Russian Journal of Physical Chemistry B

, Volume 9, Issue 4, pp 587–590 | Cite as

Model approach to low-energy inelastic silicon–hydrogen collision processes

Elementary Physicochemical Processes
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Abstract

Cross sections and rate coefficients for inelastic processes in Si + H and Si+ + H collisions are calculated for all transitions between 27 low-lying states up to and including the ionic state. The electronic molecular structure is determined within a recently proposed model approach based on the asymptotic method. Nonadiabatic nuclear dynamics is treated by means of the multichannel formula for nonadiabatic transition probabilities based on the Landau–Zener model. It is shown that the highest rate values correspond to excitation and de-excitation processes between states in the optimal window, as well as for ion pair formation and neutralization processes between these states and the ionic one.

Keywords

atomic data inelastic processes low-energy collisions 

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References

  1. 1.
    P. S. Barklem, A. K. Belyaev, et al., Astron. Astrophys. 530, A94 (2011).CrossRefGoogle Scholar
  2. 2.
    A. K. Belyaev, Phys. Rev. A 88, 052704 (2013).CrossRefGoogle Scholar
  3. 3.
    A. K. Belyaev and S. I. Tserkovnyi, Opt. Spectrosc. 63, 569 (1987).Google Scholar
  4. 4.
    A. K. Belyaev, Phys. Rev. A 48, 4299 (1993).CrossRefGoogle Scholar
  5. 5.
    A. K. Belyaev and P. S. Barklem, Phys. Rev. A 68, 062703 (2003).CrossRefGoogle Scholar
  6. 6.
    R. E. Olson, F. T. Smith, and E. Bauer, Appl. Opt. 10, 1848 (1971).CrossRefGoogle Scholar
  7. 7.
    A. K. Belyaev and O. V. Lebedev, Phys. Rev. A 84, 014701 (2011).CrossRefGoogle Scholar
  8. 8.
    A. K. Belyaev, Khim. Fiz. 4, 750 (1985).Google Scholar
  9. 9.
    A. Kalemos, A. Mavridis, and A. Metropoulos, J. Chem. Phys. 116, 6529 (2002).CrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  1. 1.Herzen State Pedagogical UniversitySt. PetersburgRussia

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