Curvilinear phenomena in magnetization dynamics and in stray field

In recent years, curvilinear magnetism is captivating due to the broad range of phenomena emerging in curved geometries that are appealing for developments in stretchable and magnetoelectric devices, microrobots, sensors, flexible memories and nanoelectronics [1-5].
These phenomena encompass exchange- and Dzyaloshinskii-Moriya (DMI)-induced interactions that typically result in topological magnetization patterning in thin shells, symmetry breaking, and pinning of domain walls [1-9]. Less attention is been paid though to the role of the curvilinear effects in the stray field, and in the magnetization dynamics [4]. For application development, spin-orbit torques provide an alternative way to manipulate magnetic domain walls and magnetization [10, 11] with reduced power consumption.
Here we present first results in stray field calculation in curvilinear geometries, and domain wall tilts in single 100 nm wide 2 nm thin periodically corrugated strips of CrOx/Co/Pt with average curvature of 0.06 nm-1.

References

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