Skyrmions: Dynamics and applications

Skyrmionics stands as one of physics' most promising areas, with the
potential to innovate and develop future devices and technologies.
Magnetic skyrmions are nanoscale magnetic whirls that are topologically
protected and can be moved by currents, leading to the prediction of
several applications. Its topological charge leads to high stability;
however, it also leads to the skyrmion Hall effect. From memory storage
devices, like the racetrack memory, to computing devices, like
artificial neurons, this shortcoming is one of the primary reasons why
skyrmion-based spintronic devices have yet to be achieved. Here, we
study the motion of skyrmions with different topological charges and
helicities. Using an effective center-of-mass description of these
magnetic quasiparticles, namely, the Thiele equation, we analyze their
dynamics under different gradient landscapes and interactions aiming to
suppress or take advantage of the skyrmion Hall effect. Following a
neuroscience approach, we also discuss possible applications in
neuromorphic computing.