Auger electron spectroscopy study of oxidation on lanthanum hexaboride

C. Oshima, S. Kawai

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    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.

    Original languageEnglish
    Pages (from-to)215-216
    Number of pages2
    JournalApplied Physics Letters
    Volume23
    Issue number5
    DOIs
    Publication statusPublished - 1973

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    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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