6533b7d9fe1ef96bd126b9c0
RESEARCH PRODUCT
Engineering the dynamics of topological spin textures by anisotropic spin-orbit torques
Yuriy MokrousovYuriy MokrousovFrank FreimuthMathias KläuiJan-philipp HankeJan-philipp HankeBertrand DupéBertrand DupéJairo Sinovasubject
PhysicsCondensed Matter - Materials ScienceCondensed Matter - Mesoscale and Nanoscale Physics530 PhysicsSkyrmionMaterials Science (cond-mat.mtrl-sci)FOS: Physical sciences02 engineering and technology021001 nanoscience & nanotechnologyTopology530 Physik01 natural sciencesSymmetry (physics)Deflection (physics)Hall effect0103 physical sciencesMesoscale and Nanoscale Physics (cond-mat.mes-hall)Orbit (dynamics)ddc:530Electric current010306 general physics0210 nano-technologyAnisotropySpin-½description
Integrating topologically stabilized magnetic textures such as skyrmions as nanoscale information carriers into future technologies requires the reliable control by electric currents. Here, we uncover that the relevant skyrmion Hall effect, which describes the deflection of moving skyrmions from the current flow direction, acquires important corrections owing to anisotropic spin-orbit torques that alter the dynamics of topological spin structures. Thereby, we propose a viable means for manipulating the current-induced motion of skyrmions and antiskyrmions. Based on these insights, we demonstrate by first-principles calculations and symmetry arguments that the motion of spin textures can be tailored by materials design in magnetic multilayers of Ir/Co/Pt and Au/Co/Pt. Our work advances the understanding of the current-induced dynamics of these magnetic textures, which underlies a plethora of memory and logic applications.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-01-01 |