Temperature assistance of electric field-controlled spin-orbit torque-based magnetization switching in PMN-PT/FePt heterostructures.

ABSTRACT: We report the temperature assistance of electric field (E-field)-controlled spin-orbit torque (SOT)-based magnetization switching of L1₀-FePt films grown on a PbMg_1/3Nb_2/3O₃-PbTiO₃ (PMN-PT) (011) substrate, which generates considerable strain via piezoelectric effects of the PMN-PT substrate under E-field. Owing to large strain-induced effective field and weak perpendicular magnetic anisotropy (PMA) at a high temperature, E-field controls the PMA- and SOT-based magnetization switching more effectively. Driven by E-field, magnetization switching is detected by a magnetic optical Kerr (MOKE) microscope under a fixed perpendicular magnetic field. Furthermore, E-field modulates change of anomalous Hall resistance regularly, which en

SUBMITTER: Guo Q 

PROVIDER: S-EPMC8697033 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature