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Reversal and termination of current-induced domain wall motion via magnonic spin-transfer torque

Linder, Jacob
Journal article, Peer reviewed
Accepted version
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URI
http://hdl.handle.net/11250/2457197
Date
2012
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  • Publikasjoner fra CRIStin - NTNU [35008]
Original version
Physical Review B. Condensed Matter and Materials Physics. 2012, 86 (5), .   10.1103/PhysRevB.86.054444
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.
Publisher
American Physical Society
Journal
Physical Review B. Condensed Matter and Materials Physics

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