Low Energy Electron Scattering by Alkali Halides

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  • Low Energy Electron Scattering by Alkal

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The energy distribution curves (EDC’s) of the electrons scattered by the evaporated films of twenty kinds of alkali halides are obtained by impact with low energy electrons of 10–30 eV. Stationary bands observed in the EDC’s are interpreted as the reflection of the high density of state levels in the conduction band. Energy loss structures due to the valence electron excitation are also observed in the EDC’s. Furthermore the structures observed in the yield spectra are found to relate with exciton formation, band-to-band transition, plasmon and double excitation of valence electrons.

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