Title:
Collective oscillations in a single-wall carbon nanotube excited by fast electrons
Collective oscillations in a single-wall carbon nanotube excited by fast electrons
Authors
Stöckli, Thomas
Bonard, Jean-Marc
Châtelain, André
Wang, Z. L. (Zhong Lin)
Stadelmann, Pierre
Bonard, Jean-Marc
Châtelain, André
Wang, Z. L. (Zhong Lin)
Stadelmann, Pierre
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Abstract
Electron energy loss spectroscopy is a well adapted tool for the investigation of the valence excitations of individual nanometer-size particles. The interpretation of the loss spectra of such small particles, however, relies in most cases on a quantitative comparison with simulated excitation probabilities. Here we present a formalism developed for the interpretation of the energy loss data of single-wall carbon nanotubes based on the hydrodynamic theory of plasmon excitations by high-energy electrons. The nanotubes are modeled as a two-dimensional electron gas confined on the circumference of a cylinder. The plasmon excitation probabilities, directly comparable to measurements, are discussed for various parameters.
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Date Issued
2001-08-31
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Article