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Charge-state dependence of kinetic electron emission induced by slow ions in metals

AuthorsJuaristi Oliden, Joseba Iñaki ; Díez Muiño, Ricardo
Issue Date2003
PublisherAmerican Physical Society
CitationPhysical Review A 68(1): 012902 (2003)
AbstractA calculation is performed in order to analyze the charge-state dependence of the kinetic electron emission induced by slow ions in metals. All stages of the emission process are included: the excitation of the electrons, the neutralization of the projectile during its passage through the solid, and the transport of the excited electrons from where they are created to the surface. It is shown that the number of excited electrons depends strongly on the ion charge state. Nevertheless, due to the fast neutralization of the ions within the escape depth of the excited electrons, no significant initial charge-state dependence is expected in the kinetic electron yield. This result is consistent with available experimental data.
Identifiersdoi: 10.1103/PhysRevA.68.012902
issn: 1050-2947
e-issn: 1094-1622
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