Effect of interface magnetization depinning on the frequency shift of ferromagnetic and spin wave resonance in YIG/GGG films

Lin Fanqing¹, Zhang Shouheng¹, Zhao Guoxia¹, Li Hongfei², Zong Weihua², Li Shandong^{1, †}

(a) A schematic drawing for the principle of the relaxation of FMR and spin waves in the external field normal to the YIG film. (b) Out-of-plane FMR frequency f_r as a function of external magnetic field H_ext.