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arXiv · 1301.0389

Nonequilibrium Rashba field driven domain wall motion in ferromagnetic nanowires

Martin Stier·Reinhold Egger·Michael Thorwart
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Abstract

We study the effects of spin-orbit interaction (SOI) on the current-induced motion of a magnetic (Bloch) domain wall in ultrathin ferromagnetic nanowires. The conspiracy of spin relaxation and SOI is shown to generate a novel strong nonequilibrium Rashba field, which is dominant even for moderate SOI. This field causes intricate spin precession and a transition from translatory to oscillatory wall dynamics with increasing SOI. We show that current pulses of different lengths can efficiently be used to control the domain wall motion.

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Martin Stier, Reinhold Egger, Michael Thorwart. 2013-01-03. Nonequilibrium Rashba field driven domain wall motion in ferromagnetic nanowires. https://doi.org/10.1103/physrevb.87.184415

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