Atom-in-jellium equations of state for high Z elements

We have previously reported atom-in-jellium (AJ) predictions of the equation of state (EOS) and melt locus of low- and mid-Z elements. Here we report equivalent results for a selection of high Z elements that are also under experimental investigation at high energy density facilities. In comparison with previous EOS models for these substances, based on Thomas-Fermi theory, the shock Hugoniot exhibits structures corresponding to the ionization of successive electron shells. Proportionately, the difference from TF theory is less than was found for lower Z elements, though it can still amount to a factor ~2 in pressure as each ionization occurs. The broad trend of the Hugoniot is however closer to TF predictions than was observed at lower Z. The cold curve and ambient isochore deduced from AJ calculations is generally quite close to the corresponding TF calculation.