2014/04/30 by Takahiro Chiba, G. Bauer, Gerrit E. W. Bauer +1
Engineering · Materials Science · Physics and Astronomy · #Atomic physics #Condensed matter physics #Coupling (piping) #Current (fluid) #Electron #Excitation #Ferromagnetic resonance #Ferromagnetism #Magnetic Properties and Applications #Magnetic field #Magnetic properties of thin films #Magnetization #Magnetization dynamics #Magneto-Optical Properties and Applications #Materials science #Physics #Resonance (particle physics) #Spin (aerodynamics) #Spin Hall effect #Spin current #Spin polarization #Spin pumping #Spin wave #Spintronics #Torque #Yttrium iron garnet #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevapplied.2.034003
published as Phys. Rev. Applied 2, 034003 (2014) · 5 pages, 4 figures
arxiv created 2014/08/20 · openalex publication_date 2014/09/03 · arxiv updated 2014/09/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Yttrium iron garnet (Y3Fe5O12, YIG) seems to be a prime material for spintronics, but the threshold currents associated with its current-induced spin-wave excitation are not well understood. Meanwhile, spin-torque ferromagnetic resonance (ST-FMR) is known to be a noninvasive probe of the spin-orbit coupling between currents and magnetization in ferromagnet/normal-metal bilayers. The authors' show that ST-FMR can be used to unveil the current-induced magnetization dynamics of magnetic insulators like YIG--a development that may pave the way for low-power devices using such materials.