Phys. Rev. Lett. 90, 167006 (2003) [4 pages]Strong Superconductivity with Local Jahn-Teller Phonons in C60 SolidsReceived 6 August 2002; published 25 April 2003 We analyze fulleride superconductivity at experimental doping levels, treating the electron-electron and electron-phonon interactions on an equal footing, and demonstrate that the Jahn-Teller phonons create a local (intramolecular) pairing which is surprisingly resistant to the Coulomb repulsion, despite the weakness of retardation in these low-bandwidth systems. The requirement for coherence throughout the solid then yields a very strong doping dependence to Tc, one consistent with experiment and much stronger than expected from standard Eliashberg theory. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.90.167006
DOI:
10.1103/PhysRevLett.90.167006
PACS:
74.70.Wz, 71.10.Fd, 71.70.Ej
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