Effect of multiple plasmon excitation on single, double and multiple ionizations of C60 in collisions with fast highly charged Si ions

被引：9
作者：
Kelkar, A. H. [1 ]
Kadhane, U. [1 ]
Misra, D. [1 ]
Kumar, A. [1 ]
Tribedi, L. C. [1 ]
机构：
[1] Tata Inst Fundamental Res, Bombay 5, Maharashtra, India
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2007年 / 40卷 / 12期
关键词：
D O I：
10.1088/0953-4075/40/12/021
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We have investigated the single and multiple ionizations of the C-60 molecule in collisions with fast Siq+ projectiles for various projectile charge states (q) between q = 6 and 14. The q- dependence of the ionization cross sections and their ratios is compared with the giant dipole plasmon resonance (GDPR) model. The excellent qualitative agreement with the model in case of single and double ionizations and also a reasonable agreement with the triple (and to some extent with quadruple) ionization (without evaporation) yields signify dominant contributions of the single-, double- and triple- plasmon excitations on the single- and multiple- ionization process.
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页码：2481 / 2489
页数：9
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