2019/02/28 by Matthew W. Daniels, Weichao Yu, Ran Cheng +2 · 1 citation
Materials Science · Physics and Astronomy · #Antiferromagnetism #Condensed matter physics #Electron #Ferromagnetism #Magnetic and transport properties of perovskites and related materials #Magnetic properties of thin films #Magnon #Pairing #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Semiclassical physics #Skyrmion #Spin (aerodynamics) #Spin Hall effect #Spin polarization #Spin wave #Superconductivity #Transverse plane #cond-mat.mes-hall #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.99.224433
published as Phys. Rev. B 99, 224433 (2019) · 11 pages, 7 figures
arxiv created 2019/05/30 · openalex publication_date 2019/06/28 · arxiv updated 2019/07/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.