Fig. 3: Photoinduced evolution of Bragg spots intensity.
From: Direct observation of nuclear reorganization driven by ultrafast spin transitions
a Short-time relative change in the intensity of select Bragg spots from t = −7 to 20 ps. b Global fitting of Bragg spots to show biexponential fit and monoexponential fit of relative intensity changes. c These intensity changes of the Bragg peaks are best modeled as a biexponential, with a (450 ± 23)-fs fast component and a (2.4 ± 0.4)-ps slow component. The solid lines represent the global fitting of the evolution of the intensity of the selected Bragg spots.
