Negative-Ion Formation on Alkali-Metal Surfaces
- 5 September 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 61 (10) , 1194-1197
- https://doi.org/10.1103/physrevlett.61.1194
Abstract
Thermal S molecules have been observed to decompose and desorb as various atomic and molecular negative ions upon impact with room-temperature alkali-metal surfaces. Many of the negative ions observed have electron affinities which are less than the alkali-metal work function; hence the mechanism for ion formation and desorption is complex. A simple model is proposed to account for some of the observations.
Keywords
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