Magnetic soliton transport over topological spin texture in chiral helimagnet with strong easy-plane anisotropy

Abstract

We show the existence of an isolated soliton excitation over the topological ground state configuration in chiral helimagnet with the Dzyaloshinskii-Moryia exchange and the strong easy-plane anisotropy. The magnetic field perpendicular to the helical axis stabilizes the kink crystal state which plays a role of "topological protectorate" for the traveling soliton with a definite handedness. To find new soliton solution, we use the Bäcklund transformation technique. It is pointed out that the traveling soliton carries the magnon density and a magnetic solition transport may be realized.

10 pages, 3 figures

References in corpus (2)

• Theory of spin current in chiral helimagnet
• Transport magnetic currents driven by moving kink crystal in chiral helimagnets

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