6533b86efe1ef96bd12cb3ab
RESEARCH PRODUCT
Magnetic state control via field-angle-selective switching in asymmetric rings
Daniel SchönkeMathias KläuiHermann StollHermann StollRobert M. Reevesubject
Magnetization dynamicsMaterials scienceSpintronicsCondensed matter physicsField (physics)530 PhysicsGeneral Physics and Astronomy02 engineering and technology021001 nanoscience & nanotechnologyPolarization (waves)530 Physik01 natural sciencesChirality (electromagnetism)Vortex stateMagnetic fieldFerromagnetism0103 physical sciences010306 general physics0210 nano-technologydescription
Switching the chirality of the vortex state in asymmetric ferromagnetic rings is interesting for multistate memory devices, logic elements, and stray-field-based rotation sensors. This study shows that different magnetic states can be configured by carefully tuning the magnetic field angle. Using time-resolved scanning electron microscopy with polarization analysis to image the magnetization dynamics of these rings, the authors detect competing switching pathways for certain field angles. These different pathways do not change the resulting magnetic states, though, which is advantageous for engineering reliable devices for a range of potential spintronic applications.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-09-10 |