6533b82cfe1ef96bd128fee3
RESEARCH PRODUCT
Time-resolved buildup of twisted indirect exchange interaction in two-dimensional systems
Jamal BerakdarE. V. KirichenkoVitalii K. DugaevJózef BarnaśVladimir A. Stephanovichsubject
Friedel oscillationsPhysicsRKKY interactionCondensed matter physicsMagnetic moment02 engineering and technology021001 nanoscience & nanotechnologyCoupling (probability)01 natural sciencesOrientation (vector space)Magnetization0103 physical sciencesMoment (physics)Condensed Matter::Strongly Correlated Electrons010306 general physics0210 nano-technologySpin-½description
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 $x,\phantom{\rule{4pt}{0ex}}y$, 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-06-17 | Physical Review B |