title: Experimental evidence of a dynamic Jahn-Teller effect in C60(+).
abstract: Detailed analysis of the highest occupied molecular orbital band shape in the photoelectron spectrum of gaseous C60 reveals a dynamic Jahn-Teller effect in the ground state of C60(+). The direct observation of three tunneling states asserts a D(3d) geometry for the isolated cation, originating from a strong vibronic coupling. These results show that the ionic motion plays an important role in the electron-phonon interaction.
authors.affiliation: Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008, USA. secanton@lbl.gov
authors.forename: S E
authors.initials: SE
authors.lastname: Canton
authors.forename: A J
authors.initials: AJ
authors.lastname: Yencha
authors.forename: E
authors.initials: E
authors.lastname: Kukk
authors.forename: J D
authors.initials: JD
authors.lastname: Bozek
authors.forename: M C A
authors.initials: MC
authors.lastname: Lopes
authors.forename: G
authors.initials: G
authors.lastname: Snell
authors.forename: N
authors.initials: N
authors.lastname: Berrah