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Plasmon dispersion of low-frequency oscillations in metallic double-walled carbon nanotubes

Ali Fathalian1,2 and Shahram Nikjo1

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The dispersion properties of low-frequency electromagnetic waves in metallic double-walled carbon nanotubes (DWCNTs) are investigated. We assume that metallic DWCNTs are charged due to field emission, and hence metallic nanotubes can be regarded as charged dust rods surrounded by degenerate electrons and ions. Calculations are performed for transverse magnetic (TM) and transverse electric (TE) waves, respectively, by solving Maxwell and hydrodynamic equations with appropriate boundary conditions.


PACS

73.22.Lp Collective excitations

71.45.Gm Exchange, correlation, dielectric and magnetic response functions, plasmons

79.70.+q Field emission, ionization, evaporation, and desorption

73.21.-b Electron states and collective excitations in multilayers, quantum wells, mesoscopic, and nanoscale systems

Subjects

Condensed matter: electrical, magnetic and optical

Surfaces, interfaces and thin films

Nanoscale science and low-D systems

Dates

Issue 5 (November 2009)

Received 3 August 2009, accepted for publication 27 September 2009

Published 4 November 2009



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