Charge exchange in gas-surface collisions: The three electronic state system

John A. Olson, Barbara Jane Garrison

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A theoretical treatment of near-resonant charge exchange occurring in gas-surface collisions is presented for a coupled three electronic state system. The surface is represented by a cluster of five metal atoms and the diatomics in molecules procedure is used to construct the gas-surface interaction potentials and nonadiabatic couplings. These are used in the common eikonal formalism which gives a time-dependent description for the evolution of the transition amplitudes and the nuclear positions and momenta. An application is made to a hyperthermal energy sodium atom scattering off a tungsten (110) surface. Results of the ionization probability vs. the initial kinetic energy of the sodium atom are presented. The three electronic channels correspond to a neutral (the initial state) and two ionic channels. In comparison to the two state results, it is found that the extra ionic channel gives rise to additional interference effects but it does not substantially increase the ionization probability.

Original languageEnglish (US)
Pages (from-to)1430-1435
Number of pages6
JournalJournal of Physical Chemistry
Volume91
Issue number6
DOIs
StatePublished - Jan 1 1987

Fingerprint

Electronic states
charge exchange
Gases
collisions
Ion Channels
electronics
gases
sodium
Atoms
Ionization
atoms
ionization
Sodium
surface reactions
Tungsten
tungsten
kinetic energy
Kinetic energy
formalism
momentum

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physical and Theoretical Chemistry

Cite this

Olson, John A. ; Garrison, Barbara Jane. / Charge exchange in gas-surface collisions : The three electronic state system. In: Journal of Physical Chemistry. 1987 ; Vol. 91, No. 6. pp. 1430-1435.
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Charge exchange in gas-surface collisions : The three electronic state system. / Olson, John A.; Garrison, Barbara Jane.

In: Journal of Physical Chemistry, Vol. 91, No. 6, 01.01.1987, p. 1430-1435.

Research output: Contribution to journalArticle

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