Direct-current modulation in spin torque ferromagnetic resonance spectrain permalloy/Pt bilayer films

摘要

Spin Hall effect is the conversion phenomenon from charge to spin currents in heavymetals due to the spin orbit interaction, and the conversion efficiency is called the spin Hallangle. It can be characterized by ferromagnetic resonance in ferromagnetic (FM)/heavy metal(HM) bilayer films, namely spin torque ferromagnetic resonance (ST-FMR) measurements.