Spin-orbit torque (SOT) generated by current flow in platinum is employed to switch the magnetization of Fe₄GeTe₂ thin films. The magnitude and efficiency of the torque are quantitatively evaluated using spin-torque ferromagnetic resonance (ST-FMR).
The temperature-dependent magnetic properties of MnTe are characterized, and the crystal-axis-dependent spin torques in MnTe are evaluated via spin-torque ferromagnetic resonance (ST-FMR) using a coupled Fe layer.
Fe₅GeTe₂, a 2D van der Waals magnetic material, is exfoliated, transferred, and characterized in a cryogenic environment. Spin-orbit torques induced by current in the Pt/Fe₅GeTe₂ bilayer are quantitatively assessed using harmonic Hall measurements.