| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Charge and Mass Effects on Low Energy Ion Channeling in Carbon Nanotubes |
| LI Yong1,2, ZHENG Li-Ping1, ZHANG Wei1**, XU Zi-Jian1**, REN Cui-Lan1, HUAI Ping1, ZHU Zhi-Yuan1
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1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, PO Box 800-204, Shanghai 201800
2Graduate University of the Chinese Academy of Sciences, Beijing 100049
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| Cite this article: |
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LI Yong, ZHENG Li-Ping, ZHANG Wei et al 2011 Chin. Phys. Lett. 28 066101 |
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Abstract Channeling phenomena of He, Ne, Ar and Kr ions at energy (200–5000 eV) in single-wall carbon nanotubes (SWCNTs) are investigated by molecular dynamics simulation with analytical potentials. The critical angles for the particles to be channeled in an SWCNT are analyzed. In the incident energy range of 200–5000 eV, it is found that the ion energy dependence of the critical angle obeys an improved Lindhard equation which is closely related to the ratio of nuclear charge number to atomic mass Z/M. The critical angle for different types of ions channeling in SWCNTs is determined by both the atomic nuclear charge and mass.
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| Keywords:
61.46.Fg
61.85.+p
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Received: 15 January 2011
Published: 29 May 2011
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| PACS: |
61.46.Fg
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(Nanotubes)
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61.85.+p
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(Channeling phenomena (blocking, energy loss, etc.) ?)
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