Stephanovich V. A., E. V. Kirichenko E. V., Dugaev V. K., Barnaś J., and Berakdar J.

We study theoretically the time-domain dynamics of the spin-dependent Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between driven magnetic impurities localized in a spin-orbit-coupled two-dimensional system. Particular attention is given to the influence of the spin-orbit coupling (SOC) on the system's dynamical response to a time-dependent precessional motion of the localized magnetic moment. We show that, via the RKKY mechanism, a flip of the spin z component of one localized moment affects all x,y, and z spin components of the other localized moment. The Friedel oscillations and the transient spin current triggered by the time-varying localized spin depend strongly on the orientation of the spin with respect to the two-dimensional structure. Our results demonstrate how the dynamic interplay between SOC and the RKKY interaction can be used to manipulate and fine-tune the characteristics of impurity spin reversal and to control the generated spin current and the local magnetization.

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