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Paper   IPM / Nano-Sciences / 13279
School of Nano Science
  Title:   Extinction properties of single-walled carbon nanotubes: Two-fluid model
  Author(s):  Afshin Moradi
  Status:   Published
  Journal: Phys. Plasmas
  No.:  3
  Vol.:  21
  Year:  2014
  Pages:   032106 (5pp)
  Publisher(s):   AIP Publishing
  Supported by:  IPM
The extinction spectra of a single-walled carbon nanotube are investigated, within the framework of the vector wave function method in conjunction with the hydrodynamic model. Both polarizations of the incident plane wave (TE and TM with respect to the x-z plane) are treated. Electronic excitations on the nanotube surface are modeled by an infinitesimally thin layer of a two-dimensional electron gas represented by two interacting fluids, which takes into account the different nature of the r and p electrons. Numerical results show that strong interaction between the fluids gives rise to the splitting of the extinction spectra into two peaks in quantitative agreement with the p and r þ p plasmon energies

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