Journal
PHYSICAL REVIEW B
Volume 84, Issue 14, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.84.144515
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Funding
- DOE [DE-FC02-06ER25794, DE-FG52-09NA29456]
- National Science Foundation through TeraGrid resources provided by NICS [TG-MCA93S030]
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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 lambda and renormalized Coulomb repulsion are similar to the molecular phase. A nearly continuous increase in the critical temperature T-c with pressure is thus predicted in this range, to similar to 356 K near 500 GPa. As the atomic phase stabilizes with increasing pressure, lambda increases, causing T-c to approach 481 K near 700 GPa. At the first atomic-atomic structural phase transformation near 1-1.5 TPa, a discontinuous jump in lambda occurs, causing T-c to increase up to 764 K.
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