Electronic Excitation of C60 Vapour by Electron Energy Loss Spectroscopy
A lot of work has already been devoted to the determination of the electronic states of the highly symmetric Buckminsterfullerene molecule. Only a few references are given here both on theoretical1–5, and experimental viewpoints6-14. Most of the experiments have been performed on the C60 solid phase, or in C60 solutions. The recent opportunity15 to produce gram quantities of relatively pure C60 have allowed the extension of experiments to energy loss studies in the gas phase13, 14. The present contribution is dealing with electron energy loss spectra, with angular analysis, recorded in C60 vapour, in the low and intermediate incident energy range, i. e. 0 to 70 eV above the excitation thresholds of the low lying electronic states (1–10 eV).
KeywordsTriplet State Incident Energy Residual Energy Electron Energy Loss Spectroscopy Collective Excitation
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