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) Normalized time dependence of FVMSW frequency shift Δf_FVMSW with various H_ext. The inset is a schematic of the FVMSW measurement configuration. (b) Part of the FVMSW transmission spectra (imaginary part of S₂₁) measured in out-of-plane external magnetic field H_ext = 4 kOe at various time.