The THz Spectrum of Density Fluctuations of Water: The Viscoelastic Regime

Figure 18

The extrapolated relaxation timescale measured by IXS in [40] for several prototypical fluids as on neon (black dots), nitrogen (olive dots), ammonia (red dots), and water (blue dots). The relaxation times of ammonia extracted from the IXS work in [41] are also reported for comparison as open dots.