High-temperature superconductivity in atomic metallic hydrogen

Jeffrey M. McMahon, David M. Ceperley

Research output: Contribution to journalArticlepeer-review


Superconductivity in the recently proposed ground-state structures of atomic metallic hydrogen is calculated over the pressure range 500 GPa to 3.5 TPa. Near molecular dissociation, the electron-phonon coupling λ and renormalized Coulomb repulsion are similar to the molecular phase. A nearly continuous increase in the critical temperature Tc with pressure is thus predicted in this range, to ∼356 K near 500 GPa. As the atomic phase stabilizes with increasing pressure, λ increases, causing Tc to approach 481 K near 700 GPa. At the first atomic-atomic structural phase transformation near 1-1.5 TPa, a discontinuous jump in λ occurs, causing Tc to increase up to 764 K.

Original languageEnglish (US)
Article number144515
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number14
StatePublished - Oct 17 2011

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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