6533b821fe1ef96bd127c0f8
RESEARCH PRODUCT
Piezo-electrical control of gyration dynamics of magnetic vortices
Michael FoersterTetsuya HajiriM. FilianinaMathias KläuiLorenzo BaldratiLucia AballeKai LitziusKai Litziussubject
010302 applied physicsPhysicsPhysics and Astronomy (miscellaneous)Condensed matter physicsMagnetostriction02 engineering and technology021001 nanoscience & nanotechnology01 natural sciencesGyrationVortex stateVortexCondensed Matter::Materials ScienceMagnetic anisotropyCondensed Matter::SuperconductivityElectric field0103 physical sciencesOrbit (dynamics)0210 nano-technologyAnisotropydescription
In this work, we first statically image the electrically controlled magnetostatic configuration of magnetic vortex states and then we dynamically image the time-resolved vortex core gyration tuned by electric fields. We demonstrate the manipulation of the vortex core gyration orbit by engineering the magnetic anisotropies. We achieve this by electric fields in a synthetic heterostructure consisting of a piezoelement coupled with magnetostrictive microstructures, where the magnetic anisotropy can be controlled by strain. We directly show the strong impact of the tailored anisotropy on the static shape of the vortex state and the dynamic vortex core orbit. The results demonstrate the possibility of using electric field induced strain as a low-power approach to tune the dynamical response of magnetic vortices.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-08-05 | Applied Physics Letters |