1. Neutralization of low energy Na+ ions in grazing scattering on clean and water covered Cu(1 1 0) surfaces.
- Author
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Wang, Lei, Sun, Guangzhi, Liu, Xuan, Guo, Xinyue, Wei, Mingxuan, Qiu, Shunli, Yin, Liyuan, Zhang, Zheng, Chen, Ximeng, Guo, Yanling, Luo, Wei, and Chen, Lin
- Subjects
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ION scattering , *ION energy , *SURFACE cleaning , *ELECTRON work function , *GRAZING incidence - Abstract
[Display omitted] • For both surfaces, the neutral fractions decrease as the incident energy increases. • Neutral fraction on H 2 O/Cu(1 1 0) is lower than that of Cu(1 1 0). • The work function of H 2 O/Cu(1 1 0) is lightly greater than that of clean Cu(1 1 0). keV-energy Na+ ions are scattered from clean and water covered Cu(1 1 0) surfaces in grazing incidence. For both surfaces the pronounced Na° fractions decrease with incident energy. In particular, the lower Na° fraction has been observed for the water covered Cu(1 1 0) surface. The simple calculations using rate equation are presented to compare with the experimental data. The calculation is in agreement with the experimental data. It indicates that the water covered Cu(1 1 0) surface has the slightly higher work function due to water molecules dissociation and forming hydroxyl groups, so that the neutral fraction on water covered Cu(1 1 0) is lower than that on the clean surface. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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