Photoexcitation of a volume plasmon in C60 ions

S. W J Scully, E. D. Emmons, M. F. Gharaibeh, R. A. Phaneuf, A. L D Kilcoyne, A. S. Schlachter, S. Schippers, A. Müller, H. S. Chakraborty, Mohamed Madjet, J. M. Rost

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Abstract

Neutral C60 is well known to exhibit a giant resonance in its photon absorption spectrum near 20 eV. This is associated with a surface plasmon, where delocalized electrons oscillate as a whole relative to the ionic cage. Absolute photoionization cross-section measurements for C 60 +, C60 2+, and C60 3+ ions in the 17-75 eV energy range show an additional resonance near 40 eV. Time-dependent density functional calculations confirm the collective nature of this feature, which is characterized as a dipole-excited volume plasmon made possible by the special fullerene geometry.

Original languageEnglish
Article number065503
JournalPhysical Review Letters
Volume94
Issue number6
DOIs
Publication statusPublished - 18 Feb 2005
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Scully, S. W. J., Emmons, E. D., Gharaibeh, M. F., Phaneuf, R. A., Kilcoyne, A. L. D., Schlachter, A. S., Schippers, S., Müller, A., Chakraborty, H. S., Madjet, M., & Rost, J. M. (2005). Photoexcitation of a volume plasmon in C60 ions. Physical Review Letters, 94(6), [065503]. https://doi.org/10.1103/PhysRevLett.94.065503