Thickness-dependent magnetic anisotropy in obliquely deposited Fe(001)/Pd thin film bilayers probed by VNA-FMR

Gul Qeemat^{1, 2}, He Wei¹, Li Yan^{1, 2}, Sun Rui^{1, 2}, Li Na^{1, 2}, Yang Xu^{1, 2}, Li Yang^{1, 2}, Gong Zi-Zhao^{1, 2}, Xie Zong-Kai^{1, 2}, Zhang Xiang-Qun¹, Cheng Zhao-Hua^{1, 2, 3, †}

(a) Sample stacking and the measurement configuration. Ferromagnetic resonance field H_r as a function of the in-plane azimuthal angle φ H of the samples with Fe films of (b) 50 ML, (c) 45 ML, and (d) 32 ML thicknesses and 0°, 45°, and 55° deposition angles, respectively. Measurements were carried out at 16 GHz at room temperature. The red lines are theoretical fits to the experimental data using the Kittel equation.