Fig. 2: Results of Rietveld analyses for neutron diffraction patterns.
From: Ice Ic without stacking disorder by evacuating hydrogen from hydrogen hydrate
The patterns of a hydrogen hydrate, C2, and b ice Ic were obtained at 3.3 GPa and 300 K (at d in Fig. 1), and at 0 GPa and 130 K (in the path f → g). The inset diffraction pattern in b shows the expanded area for 111 reflections, shown as a box in the main figure, with logarithmic scale. The calculated peak positions of ice Ih are also shown as light blue lines with their indices in the inset. Structure models for C2 and ice Ic are also shown as insets in a and b, respectively.
