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
Charge and Mass Effects on Low Energy Ion Channeling in Carbon Nanotubes
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
摘要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.
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.
(Channeling phenomena (blocking, energy loss, etc.) ?)
引用本文:
LI Yong;ZHENG Li-Ping;ZHANG Wei**;XU Zi-Jian**;REN Cui-Lan;HUAI Ping;ZHU Zhi-Yuan
. Charge and Mass Effects on Low Energy Ion Channeling in Carbon Nanotubes[J]. 中国物理快报, 2011, 28(6): 66101-066101.
LI Yong, ZHENG Li-Ping, ZHANG Wei**, XU Zi-Jian**, REN Cui-Lan, HUAI Ping, ZHU Zhi-Yuan
. Charge and Mass Effects on Low Energy Ion Channeling in Carbon Nanotubes. Chin. Phys. Lett., 2011, 28(6): 66101-066101.
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