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△ [20a-131-1] Observation of unconventional spin-orbit torque in Py/Pt/Co trilayer structure
Keywords:Spin-Orbit torque, Metallic multilayer films, Interfacial scattering
In this presentaion, we investigated the current-induced spin-orbit torque in the system of Py/Pt/Co trilayer structure which perpendicularly magnetized Pt/Co system is deposited on the in-plane magnetized Py layer. Through the Hall measurement using ac-current, we observed an unconeventional torque acting on Py layer which the polarity of the torque depends on the magnetization vector of Co layer.