Photoemission spectra of C60-: electron-phonon coupling, Jahn-Teller effect, and superconductivity in the fullerides.

Gunnarsson O., Handschuh H., Bechthold P.S., Kessler B., Gantefor G., Eberhardt W.

A high resolution experimental photoemission spectrum of C60 is compared with calculations including the Jahn-Teller effect and multiple phonon satellites. The spectra show discrete loss features due to the excitation of phonons. From the intensity of these features, electron-phonon coupling constants are derived, which support the electron-phonon mechanism for superconductivity. The systematic deviations from previously calculated coupling constants are discussed in detail.

Physical Review Letters, 74 1875-8, 1995.

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