“Central role of domain wall depinning for perpendicular magnetization switching driven by spin torque from the spin Hall effect.” O. J. Lee, L. Q. Liu, C. F. Pai, Y. Li, H. W. Tseng, P. G. Gowtham, J. P. Park, D. C. Ralph, R. A. Buhrman, Phys Rev B 89, (Jan 28, 2014).https://doi.org/10.1103/PhysRevB.89.024418

“Strong perpendicular magnetic anisotropy energy density at Fe alloy/HfO2 interfaces.” Y.Ou, D. C. Ralph, R. A. Buhrman, Applied Physics Letters 110, 192403, (2017). http://dx.doi.org/10.1063/1.4983170

“Dependence of the efficiency of spin Hall torque on the transparency of Pt/ferromagnetic layer interfaces.” C.-F. Pai, Y. Ou, L. H. Vilela-Leao, D. C. Ralph, and R. A. Buhrman, Physical Review B 92, 064426 (2015). https://doi.org/10.1103/PhysRevB.92.064426