Field ionization within the forbidden zone

Toshio Sakurai, Erwin W. Müller

    Research output: Contribution to journalArticlepeer-review

    23 Citations (Scopus)

    Abstract

    Mass spectra of helium and neon obtained by field ionization in the presence of hydrogen or another low ionization potential gas contain lines indicating noble gas ions with energies exceeding those of the ordinary field ions by 16 or 13 eV, respectively. These ions originate from the apex-adsorbed state within the forbidden zone following excitation by impinging electrons from free-space ionization of the auxiliary gas.

    Original languageEnglish
    Pages (from-to)497-507
    Number of pages11
    JournalSurface Science
    Volume49
    Issue number2
    DOIs
    Publication statusPublished - 1975 Apr 2

    ASJC Scopus subject areas

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

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