Two hydrogen-rich materials, H 3 S and LaH 10, synthesized at megabar pressures, have
revolutionized the field of condensed matter physics providing the first glimpse to the …

Pressure has long been recognized as a fundamental thermodynamic variable but its
application was previously limited by the available pressure vessels and probes. The …

We propose a methodology for crystal structure prediction that is based on the evolutionary
algorithm USPEX and the machine-learning interatomic potentials actively learning on-the …

Under pressure, metals exhibit increasingly shorter interatomic distances. Intuitively, this
response is expected to be accompanied by an increase in the widths of the valence and …

Helium is generally understood to be chemically inert and this is due to its extremely stable
closed-shell electronic configuration, zero electron affinity and an unsurpassed ionization …

The ruby luminescence method is widely used for pressure measurement in the diamond
anvil cell and other optically transparent pressure cells. With this application in mind, we …

Pressure and temperature influence all properties of a chemical system. And determine the
fate of a chemical reaction. Gases—and phase and chemical equilibria involving gaseous …

Lithium (Li) is a prototypical simple metal at ambient conditions, but exhibits remarkable
changes in structural and electronic properties under compression. There has been intense …

Pressure profoundly alters all states of matter. The symbiotic development of ultrahigh-
pressure diamond anvil cells, to compress samples to sustainable multi-megabar pressures; …

Recent theoretical and experimental studies have produced several unusual and interesting
results on dense lithium, the first metal in the periodic table. These include the deviation from …