%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.