Ultrapressure equation of state of cerium metal to 208 GPa

Research was conducted to describe the static pressure compression of cerium metal to 208 GPa in a diamond anvil cell at room temperature. A synchrotron x-ray source and an internal copper pressure standard were used in the energy-dispersive x-ray diffraction analyses of cerium metal to 208 GPa. Results indicate that cerium is isoelectronic and isostructural with 5 f-band metal thorium at ultrapressures.