Plasmon excitations in C{sub 60} by fast charged particle beams
- College of Physics and Electronic Information, Inner Mongolia University for the Nationalities, Tongliao 028043 (China)
- Department of Applied Mathematics and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1 (Canada)
- Department of Applied Mathematics, University of Waterloo, Waterloo, Ontario N2L 3G1 (Canada)
- School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116023 (China)
For an isolated C{sub 60} molecule, we study plasmon excitations that are induced by an external, fast moving electron, by using a two-dimensional, spherical, two-fluid hydrodynamic model for the dynamic response of the {sigma} and {pi} electrons in the carbon nanostructure. Second quantization of the linearized hydrodynamic model allows us to discuss how effective is multiple excitation of various plasmon modes. Mean numbers of the excited plasmon modes, differential cross sections, and the total energy loss of the incident electron are calculated by both a quantized model with zero damping and by a semi-classical model with phenomenological damping. Our calculated differential cross sections are compared with experiment.
- OSTI ID:
- 22162909
- Journal Information:
- Journal of Applied Physics, Vol. 113, Issue 18; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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