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, †,}

Simulated hysteresis loops at φ_H = − 1° (a), 44° (b), and 46° (c), with the simulating parameters being M_s = 1.76 × 10³ Gs (1 Gs = 10⁻⁴ T), H = 1000 Oe, K_u₁ = 1.6 × 10³ J/m³, K_u₂ = 7.5 × 10³ J/m³, K₁ = 5.6 × 10⁴ J/m³, α = 0.9, β = − 0.06822, γ = − 0.2847. α, β, and γ are the coefficients of the magneto–optic terms.