Charge and Mass Effects on Low Energy Ion Channeling in Carbon Nanotubes

被引：10

作者：

Li Yong ^{[1
,2
]}

Zheng Li-Ping ^{[1
]}

Zhang Wei ^{[1
]}

Xu Zi-Jian ^{[1
]}

Ren Cui-Lan ^{[1
]}

Huai Ping ^{[1
]}

Zhu Zhi-Yuan ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2011年 / 28卷 / 06期

基金：

中国国家自然科学基金;

关键词：

SINGLE-WALL NANOTUBES; PARTICLES; RADIATION;

D O I：

10.1088/0256-307X/28/6/066101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

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.

引用

页数：4

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