Dynamic interactions of fast ions with carbon nanotubes

✍ Scribed by D.J. Mowbray; Sangwoo Chung; Z.L. Mišković; F.O. Goodman; You-Nian Wang

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 237 KB
• Volume: 230
• Category: Article
• ISSN: 0168-583X
• DOI: 10.1016/j.nimb.2004.12.032

✦ Synopsis

We used the hydrodynamic model to describe the dielectric response of a multi-walled carbon nanotube to a fast point charge moving paraxially, either inside or outside the nanotube. Calculations are performed for a two-walled nanotube, giving rise to a splitting of the plasmon frequencies due to the interaction between the electron fluids on the two cylinders. The dependences of the projectile stopping power and the self-energy (image potential) on the velocity and the distance from the nanotube axis show interesting features when the projectile velocity matches the phase velocity of the plasmon mode with a quasi-linear dispersion.