Statistics of electron and exciton production for grazing impact of keV hydrogen atoms on a LiF(001) surface
Statistics of electron and exciton production for grazing impact of keV hydrogen atoms on a LiF(001) surface
复制标题
keV氢原子掠过LiF(001)表面的电子和激子产生统计
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
H. Winter
中科院分区：
文献类型：
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作者：
H. Winter;S. Lederer;K. Maass;A. Mertens;F. Aumayr;H. Winter
The energy loss of kilo-electronvolt hydrogen atoms for scattering from a LiF(001) surface under a grazing angle of incidence is measured in coincidence with the number of emitted electrons. The combined time-of-flight and electron number distributions show discrete features which are attributed to specific numbers for emitted electrons and production of surface excitons. The distributions are fairly well reproduced in terms of binomial distributions. The corresponding probabilities for electron and exciton production can consistently be related to a model where the formation of negative hydrogen atoms via local electron capture from halogen lattice sites is considered as a precursor for both processes.
