Pe. Lammert et Ds. Rokhsar, ELECTRONIC PAIRING MECHANISM IN FULLERENES - INTERACTIONS AND CORRELATIONS, Physical review. B, Condensed matter, 48(6), 1993, pp. 4103-4113
We address two fundamental questions concerning the repulsion-induced
pairing mechanism of Chakravarty et al. for superconductivity in alkal
i-metal-doped fullerenes: (1) How does repulsion at an atomic scale re
sult in attraction on a molecular scale? (2) What role, if any, do uni
versal correlation effects (e.g., spin-charge separation) play in this
scenario?