Giant Extrinsic Spin Hall Effect in Platinum-Titanium Oxide Nanocomposite Films.

ABSTRACT: Although the spin Hall effect provides a pathway for efficient and fast current-induced manipulation of magnetization, application of spin-orbit torque magnetic random access memory with low power dissipation is still limited to spin Hall materials with low spin Hall angles or very high resistivities. This work reports a group of spin Hall materials, Pt_{1 -x} (TiO₂ )_x nanocomposites, that combines a giant spin Hall effect with a low resistivity. The spin Hall angle of Pt_{1 -x} (TiO₂ )_x in an yttrium iron garnet/Pt_{1 -x} (TiO₂ )_x double-layer heterostructure is estimated from a combination of ferromagnetic resonance, spin pumping, and inverse spin Hall experiments. A

SUBMITTER: Xu X 

PROVIDER: S-EPMC9165503 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature