Photoemission Spectra of C60−: Electron-Phonon Coupling, Jahn-Teller Effect, and Superconductivity in the Fullerides

O. Gunnarsson; H. Handschuh; P. S. Bechthold; B. Kessler; G. Ganteför; W. Eberhardt

doi:10.1103/PhysRevLett.74.1875

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Photoemission Spectra of C60−: Electron-Phonon Coupling, Jahn-Teller Effect, and Superconductivity in the Fullerides

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

DOI 10.1103/PhysRevLett.74.1875 · Physical Review Letters

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Abstract

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.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
K3C60 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Rb3C60 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown