Low-energy ion neutralization at surfaces: Resonant and Auger processes

N. P. Wang; E. A. García; R. Monreal; F. Flores; E. C. Goldberg; H. H. Brongersma; P. Bauer

doi:r10.1103/PhysRevA.64.012901

Low-energy ion neutralization at surfaces: Resonant and Auger processes

N. P. Wang, E. A. García, R. Monreal, F. Flores, E. C. Goldberg, H. H. Brongersma, P. Bauer

Applied Physics and Science Education

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Abstract

The low-energy ion neutralization at Al and Pd alkali metal surfaces was investigated by studying their interaction with positive helium ions due to backscattering. Quantum theory was used to analyze the auger and resonant neutralization in the energy range from 100 ev to 3 keV. Interaction of the He-1s level with the metal-atom-core orbitals resulted in resonance. Auger neutralization was found to bemore dominant in Pd unlike Al where both were found to be equally operative.

Original language	English
Article number	012901
Pages (from-to)	129011-129018
Number of pages	8
Journal	Physical Review A: Atomic, Molecular and Optical Physics
Volume	64
Issue number	1
DOIs	https://doi.org/r10.1103/PhysRevA.64.012901
Publication status	Published - Jul 2001

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abstract = "The low-energy ion neutralization at Al and Pd alkali metal surfaces was investigated by studying their interaction with positive helium ions due to backscattering. Quantum theory was used to analyze the auger and resonant neutralization in the energy range from 100 ev to 3 keV. Interaction of the He-1s level with the metal-atom-core orbitals resulted in resonance. Auger neutralization was found to bemore dominant in Pd unlike Al where both were found to be equally operative.",

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AU - Flores, F.

AU - Goldberg, E. C.

AU - Brongersma, H. H.

AU - Bauer, P.

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AB - The low-energy ion neutralization at Al and Pd alkali metal surfaces was investigated by studying their interaction with positive helium ions due to backscattering. Quantum theory was used to analyze the auger and resonant neutralization in the energy range from 100 ev to 3 keV. Interaction of the He-1s level with the metal-atom-core orbitals resulted in resonance. Auger neutralization was found to bemore dominant in Pd unlike Al where both were found to be equally operative.

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Low-energy ion neutralization at surfaces: Resonant and Auger processes

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