Comment on 'The single-wall carbon nanotube waveguides and excitation of their {sigma}+{pi} plasmons by an electron beam' [Phys. Plasmas 16, 022108 (2009)]

Journal Article · Fri May 15 00:00:00 EDT 2009 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3130220· OSTI ID:21277134

Moradi, Afshin ^[1]

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1. Department of Physics, Razi University, Kermanshah 9877 (Iran, Islamic Republic of)

In a recent article [M. Nejati, C. Javaherian, B. Shokri, and B. Jazi, Phys. Plasmas 16, 022108 (2009)], Nejati et al. studied the propagation of plasma wave in the single-wall carbon nanotubes in the presence of the electron beam and showed that the frequency of the {sigma}+{pi} plasma wave strongly depends on the nanotube radius in the short-wavelength region. Here we derive the correct form of the dispersion relation for the transverse magnetic wave in the system and show that the frequency of the plasma wave is quite sensitive to the radius of the tube in the long-wavelength limit.

• OSTI ID: 21277134
• Journal Information: Physics of Plasmas, Vol. 16, Issue 5; Other Information: DOI: 10.1063/1.3130220; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CARBON
DISPERSION RELATIONS
ELECTRON BEAMS
EXCITATION
NANOTUBES
PLASMA WAVES
PLASMONS
WAVE PROPAGATION
WAVEGUIDES