Skyrmion motion induced by spin-waves in magnetic nanotubes

Abstract

In this study, we investigate the skyrmion motion driven by spin waves in magnetic nanotubes through micromagnetic simulations. Our key contributions include demonstrating the stability and enhanced mobility of skyrmions in the edgeless nanotube geometry, which prevents destruction at boundaries—a common issue in planar geometries. We explore the influence of the damping coefficient, amplitude, and frequency of microwaves on skyrmion dynamics, revealing a non-uniform velocity profile characterized by acceleration and deceleration phases. Our results show that the skyrmion Hall effect is significantly amplified in nanotubes compared to planar models, with specific dependencies on the spin-wave parameters. Notably, the skyrmion Hall angle remains consistent across varying damping coefficients and frequencies but changes when the driving field amplitude exceeds a threshold value. These findings provide insights into skyrmion manipulation for spintronic applications, highlighting the potential for high-speed and efficient information transport in magnonic devices.