TY - JOUR JF - Physical Review Materials VL - 5 ID - discovery10121776 UR - https://doi.org/10.1103/PhysRevMaterials.5.014413 Y1 - 2021/01// TI - Growth, strain, and spin-orbit torques in epitaxial Ni-Mn-Sb films sputtered on GaAs N1 - This version is the version of record. For information on re-use, please refer to the publisher?s terms and conditions. IS - 1 AV - public A1 - Zhao, N A1 - Sud, A A1 - Sukegawa, H A1 - Komori, S A1 - Rogdakis, K A1 - Yamanoi, K A1 - Patchett, J A1 - Robinson, JWA A1 - Ciccarelli, C A1 - Kurebayashi, H KW - Spin dynamics KW - Spin texture KW - Spin torque KW - Spintronics N2 - 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. ER -