Journal
PHYSICAL REVIEW B
Volume 82, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.82.035405
Keywords
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Funding
- Natural Sciences and Engineering Research Council of Canada
- Agencia Nacional de Promocion Cientifica y Tecnologica [PICT 32983]
- Universidad Nacional de Cuyo
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We present a quantization of the hydrodynamic model to describe the excitation of plasmons in a single-walled carbon nanotube by a fast point charge moving near its surface at an arbitrary angle of incidence. Using a two-dimensional electron gas represented by two interacting fluids, which takes into account the different nature of the sigma and pi electrons, we obtain plasmon energies in near-quantitative agreement with experiment. Further, the implemented quantization procedure allows us to study the probability of exciting various plasmon modes, as well as the stopping force and energy loss spectra of the incident particle.
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