Phys. Rev. B 76, 113411 (2007) [4 pages]Collective excitations in single-walled carbon nanotubesReceived 13 June 2007; revised 31 July 2007; published 27 September 2007 In this Brief Report, we study the dispersion relations of plasma waves which propagate parallel to the surface of the single-walled metallic carbon nanotubes. We use the classical electrodynamics in our calculations. Electronic excitations on the nanotube surface are modeled by an infinitesimally thin layer of the π and σ electrons which is described by means of the two-fluid hydrodynamic theory. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.76.113411
DOI:
10.1103/PhysRevB.76.113411
PACS:
73.22.Lp, 72.15.Nj, 42.25.Bs
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