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Ab Initio Description of High-Temperature Superconductivity in Dense Molecular Hydrogen

2008; American Physical Society; Volume: 100; Issue: 25 Linguagem: Inglês

10.1103/physrevlett.100.257001

1092-0145

Pierluigi Cudazzo, G. Profeta, Antonio Sanna, Andrea Floris, A. Continenza, S. Massidda, E. K. U. Gross,

Thermal Expansion and Ionic Conductivity

We present a first-principles study of the electron-phonon interaction and the prediction of the superconducting critical temperature in molecular metallic hydrogen. Our study is able to single out the features which drive the system towards superconductivity: mainly, a rich and complex Fermi surface and strongly coupled phonon modes driving the intra- or intermolecular charge transfer. We demonstrate that in this simple system, a very high superconducting critical temperature can be reached via electron-phonon and Coulomb electron-electron interactions.