%0 Journal Article %A Zhao, N %A Sud, A %A Sukegawa, H %A Komori, S %A Rogdakis, K %A Yamanoi, K %A Patchett, J %A Robinson, JWA %A Ciccarelli, C %A Kurebayashi, H %D 2021 %F discovery:10121776 %J Physical Review Materials %K Spin dynamics, Spin texture, Spin torque, Spintronics %N 1 %T Growth, strain, and spin-orbit torques in epitaxial Ni-Mn-Sb films sputtered on GaAs %U https://discovery.ucl.ac.uk/id/eprint/10121776/ %V 5 %X We report current-induced spin torques in epitaxial NiMnSb films on a commercially available epiready GaAs substrate. The NiMnSb was grown by cosputtering from three targets using optimized parameters. The films were processed into microscale bars to perform current-induced spin-torque measurements. Magnetic dynamics were excited by microwave currents, and electric voltages along the bars were measured to analyze the symmetry of the current-induced torques. We found that the extracted symmetry of the spin torques matches those expected from spin-orbit interaction in a tetragonally distorted half-Heusler crystal. Both fieldlike and dampinglike torques are observed in all the samples characterized, and the efficiency of the current-induced torques is comparable to that of ferromagnetic metal/heavy-metal bilayers. %Z This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.