Auger electron spectroscopy study of oxidation on lanthanum hexaboride
- 1 September 1973
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 23 (5) , 215-216
- https://doi.org/10.1063/1.1654863
Abstract
In order to clarify the poisoning mechanism of the LaB6 cathode, the temperature dependence of oxidation on a single‐crystal surface was examined by Auger electron spectroscopy. The oxidation gives the chemical effect on the La and B Auger peaks. Evidence from the Auger spectra indicates that the oxygen is more strongly bound to La ions than B ions on the surface. A correlation between the oxidation and the poisoning characteristics was established, and possible reasons for the correlation are discussed.Keywords
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