All-magnonic spin-transfer torque and domain wall propagation
  The spin wave transportation through a transverse magnetic domain wall (DW) in a magnetic nanowire is studied. It is found that spin wave passes through a DW without reflection. A magnon, the quantum of the spin wave, carries opposite spins on the two sides of the DW. As a result, there is a spin angular momentum transfer from the propagating magnons to the DW. This magnonic spin-transfer torque can efficiently drive a DW to propagate in the opposite direction to that of the spin wave. 
P. Yan, X. S. Wang, X. R. Wang
cond-mat.mes-hall cond-mat.mtrl-sci