The Fe-H system has been investigated by combined x-ray diffraction studies and total
energy calculations at pressures up to 136 GPa. The experiments involve laser annealing of …

The insulator-metal transition in hydrogen is one of the most outstanding problems in
condensed-matter physics. The high-pressure metallic phase is now predicted to be liquid …

Experimental studies of compressed matter are now routinely conducted at pressures
exceeding 1 mln atm (100 GPa) and occasionally at pressures greater than 10 mln atm (1 …

The computational and experimental exploration of the phase diagrams of binary hydrides
under high pressure has uncovered phases with novel stoichiometries and structures, some …

Two new polyhydrides of calcium have been synthesized at high pressures and high
temperatures and characterized by Raman spectroscopy, infrared spectroscopy, and …

We have performed in situ synchrotron x-ray diffraction studies of the iridium-hydrogen
system up to 125 GPa. At 55 GPa, a phase transition in the metal lattice from the fcc to a …

The structures of the strontium polyhydrides, SrH n with n> 2, under pressure are studied
using evolutionary algorithms coupled with density functional theory calculations. A number …

Tritium retention in plasma facing materials such as tungsten is a major concern for future
fusion reactors. During ITER operating mode, the reactor could generate tritiated tungsten …

High pressure induces unexpected chemical and physical properties in materials. For
example, hydrogen-rich compounds under pressure have recently gained much attention as …

The lithium–palladium and lithium–palladium–hydrogen systems are investigated at high
pressures at and above room temperature. Two novel lithium–palladium compounds are …