Fig. 3
From: Crystalline polymeric carbon dioxide stable at megabar pressures
Pressure dependence of lattice parameters and formula unit volume. The data for CO2-V phase are compared to the literature experimental (scattered points) and theory data (dashed lines, cf. the inset). The fitted equations of states are indicated by solid lines. The experimental points determined in this work are presented with the bidirectional error bars, representing the uncertainties of lattice parameters and volume determined as obtained from the profile fitting, and ± 5 GPa uncertainty of pressure determination (see Methods section)
