Plasmon excitations on a single-wall carbon nanotube by external charges: two-dimensional, two-fluid hydrodynamic model

Physical Review B 82, 035405 (2010)

Plasmon excitations on a single-wall carbon nanotube by external charges: two-dimensional, two-fluid hydrodynamic model

D. J. Mowbray, S. Segui, J. Gervasoni, Z. L. Mišković, N. R. Arista

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 σ and π 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.

Additional Information

Doi
http://dx.doi.org/10.1103/PhysRevB.82.035405
arxiv
http://arxiv.org/abs/1006.1800

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