Optimization of spin Hall magnetoresistance in heavy-metal/ferromagnetic-metal bilayers.

ABSTRACT: We present experimental data and their theoretical description on spin Hall magnetoresistance (SMR) in bilayers consisting of a heavy metal (H) coupled to in-plane magnetized ferromagnetic metal (F), and determine contributions to the magnetoresistance due to SMR and anisotropic magnetoresistance (AMR) in five different bilayer systems: [Formula: see text], [Formula: see text], [Formula: see text], W/Co, and Co/Pt. The devices used for experiments have different interfacial properties due to either amorphous or crystalline structures of constitutent layers. To determine magnetoresistance contributions and to allow for optimization, the AMR is explicitly included in the diffusion transport equations in the ferromagnets. The results allow determination of different contributions to the magne

SUBMITTER: Karwacki L 

PROVIDER: S-EPMC7329912 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature