Nonadiabatic Channels in the Superconducting Pairing of Fullerides

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dc.creatorCappelluti, E.
dc.creatorGrimaldi, C.
dc.creatorPietronero, L.
dc.creatorStraessler, S.
dc.date2001-05-29
dc.date.accessioned2026-07-07T02:41:35Z
dc.date.available2026-07-07T02:41:35Z
dc.descriptionWe show the intrinsic inconsistency of the conventional phonon mediated theory of superconductivity in relation to the observed properties of Rb$_3$C$_{60}$. The recent, highly accurate measurement of the carbon isotope coefficient $α_{\rm C}=0.21$, together with the high value of $T_c$ (30 K) and the very small Fermi energy $E_{\rm F}$ (0.25 eV), unavoidably implies the opening of nonadiabatic channels in the superconducting pairing. We estimate these effects and show that they are actually the key elements for the high value of $T_c$ in these materials compared to the very low values of graphite intercalation compounds.
dc.description4 pages, 4 eps figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0105560
dc.identifierhttp://arxiv.org/abs/cond-mat/0105560
dc.identifierPhys. Rev. Lett. vol.85, p.4771 (27 nov. 2000)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/17798
dc.subjectSuperconductivity
dc.titleNonadiabatic Channels in the Superconducting Pairing of Fullerides
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