Topological spin Hall effects and tunable skyrmion Hall effects in uniaxial antiferromagnetic insulators
arXiv:1902.09382 · doi:10.1103/PhysRevB.99.224433
Abstract
Recent advances in the physics of current-driven antiferromagnetic skyrmions have observed the absence of a Magnus force. We outline the symmetry reasons for this phenomenon, and show that this cancellation will fail in the case of spin polarized currents. Pairing micromagnetic simulations with semiclassical spin wave transport theory, we demonstrate that skyrmions produce a spin-polarized transverse magnon current, and that spin-polarized magnon currents can in turn produce transverse motion of antiferromagnetic skyrmions. We examine qualitative differences in the frequency dependence of the skyrmion Hall angle between ferromagnetic and antiferromagnetic cases, and close by proposing a simple skyrmion-based magnonic device for demultiplexing of spin channels.
11 pages, 7 figures
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Cited by in corpus (13)
- Fractional antiferromagnetic skyrmion lattice induced by anisotropic couplings
- Magnonic Hall Effect and Magnonic Holography of Hopfions
- Optical-controlled ultrafast dynamics of skyrmion in antiferromagnets
- Magnonic Analogue of Edelstein Effect in Antiferromagnetic Insulators
- Spin-wave-driven skyrmion dynamics in ferrimagnets: Effect of net angular momentum
- Recent progress in antiferromagnetic dynamics
- Curvilinear manipulation of polarized spin wave
- Magnon-driven dynamics of frustrated skyrmion in synthetic antiferromagnets: Effect of skyrmion precession
- Anatomy of spin wave driven magnetic texture motion via magnonic torques
- Signal detection based on the chaotic motion of an antiferromagnetic domain wall
- Moving skyrmions in Antiferromagnets by Sublattice Displacements
- Spin Wave Driven Skyrmions in a Bipartite Antiferromagnetic Lattice
- Tunable Ultrafast Dynamics of Antiferromagnetic Vortices in Nanoscale Dots