Research Articles

Electronic Correlation Effects and Superconductivity in Doped Fullerenes

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Science  15 Nov 1991:
Vol. 254, Issue 5034, pp. 970-974
DOI: 10.1126/science.254.5034.970


A theory of the electronic properties of doped fullerenes is proposed in which electronic correlation effects within single fullerene molecules play a central role, and qualitative predictions are made which, if verified, would support this hypothesis. Depending on the effective intrafulllerene electron-electron repulsion and the interfullerene hopping amplitudes (which should depend on the dopant species, among other things), the calculations indicate the possibilities of singlet superconductivity and ferromagnetism.