title: Magnon-driven domain-wall motion with the Dzyaloshinskii-Moriya interaction.
abstract: We study domain-wall (DW) motion induced by spin waves (magnons) in the presence of the Dzyaloshinskii-Moriya interaction (DMI). The DMI exerts a torque on the DW when spin waves pass through the DW, and this torque represents a linear momentum exchange between the spin wave and the DW. Unlike angular momentum exchange between the DW and spin waves, linear momentum exchange leads to a rotation of the DW plane rather than a linear motion. In the presence of an effective easy plane anisotropy, this DMI induced linear momentum transfer mechanism is significantly more efficient than angular momentum transfer in moving the DW.
authors.affiliation: Engineering and the Environment, University of Southampton, SO17 1BJ Southampton, United Kingdom.
authors.forename: Weiwei
authors.initials: W
authors.lastname: Wang
authors.affiliation: Engineering and the Environment, University of Southampton, SO17 1BJ Southampton, United Kingdom.
authors.forename: Maximilian
authors.initials: M
authors.lastname: Albert
authors.affiliation: Engineering and the Environment, University of Southampton, SO17 1BJ Southampton, United Kingdom.
authors.forename: Marijan
authors.initials: M
authors.lastname: Beg
authors.affiliation: Engineering and the Environment, University of Southampton, SO17 1BJ Southampton, United Kingdom.
authors.forename: Marc-Antonio
authors.initials: MA
authors.lastname: Bisotti
authors.affiliation: Engineering and the Environment, University of Southampton, SO17 1BJ Southampton, United Kingdom.
authors.forename: Dmitri
authors.initials: D
authors.lastname: Chernyshenko
authors.affiliation: Engineering and the Environment, University of Southampton, SO17 1BJ Southampton, United Kingdom.
authors.forename: David
authors.initials: D
authors.lastname: Cortés-Ortuño
authors.affiliation: Mathematical Sciences, University of Southampton, SO17 1BJ Southampton, United Kingdom.
authors.forename: Ian
authors.initials: I
authors.lastname: Hawke
authors.affiliation: Engineering and the Environment, University of Southampton, SO17 1BJ Southampton, United Kingdom.
authors.forename: Hans
authors.initials: H
authors.lastname: Fangohr