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 …

A systematic structure search in the La–H and Y–H systems under pressure reveals some
hydrogen-rich structures with intriguing electronic properties. For example, LaH10 is found …

Rare-earth polyhydrides formed under pressure are promising conventional
superconductors, with the critical temperature T c in compressed LaH 10 almost reaching …

We use first-principles calculations to study structural, vibrational, and superconducting
properties of H 2 S at pressures P≥ 200 GPa. The inclusion of zero-point energy leads to …

Harmonic calculations based on density-functional theory are generally the method of
choice for the description of phonon spectra of metals and insulators. The inclusion of …

Palladium hydrides display the largest isotope effect anomaly known in the literature.
Replacement of hydrogen with the heavier isotopes leads to higher superconducting …

High-temperature superconductivity remains a focus of experimental and theoretical
research. Hydrogen sulfide (H2S) has been reported to be superconducting at high …

Hydrogen, the lightest element in the periodic table, has been predicted to metalize under
extreme compression. Metallic hydrogen is believed to be a room-temperature …

Observation of high-temperature superconductivity in compressed sulfur hydrides has
generated an irresistible wave of searches for new hydrogen-containing superconductors …