Field evaporation experiments with a magnetic sector atom-probe FIM

Toshio Sakurai, Erwin W. Müller

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    A magnetic sector atom-probe FIM has been successfully operated for dc field evaporation of tip materials such as Rh, W, Ir, Mo and Ti. A limited number of evaporated metal ions were clearly identified forming a line spectrum. Field evaporation of Rh in the presence of 3He and 4He gases showed that the formation of the helium compound (RhHe)2+ is quite sensitive to He gas pressure; no helium compound were observed below 5 × 10-7 Torr and all ions detected as helium compound above 5 × 10-5 Torr at 78 K.

    Original languageEnglish
    Pages (from-to)38-44
    Number of pages7
    JournalSurface Science
    Volume51
    Issue number1
    DOIs
    Publication statusPublished - 1975

    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Condensed Matter Physics
    • Surfaces and Interfaces

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