LOW WORK FUNCTION AND SURFACE STRUCTURE OF THE LaB//6(210) SURFACE STUDIED BY ANGLE-RESOLVED X-RAY SPECTROSCOPY, ULTRAVIOLET SPECTROSCOPY, AND LOW-ENERGY ELECTRON DIFFRACTION.

C. Oshima, M. Aono, T. Tanaka, R. Nishitani, S. Kawai

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    18 Citations (Scopus)

    Abstract

    A clean surface of LaB//6(210) has the low work function of 2. 2 plus or minus 0. 1 eV at room temperature, which is lower than those of the (100), (110), and (111) surfaces. La atoms exist in a (1 multiplied by 1) ordered structure at the outermost layer of the (210) clean surface. The value of the low work function of LaB//6 is discussed on the basis of the data together with the Lang-Kohn theory. The work function changes from 2. 2 to 3. 1 eV with oxygen exposure and saturates above about 15 L; the periodicity of the surface-atomic lattice disappears almost completely.

    Original languageEnglish
    Pages (from-to)997-1000
    Number of pages4
    JournalJournal of Applied Physics
    Volume51
    Issue number2
    DOIs
    Publication statusPublished - 1980 Feb

    ASJC Scopus subject areas

    • Physics and Astronomy(all)
    • Physics and Astronomy (miscellaneous)

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