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论文类型：期刊论文

发表时间：2009-09-15

发表刊物：9th International Conference on Computer Simulation of Radiation Effects in Solids

收录刊物：SCIE、EI、CPCI-S、Scopus

卷号：267

期号：18

页面范围：3133-3136

ISSN号：0168-583X

关键字：Carbon nanotube; Self-energy; Stopping power

摘要：A kinetic model combined with the dielectric response theory is employed to study the electronic excitation on the nanotube walls during the channeling of protons through double-walled carbon nanotubes. Analytical expressions of the self-energy and stopping power are obtained with protons moving along the axis of the double-walled nanotubes. Calculation results show us interesting double-peak curves of the self-energy and stopping power, under strong influence of the damping factor and the special double-walled nanotube geometry. Relatively increasing the damping factor and the chiral parameter of the outer wall can reduce the interference effects between the two walls and weaken the double-peak to one-peak shapes. (C) 2009 Elsevier B.V. All rights reserved.