41. B. Cui, H. Wu*, D. Li, S. A. Razavi, D. Wu, K. Wong, M. Chang, M. Gao, Y. Zuo, L. Xi*, K. L Wang, Field-Free Spin–Orbit Torque Switching of Perpendicular Magnetization by the Rashba Interface, ACS Appl. Mater. Inter. 11, 42, 39369 (2019)