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

doi:10.1103/PhysRevB.59.5832

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

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Résumé

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).

langue originale	Anglais
Pages (de - à)	5832-5836
Nombre de pages	5
journal	Physical Review. B, Condensed Matter and Materials Physics
Volume	59
Numéro de publication	8
Les DOIs	https://doi.org/10.1103/PhysRevB.59.5832
Etat de la publication	Publié - 1999

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10.1103/PhysRevB.59.5832

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@article{ece0323638124dc49c65c71448fb50f4,

title = "Electron-energy-loss spectroscopy of plasmon excitations in concentric-shell fullerenes",

abstract = "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).",

author = "Luc Henrard and Fr{\'e}d{\'e}ric Malengreau and Petra Rudolf and Kadosa Hevesi and Roland Caudano and Philippe Lambin and Thierry Cabioc'h",

note = "Publication code : **RES. ACAD.",

year = "1999",

doi = "10.1103/PhysRevB.59.5832",

language = "English",

volume = "59",

pages = "5832--5836",

journal = "Physical Review. B, Condensed Matter and Materials Physics",

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publisher = "American Institute of Physics Publising LLC",

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TY - JOUR

T1 - Electron-energy-loss spectroscopy of plasmon excitations in concentric-shell fullerenes

AU - Henrard, Luc

AU - Malengreau, Frédéric

AU - Rudolf, Petra

AU - Hevesi, Kadosa

AU - Caudano, Roland

AU - Lambin, Philippe

AU - Cabioc'h, Thierry

N1 - Publication code : **RES. ACAD.

PY - 1999

Y1 - 1999

N2 - 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).

AB - 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).

U2 - 10.1103/PhysRevB.59.5832

DO - 10.1103/PhysRevB.59.5832

M3 - Article

SN - 1098-0121

VL - 59

SP - 5832

EP - 5836

JO - Physical Review. B, Condensed Matter and Materials Physics

JF - Physical Review. B, Condensed Matter and Materials Physics

IS - 8

ER -

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

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