New model for ion neutralization at surfaces

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作者：
Dept. Física Teórica de la Materia Condensada, C-V, Universidad Autónoma de Madrid, E-28049 Madrid, Spain [1 ]
不详 [2 ]
不详 [3 ]
不详 [4 ]
不详 [5 ]
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来源：
Surf Sci | / 3卷 / L875-L880期
关键词：
Green's function - Helium - Ionization - Mathematical models;
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摘要：
We investigate the neutralization of low energy He+ ions in close collisions with metal surface atoms. In order to describe the neutralization process as completely as possible, we consider Auger neutralization (AN), resonant neutralization (RN) and resonant ionization (RI). Our calculation agrees well with experimental data and shows that in some metals (like Pd) AN is the dominant process, whereas in others (like Al) RN and RI contribute significantly for energies above the threshold for reionization.
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