Figure 4: Microwave response changes by the fm-sweep for a given initial state.
From: Adaptive microwave impedance memory effect in a ferromagnetic insulator
(a–d) The changes of the Re[ΔS21,p] (a,b) and Im[ΔS21,p] (c,d) as a function of fm measured during the initial fm-sweep (a,c) and averaged (10-times; b,d) after the initial fm-sweep, where the fm was swept from 0.1 to 3.0 GHz (forward) and from 3.0 to 0.1 GHz (backward) continuously without refreshing the initial state. (e,f) The changes of the Re[ΔS21,p] at fp=1.0 GHz and Im[ΔS21,p] at fp=1.2 GHz as a function of sweep index. (g,h) Line-profiles of Re[ΔS21,p] and Im[ΔS21,p] for various fm (black: 0.1 GHz; red: 1.0 GHz; green: 1.2 GHz; blue: 1.4 GHz; cyan: 2.0 GHz). (i) N-FMR frequencies calculated from Re[ΔS21,p] (black) and Im[ΔS21,p] (red) line profiles for each fm. (j) The changes of the Re[ΔS21,p] at fp=1.0 GHz (black), 1.2 GHz (red), and 1.5 GHz (blue) as a function of fm, where the changes were normalized to their maximum values.
