Abstract
The dynamic behaviors of skyrmion in a nanofilm driven by spin waves have been numerically investigated by means of micromagnetic simulation. The results show that (i) the skyrmion shows a backward motion (towards the spin wave source) in the nanofilm with skyrmion Hall effect due to the spin wave scattering from the skyrmion; (ii) a fast (>100m/s) and periodic skyrmion motion can be achieved by introducing two spin wave sources to force the skyrmion move along the film edges; (iii) the velocity of the skyrmion motion depends on the amplitude and frequency of the driving magnetic fields as well as the nanofilm geometry, and the rotation sense of the skyrmion motion along the film edge depends on the topological number (Q=±1). The results might be a guidance for the design and development of future skyrmion-based devices in which skyrmions are used as information carriers.
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