“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

“Spin torque switching with the giant spin Hall effect of tantalum.” L. Q. Liu, C.-F. Pai, Y. Li, H. W. Tseng, D. C. Ralph, and R. A. Buhrman.  Science 336, 555 (2012). https://doi.org/10.1126/science.1218197

“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