Figure 1: Measurement of Gilbert damping in Py thin films via ferromagnetic resonance (Py thickness =30 nm).
From: Experimental Investigation of Temperature-Dependent Gilbert Damping in Permalloy Thin Films
(a) Ferromagnetic resonance spectra of the absorption for 30 nm Py thin films with TaN capping layer at gigahertz frequencies of 4, 6, 8, 10 and 12 GHz at 300 K after normalization by background subtraction. (b,c) The half linewidths as a function of the resonance frequencies at 300 K and 5 K respectively. The red solid lines indicate the fitted lines based on equation (3), where the Gilbert damping constants could be obtained.
