Photoexcitation of a volume plasmon in C60 ions

Journal Article · Tue Jun 21 00:00:00 EDT 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.94.065503· OSTI ID:860908

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

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 C60(sup+), C60(sup2+), and C60(sup3+) ions in the 17 75eV 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.

• Research Organization: Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
• Sponsoring Organization: USDOE Director. Office of Science. Office of Basic EnergySciences; Deutsche Forschungsgemeinschaft, Alexander von HumboldtFoundation
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 860908
• Report Number(s): LBNL--57838; BnR: KC0204016
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Vol. 94; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION
C60 photoionization fullerene volume plasmon
ELECTRONS
ENERGY RANGE
FULLERENES
FUNCTIONALS
GEOMETRY
GIANT RESONANCE
PHOTOIONIZATION
PHOTONS
PLASMONS
RESONANCE