motion of the domain wall may be completely reversed in an oscillatory fashion by applying a magnonic spin-transfer torque as long as the spin-wave velocity is sufficiently high. Moreover, we show that the motion of the domain wall may be fully terminated by means of the generation of spin-waves, suggesting the possibility to pin the domain-walls to predetermined locations. We also discuss how strong spin-orbit interactions modify these results.

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Jacob Linder. 2012-08-20. Reversal and Termination of Current-Induced Domain Wall Motion via Magnonic Spin-Transfer Torque. https://doi.org/10.1103/physrevb.86.054444

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