On the reversal, the scattering from the moving skyrmion may lead to decomposition of the linearly polarized magnon into two elliptically polarized magnon bands. More importantly, the elastic scattering theory and numerical results unveil the strong interdependence between linearly polarized magnons and skyrmion motion, suggesting the complicated dependence of skyrmion motion on the polarization nature of driving magnons. It is theoretically revealed that skyrmion Hall motion driven by circularly polarized magnons becomes inevitable generally, benefiting a comprehensive understanding of antiferromagnetic (AFM) skyrmion dynamics. In this paper, we investigate extensively the dynamics of skyrmion motion driven by magnons in an antiferromagnet using the collective coordinate theory, focusing on the effect of magnon polarization.
Specifically, magnon-driven skyrmion motion can be easily accessible in both metallic and insulating magnets and thus is highly preferred over electric current control, further for the ultralow energy consumption. Controllable magnetic skyrmion motion represents a highly relevant issue in preparing advanced skyrmion-based spintronic devices.
