Hysteretic magnetization behaviour influenced by spin-currents in magnetic thin films with perpendicular anisotropy

摘要

While most recent studies of the spin-transfer torque effect mainly deal with magnetic structures with in-plane anisotropies and magnetizations, we theoretically investigate the magnetization behaviour driven by spin-currents in a trilayer structure with perpendicular anisotropy and magnetization using a modified Landau-Lifshitz-Gilbert equation. This study is particularly conducted for hysteresis loop measurements under spin-currents and current-voltage measurements in the presence of external magnetic fields, by which the unique magnetization rotations and reversals associated with the spin-transfer torque in the magnetic configuration can be captured.