First-order reversal curve investigated magnetization switching in Pd/Co/Pd wedge film

Li Yan^{1, 2}, He Wei^{1, †}, Sun Rui^{1, 2}, Gong Zi-Zhao^{1, 2}, Li Na^{1, 2}, Gul Qeemat^{1, 2}, Zhang Xiang-Qun¹, Cheng Zhao-Hua^{1, 2, ‡}

(color online) (a) Hysteresis loops of Kerr rotation at different wedge locations. (b) Multi-jump loops corresponding to Co thickness values of 0.56 nm, 0.7 nm, and 0.84 nm, respectively. Gray dashed lines represent guidance of partially overlapped jumps.