Low-energy-electron transmission in solid krypton and xenon films
Autor: | L Sanche, I. T. Steinberger, AD Bass, R Shechter |
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Rok vydání: | 1993 |
Předmět: | |
Zdroj: | Physical Review B. 48:8290-8298 |
ISSN: | 1095-3795 0163-1829 |
DOI: | 10.1103/physrevb.48.8290 |
Popis: | Low-energy-electron-transmission (LEET) spectra of krypton and xenon films deposited on a platinum substrate exhibit a peak at an energy somewhat below the center of the respective Γ 3/2 n=1 exciton band. The peaks were systematically studied as a function of the film thickness. They were attributed to a process in which an electron loses a large part of its energy by creating a Γ 3/2 n=1 exciton and consequently ends up in the conduction band of the rare-gas solid beneath the vacuum level. A simple model was formulated, taking into account the shape of the optical-absorption band and the image forces at the sample boundaries |
Databáze: | OpenAIRE |
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