Experimental equations of state for the rare gas solids

Piston-displacement equations of state (EOS) for the rare gas solids neon, argon, krypton and xenon have been determined to 20 kbar at temperatures from 4.2 K to the triple point in each case, with V(P,T) relations which are believed to be accurate to roughly 0.1 per cent. The present paper describes the results for the three heavier solids, argon, krypton and xenon, and indicates consistency between these results and other low pressure experiments at all temperatures. In particular, the individual isotherms can be represented by P(V) relations which are suggested by the form of the Lennard-Jones potential, the bulk moduli are only slightly temperature dependent at constant volume, and the data for the three solids appear to obey a reduced EOS both at T = 0 and near the triple point.