TY - JOUR
T1 - High-temperature superconductivity in atomic metallic hydrogen
AU - McMahon, Jeffrey M.
AU - Ceperley, David M.
PY - 2011/10/17
Y1 - 2011/10/17
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevB.84.144515
DO - 10.1103/PhysRevB.84.144515
M3 - Article
AN - SCOPUS:80155179401
SN - 1098-0121
VL - 84
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 14
M1 - 144515
ER -