Abstract:
The structural, electron, phonon, and other characteristics of the metallic normal phase of hydrogen at a pressure of 500 GPa are calculated by an ab initio mathematical simulation. It is shown that metallic hydrogen having a lattice with the I41/amd symmetry is a stable phase at a high hydrostatic compression pressure. The resulting structure has the spectrum of phonons stable with respect to the decay.
Citation:
N. N. Degtyarenko, E. A. Mazur, “Stable structure of metallic hydrogen at a pressure of 500 GPa”, Pis'ma v Zh. Èksper. Teoret. Fiz., 104:5 (2016), 329–333; JETP Letters, 104:5 (2016), 319–322