Influence of the magnetic proximity effect on spin-orbit torque efficiencies in ferromagnet/platinum bilayers
Influence of the magnetic proximity effect on spin-orbit torque efficiencies in ferromagnet/platinum bilayers
Current-induced spin-orbit torques in ${\mathrm{Co}}_{2}\mathrm{FeAl}/\mathrm{Pt}$ ultrathin bilayers are studied using a magnetoresistive harmonic response technique, which distinguishes the dampinglike and fieldlike contributions. The presence of a temperature-dependent magnetic proximity effect is observed through the anomalous Hall and anisotropic magnetoresistances, which are enhanced at low temperatures for thin platinum thicknesses. The …