Figure 3
From: Hydrogen mobility in the lightest reversible metal hydride, LiBeH3
Symbols: Q-dependence of the Lorentzian term describing the QENS broadening for BeH2 (a) and LiBeH3 (b). The former exhibits a pronounced increase at low Q and a weak maximum in the mid-Q range and thus can be fitted with a jump-diffusion model (solid lines). For the latter, average values over the Q-range are taken (solid lines), since the largely Q-independent data are indicative of localized jumps.
