Magnon dynamics in a skyrmion-textured domain wall of antiferromagnets
Seungho Lee, Kouki Nakata, Oleg Tchernyshyov, Se Kwon Kim
Abstract
The novel interaction of a skyrmion-textured domain wall and magnons is investigated theoretically for 2D antiferromagnets with the aid of supersymmetric quantum mechanics. The scattering of propagating magnons at the domain wall is found to be governed by the emergent magnetic field coming from the skyrmion texture of the domain wall, which gives rise to the tunable spin Nernst effect. The exact theoretical analysis also yields new nonreciprocal magnons, bound to the topologically textured domain wall.
Topics & Concepts
SkyrmionMagnonPhysicsDynamics (music)Domain (mathematical analysis)Domain wall (magnetism)Condensed matter physicsFerromagnetismQuantum mechanicsMagnetic fieldMagnetizationMathematical analysisMathematicsAcousticsMagnetic properties of thin filmsPhysics of Superconductivity and MagnetismAdvanced Condensed Matter Physics