Electron-energy-loss spectroscopy of plasmon excitations in concentric-shell fullerenes

Luc Henrard, Frédéric Malengreau, Petra Rudolf, Kadosa Hevesi, Roland Caudano, Philippe Lambin, Thierry Cabioc'h

    Research output: Contribution to journalArticle


    We report evidence for surface plasmon excitations in concentric-shell fullerenes. A film of these concentric-shell fullerenes with radii around 5–7 nm was produced by carbon bombardment of a silver polycrystalline target and measured by electron-energy-loss spectroscopy (EELS) in reflection geometry. These data were analyzed with the help of a dielectric theory developed for EELS in transmission geometry. Taking into account the concentric-shell–substrate interaction, the spectral shape can be explained as a combination of contributions from σ−π* interband transitions (around 13.5 eV), from the surface radial (σ−π*) and tangential (σ−σ*) plasmons (around 14.5 eV and 16.7 eV, respectively), and from the volume plasmon (24.5 eV).
    Original languageEnglish
    Pages (from-to)5832-5836
    Number of pages5
    JournalPhysical Review. B, Condensed Matter and Materials Physics
    Issue number8
    Publication statusPublished - 1999


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