Theoretical critical angels of ion channeling in carbon nanotubes |
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| Authors: | Li-Ping Zheng Zhi-Yuan Zhu Yong Li Long Yan |
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| Affiliation: | 1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, P.O. Box 800-204, Shanghai 201800, China;2. International Centre for Material Physics, Chinese Academy of Sciences, Shenyang 110016, China |
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| Abstract: | We have developed a mass- and charge-dependent equation to predict theoretical critical angles for ion channeling in carbon nanotubes. We focus M (ion mass) effects how to reduce Ze (ion nucleus charge) effects on ΨC (critical angles). As an instance, we give theoretical critical angels of He, Ne, Ar, Kr, Xe and Rn ion channeling in carbon nanotubes. We find that for (10, 10) single-wall carbon nanotubes, ΨC(He) ≈ ΨC(Ne) ≈ ΨC(Ar) ≈ ΨC(Kr) ≈ ΨC(Xe) ≈ ΨC(Rn) ≈ 23.3 (keV/E)1/2 deg. This is because (Z/M)1/2 ≈ 0.66 amu]?1/2. |
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