Study of magnetization reversal and anisotropy of single crystalline ultrathin Fe/MgO (001) film by magneto-optic Kerr effect

Zhang Miao-Ling¹, Ye Jun¹, Liu Rui¹, Mi Shu¹, Xie Yong¹, Liu Hao-Liang², Haesendonck Chris Van², Chen Zi-Yu^{1, †,}

Measured angular dependences of normalized remanence M_r/M_s (a) and coercivity H_C (b) on field orientation. The hysteresis loops with (c) and without (d) the contribution of the quadratic magneto–optic effect at φ_H = 31°, where φ_H is the angle between the applied positive field and Fe [001] axis; the modified angular dependences of normalized remanence M_r/M_s (e) and coercivity H_C (f) on field orientation. The unit 1 Oe = 79.5775 A·m⁻¹.