Extended Data Figure 3: Experimental dependence of the unit cell volume of Os on pressure in comparison with EOSs reported in the literature.
From: The most incompressible metal osmium at static pressures above 750 gigapascals
The magenta line is from Occelli et al.3 (K300 = 421 GPa, K′ = 4.0) and the green line is from Cynn et al.4 (K300 = 463 GPa, K′ = 2.8). These data have been re-fitted using the ruby pressure scale as suggested in refs 20, 22 and references therein. Experimental data points (solid red dots) were fitted using the third-order Birch–Murnaghan EOS (blue line, V0 = 28.02(4) Å3 per unit cell, K300 = 399(6) GPa, K′ = 4.04(4)).
