Dispersion relation of dust acoustic waves in metallic multi-walled carbon nanotubes |
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Authors: | Ali Fathalian Shahram Nikjo |
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Institution: | 1. Department of Physics, Razi University, Kermanshah, Iran;
2. Department of Nano Science, Institute for Studies in Theoretical Physics and Mathematics (IPM), Tehran, Iran |
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Abstract: | In this paper, a charged multi-walled carbon nanotube (MWCNT), which is surrounded by charged nanoparticles, is modeled as a cylindrical shell of electron--ion--dust plasma. By employing classical electrodynamics formulations and the linearized hydrodynamic model, the dispersion relation of the dust acoustic wave oscillations in the composed system is investigated. We obtain a new low-frequency electrostatic excitation in the MWCNT, i.e. dust acoustic wave oscillations. |
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Keywords: | dust acoustic wave dispersion relation |
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