Isotopic mass effects for low-energy ion channeling in single-wall carbon nanotubes

被引：13

作者：

Zheng, Li-Ping ^{[1
,2
]}

Zhu, Zhi-Yuan ^{[1
]}

Li, Yong ^{[1
]}

Zhu, De-Zhang ^{[1
]}

Xia, Hui-Hao ^{[1
]}

机构：

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

[2] Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 39期

关键词：

D O I：

10.1021/jp8036999

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Monte Carlo (MC) simulation studies of isotopic mass effects have been conducted, for low-energy channeling of C-12 and C-13 ions in single-wall carbon nanotubes. It is found in MC simulations that (Psi(C) (for) C-12/Psi(C) (for) C-13) = (13/12)(1/2), for the same incident energies. Here, Psi(C) (for) C-12 is the critical angle for C-12 channeling, and Psi(C) (for) C-13 is the critical angle for C-13 channeling. This work shows the mass effect to be the incident momentum one, but a recent work (Moura, C. S.; Amaral, L. J. Phys. Chem. B 2005, 109, 13515) considered it to be the energy transfer effect. Our work disagrees with that of Moura and Amaral.

引用

页码：15204 / 15206

页数：3

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