Fig. 5: Quasielastic neutron scattering analysis.
a Elastic scattering intensity scans for the wet samples normalized by the samples’ mass and with the datapoints at T = 20 K normalized to unity. The data is summed over Q = 0.3–1.1 Å−1. b QENS spectra collected at 300 K presented as the dynamic scattering functions normalized to unity. Q-dependences of \({A}_{0}\)(Q) (c) and p (d) as obtained by fitting the QENS data with Eqs. (4) and (5). Q2-dependences of \(\Gamma\)B (Q) (e) and \(\Gamma\)N (Q) (f) presented together with the correspondent fits with Eq. (6). The values obtained for D and τ0 are also shown in the figure. In (a) and (b), the error bars (mostly not visible since these are within the same dimensions of the symbols) depict the experimental uncertainty as defined by Poisson statistics, \(\delta \left(N\right)=\,\sqrt{N}\), where N is the number of counts in a given frequency bin and, therefore, the fractional error is \(\frac{\delta (N)}{N}=\frac{1}{\sqrt{N}}\). In (c–f), the error bars indicate the standard deviations of the parameters determined by fitting the data with Eqs. (4–6).
