Generation of Magnon Orbital Angular Momentum by a Skyrmion-Textured Domain Wall in a Ferromagnetic Nanotube

We develop a theory for the dynamics of magnon on top domain wall in ferromagnetic nanotube. Due to geometry sample, walls are classified by Skyrmion charge which counts winding number magnetic textures. The with non-zero generates an emergent field magnons, exerts Lorentz force moving magnons and thereby deflects their trajectories. This deflection is manifested as generation finite orbital angular momentum that traverses wall. obtain exact solutions Skyrmion-textured also scattering properties aid supersymmetric quantum mechanics. show there critical wavenumber total reflection it discretized Our results momenta textures can be intertwined curved geometry.