Stable structure of metallic hydrogen at a pressure of 500 GPa


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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.

About the authors

N. N. Degtyarenko

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Email: eugen_mazur@mail.ru
Russian Federation, Moscow, 115409

E. A. Mazur

National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)

Author for correspondence.
Email: eugen_mazur@mail.ru
Russian Federation, Moscow, 115409

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