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) Time dependence of out-of-plane FMR frequency shift Δf_r under various applied external magnetic fields H_ext, (b) the normalized Δf_r–time curves.