Room-Temperature Ferromagnetism with Strong Spin-Orbit Coupling Achieved in CaRuO₃ Interfacial Phase via Magnetic Proximity Effect.

ABSTRACT: Recently, theoretical and experimental research predicted that ferromagnets with strong spin-orbit coupling (SOC) could serve as spin sources with dramatically enhanced spin-orbit torque (SOT) efficiency due to the combination of spin Hall effect and anomalous Hall effect (AHE), presenting potential advantages over conventional nonmagnetic heavy metals. However, materials with a strong SOC and room-temperature ferromagnetism are rare. Here, we report on a ferromagnetic (FM) interfacial phase with Curie temperature exceeding 300 K in the heavy transition-metal oxide CaRuO₃, in proximity to La_0.67Sr_0.33MnO₃. Electron energy loss and polarized neutron reflectometry spectra reveal the strong charge transfer from Ru to Mn at the interface, triggering

SUBMITTER: Zheng J 

PROVIDER: S-EPMC11603879 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature