title: All-magnonic spin-transfer torque and domain wall propagation.
abstract: The spin-wave transportation through a transverse magnetic domain wall (DW) in a magnetic nanowire is studied. It is found that the 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.
authors: Physics Department, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong SAR, China.
authors: P
authors: P
authors: Yan
authors: X S
authors: XS
authors: Wang
authors: X R
authors: XR
authors: Wang