Observation of Out-of-Plane Antidamping Torque at the Platinum/Permalloy Interface.

ABSTRACT: Achieving electrical control of ferromagnets without magnetic fields is crucial for the dense integration of nanodevices in modern memory and computing technologies. Current methods using spin orbit torques from the spin Hall effect and interfacial Rashba effect are limited to in-plane magnetized ferromagnets. Out-of-plane antidamping torque is essential for the electrical only control of ferromagnets with perpendicular magnetic anisotropy. In this work, we report the observation of out-of-plane polarized spin currents in platinum/permalloy bilayers, linked to interfacial perpendicular magnetic anisotropy at the interface between two metallic layers, as revealed by polarized neutron reflectometry. In-plane angle-resolved spin-torque ferromagnetic resonance measurements characterized the ou

SUBMITTER: Mohan JR 

PROVIDER: S-EPMC11843535 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature