Spin transport through a DW

All-magnonic spin-transfer torque and domain wall propagation.
P. Yan, X. S. Wang, and X. R. Wang
Arxiv CondMat 1106.4382

Illustration of a transverse DW structure whose m is denoted by the (blue) arrows. The spin wave
(magnon) is a small amplitude precession of m (represented by the red cones) around the static DW.