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Vicinage effect in secondary electron emission from a clean (001) surface of SnTe induced by keV hydrogen clusters
Authors:Yasufumi Susuki
Institution:1. Department of Physics, Osaka Kyoiku University, Kashiwara, Osaka, 582, Japan
Abstract:The total secondary electron emission yields from a clean (001) surface of SnTe crystal are studied at the bombardment of hydrogen clusters (H+, H 2 + and H 3 + ions) with energies ranging from 7 to 12 keV/amu. The observed yield is not proportional to the number of protons in the cluster ion. The yields are successfully explained by applying the stopping powers of a homogeneous electron gas for the constituents of the clusters in keV energy region, which provide the vicinage effect.
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