Generalized spin-orbit torques in two-dimensional ferromagnets with spin-orbit coupling Chao Yang, Zheng-Chuan Wang, Qing-Rong Zheng and Gang Su Eur. Phys. J. B, 92 6 (2019) 136 Published online: 24 June 2019 DOI: 10.1140/epjb/e2019-100147-y