Mutual recombination in slow Si~+ + H~- collisions
Wang Jianguo1; Liu Chunlei1; Janev R K2; Yan Jun1; Shi Jianrong3
Source PublicationChinese Physics
AbstractThis paper studies the process of mutual neutralization of Si+ and H- ions in slow collisions within the multi-channel Landau–Zener model. All important ionic-covalent couplings in this collision system are included in the collision dynamics. The cross sections for population of specific final states of product Si atom are calculated in the CM energy range 0.05 eV/u–5 keV/u. Both singlet and triplet states are considered. At collision energies below ~10 eV/u, the most populated singlet state is Si(3p4p, ~1S_0), while for energies above ~150 eV/u it is the Si(3p, 4p, ~1P_1) state. In the case of triplet states, the mixed 3p4p(~3S_1+~3P_0) states are the most populated in the entire collision energy range investigated. The total cross section exhibits a broad maximum around 200–300 eV/u and for ECM≤ 10 eV/u it monotonically increases with decreasing the collision energy, reaching a value of 8×10~(-13) cm~2 at ECM = 0.05 eV/u. The ion-pair formation process in Si(3p~2 ~3P_J)+H(1s) collisions has also been considered and its cross section in the considered energy range is very small (smaller than 10~(-20)cm~2 in the energy region below 1 keV/u).
Document Type期刊论文
Affiliation1.Institute of Applied Physics and Computational Mathematics
2.Macedonian Academy of Sciences and Arts, P.O.B. 428, 1000 Skopje
Recommended Citation
GB/T 7714
Wang Jianguo,Liu Chunlei,Janev R K,et al. Mutual recombination in slow Si~+ + H~- collisions[J]. Chinese Physics,2006,15(11):2651.
APA Wang Jianguo,Liu Chunlei,Janev R K,Yan Jun,&Shi Jianrong.(2006).Mutual recombination in slow Si~+ + H~- collisions.Chinese Physics,15(11),2651.
MLA Wang Jianguo,et al."Mutual recombination in slow Si~+ + H~- collisions".Chinese Physics 15.11(2006):2651.
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