Abstract
Momentum transfer from incoming magnons to a Bloch domain wall is calculated using one-dimensional continuum micromagnetic analysis. Due to the confinement of the wall in space, the dispersion relation of magnons is different from that of a single domain. This mismatch of dispersion relations can result in reflection of magnons upon incidence on the domain wall, whose direct consequence is a transfer of momentum between magnons and the domain wall. The corresponding counteraction force exerted on the wall can be used for the control of domain wall motion through magnonic linear-momentum transfer, in analogy with the spin transfer torque induced by magnonic angular-momentum transfer.
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