Magnon driven DW motion by DM

Magnon-Driven Domain-Wall Motion with the Dzyaloshinskii-Moriya Interaction.
Weiwei Wang, Maximilian Albert, Marijan Beg, Marc-Antonio Bisotti, Dmitri Chernyshenko, David Cortés-Ortuño, Ian Hawke, and Hans Fangohr
Phys. Rev. Lett. 114, 087203 (2015)

(a) Illustration of the head-to-head DW in the nanowire using red-blue opaque arrows. The translucent purple arrows represent a spin wave excitation. The DMI exerts a torque to change the DW tilt angle when spin waves pass through the DW. (b) DW profile using Eq. (5) with parameters A=8.78×10-12  J/m, K=1×105  J/m3, D=1.58×10-3  J/m2, K⊥=0 and Φ=0. The red dashed line shows the simulation data for mz with K⊥2=6×105  J/m3: the easy-plane anisotropy favors a reduced mz. (c) The dispersion relations inside and outside the DW