Dispersion relation of dust acoustic waves in metallic multi-walled carbon nanotubes

doi:10.1088/1674-1056/21/5/057306

中国物理B ›› 2012, Vol. 21 ›› Issue (5): 57306-057306.doi: 10.1088/1674-1056/21/5/057306

Dispersion relation of dust acoustic waves in metallic multi-walled carbon nanotubes

Ali Fathalian¹ ²,Shahram Nikjo¹

a. Department of Physics, Razi University, Kermanshah, Iran;
b. Department of Nano Science, Institute for Studies in Theoretical Physics and Mathematics (IPM), Tehran, Iran

收稿日期:2011-10-22 修回日期:2012-04-27 出版日期:2012-04-01 发布日期:2012-04-01

Dispersion relation of dust acoustic waves in metallic multi-walled carbon nanotubes

Ali Fathalian^a)b)† and Shahram Nikjo^a)

a. Department of Physics, Razi University, Kermanshah, Iran;
b. Department of Nano Science, Institute for Studies in Theoretical Physics and Mathematics (IPM), Tehran, Iran

Received:2011-10-22 Revised:2012-04-27 Online:2012-04-01 Published:2012-04-01

摘要/Abstract

摘要： 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.

关键词: dust acoustic wave, dispersion relation

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.

Key words: dust acoustic wave, dispersion relation

中图分类号: (Collective excitations)

73.43.Lp

52.35.Fp (Electrostatic waves and oscillations (e.g., ion-acoustic waves))

Ali Fathalian, Shahram Nikjo. Dispersion relation of dust acoustic waves in metallic multi-walled carbon nanotubes[J]. 中国物理B, 2012, 21(5): 57306-057306.

Ali Fathalian and Shahram Nikjo . Dispersion relation of dust acoustic waves in metallic multi-walled carbon nanotubes[J]. Chin. Phys. B, 2012, 21(5): 57306-057306.

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Dispersion relation of dust acoustic waves in metallic multi-walled carbon nanotubes

Dispersion relation of dust acoustic waves in metallic multi-walled carbon nanotubes

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