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Publication Date



localized wannier functions; c6ca; pseudopotentials; graphite; systems; state


Using the ab initio anisotropic Eliashberg theory including Coulomb interactions, we investigate the electron-phonon interaction and the pairing mechanism in the recently-reported superconducting Ca-intercalated bilayer graphene. We find that C6CaC6 can support phonon-mediated superconductivity with a critical temperature T-c = 6.8-8.1 K, in good agreement with experimental data. Our calculations indicate that the low-energy Ca-xy vibrations are critical to the pairing, and that it should be possible to resolve two distinct superconducting gaps on the electron and hole Fermi surface pockets.

Publisher Attribution

Margine, E. R., & Henry Lambert, F. G. (2016). Electron-phonon interaction and pairing mechanism in superconducting Ca-intercalated bilayer graphene.Scientific reports, 6.

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Physics Commons



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