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“Origin of fieldlike spin-orbit torques in heavy metal/ferromagnet/oxide thin film heterostructures, “ Y. X. Ou, C. F. Pai, S. J. Shi, D. C. Ralph, and R. A. Buhrman, Physical Review B 94 (2016), Artn 140414, https://doi.org/10.1103/PhysRevB.94.140414