THERMIONIC WORK FUNCTION OF LaB//6 SINGLE CRYSTALS AND THEIR SURFACES.

C. Oshima, E. Bannai, T. Tanaka, S. Kawai

    Research output: Contribution to journalArticle

    52 Citations (Scopus)

    Abstract

    The thermionic work functions and the Richardson constants for LaB//6 single crystals are measured using a diode system with a guard ring under stable thermionic conditions. They are 2. 86 plus or minus 0. 03 eV, 82 A/Cm**2K**2 for the (100) plane, 2. 68 plus or minus 0. 03 eV, 57 A/cm**2K**2 for the (110) plane, and 3. 4 plus or minus 0. 2 eV, 71 A/cm**2K**2 for the (111) plane. The (111) faceting on the (110) plane has an important effect on the reduction of the thermionic current from the (110) plane at 5 multiplied by 10** minus **6 Torr.

    Original languageEnglish
    Pages (from-to)3925-3927
    Number of pages3
    JournalJournal of Applied Physics
    Volume48
    Issue number9
    DOIs
    Publication statusPublished - 1977 Sep

    ASJC Scopus subject areas

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

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