Excited-Atom Production by Electron Bombardment of Alkali Halides
- 27 October 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 57 (17) , 2227-2230
- https://doi.org/10.1103/physrevlett.57.2227
Abstract
We present experimental results which suggest a new mechanism for the production of excited atoms by electron bombardment of alkali halides. Doppler-shift measurements show that the electronically excited atoms have a thermal velocity distribution in equilibrium with the surface temperature. Measurements of the yield of excited atoms, the distribution of population among the excited states, and the dependence on incident-electron current support a model in which the excited atoms are produced by gas-phase collisions between desorbed ground-state atoms and secondary electrons.Keywords
This publication has 21 references indexed in Scilit:
- Energy dependence of electron stimulated desorption of excited neutral alkalis from alkali halidesSurface Science, 1983
- Optical Radiation from Photon-Stimulated Desorption of Excited AtomsPhysical Review Letters, 1982
- Electron-induced sputtering of KCl and NaClJournal of Physics C: Solid State Physics, 1982
- Optical Radiation from Electron-Stimulated Desorption of Excited ParticlesPhysical Review Letters, 1981
- On the model of the electron sputtering process of alkali halidesRadiation Effects, 1980
- Sputtering of molecules during low-energy electron bombardment of alkali halidesSurface Science, 1979
- Energy distributions of atoms sputtered from alkali halides by 540 eV electronsRadiation Effects, 1978
- Electron sputtering of alkali halides a study of its dependence on the beam energy and target temperatureRadiation Effects, 1978
- Sputtering and dynamic interstitial motion in alkali halidesNuclear Instruments and Methods, 1976
- Surface dissociation of potassium chloride by low-energy electron bombardmentJournal of Physics and Chemistry of Solids, 1968