Figure 2
From: Phase stability and electronic structure of iridium metal at the megabar range

Experimental pressure-volume curve obtained by our XRD experiments (black points) and shock-waves data (ref.14) (orange squares). The 3rd order EoS are represented by solid lines: red line for our data, blue line for the values calculated by quantum molecular dynamics (QMD) (ref.9) and green line for the data obtained by Cerenius and Dubrovinsky (ref.7).