Structure analysis of oxygen adsorbed TiC(111) by impact collision ion scattering spectroscopy

R. Souda, C. Oshima, S. Otani, Y. Ishizawa, M. Aono

    Research output: Contribution to journalArticle

    43 Citations (Scopus)

    Abstract

    The atomic structures of the oxygen chemisorbed TiC(111) surface exhibiting both 1 × 1 and √3 × √3 R30° structures have been studied using impact collision He+ ion scattering spectroscopy (ICISS). At the TiC(111)1 × 1-O surface, oxygen atoms are in two states on the three-fold hollow site which is characterized by the absence of carbon beneath it in the second layer. The two states arise from the difference in the position of the oxygen atom: one located 1.0 Å above the topmost Ti layer and the other 0.8 Å above it. The latter disappears at the TiC(111)√3 × √3 R30°-O surface which is obtained after heating of the TiC(111)1 × 1-O surface at about 1000°C.

    Original languageEnglish
    Pages (from-to)154-164
    Number of pages11
    JournalSurface Science
    Volume199
    Issue number1-2
    DOIs
    Publication statusPublished - 1988

    Fingerprint

    ion scattering
    Spectroscopy
    Scattering
    Ions
    Oxygen
    collisions
    oxygen
    spectroscopy
    oxygen atoms
    Atoms
    atomic structure
    hollow
    Carbon
    Heating
    heating
    carbon

    ASJC Scopus subject areas

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

    Cite this

    Structure analysis of oxygen adsorbed TiC(111) by impact collision ion scattering spectroscopy. / Souda, R.; Oshima, C.; Otani, S.; Ishizawa, Y.; Aono, M.

    In: Surface Science, Vol. 199, No. 1-2, 1988, p. 154-164.

    Research output: Contribution to journalArticle

    Souda, R. ; Oshima, C. ; Otani, S. ; Ishizawa, Y. ; Aono, M. / Structure analysis of oxygen adsorbed TiC(111) by impact collision ion scattering spectroscopy. In: Surface Science. 1988 ; Vol. 199, No. 1-2. pp. 154-164.
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    AU - Aono, M.

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    AB - The atomic structures of the oxygen chemisorbed TiC(111) surface exhibiting both 1 × 1 and √3 × √3 R30° structures have been studied using impact collision He+ ion scattering spectroscopy (ICISS). At the TiC(111)1 × 1-O surface, oxygen atoms are in two states on the three-fold hollow site which is characterized by the absence of carbon beneath it in the second layer. The two states arise from the difference in the position of the oxygen atom: one located 1.0 Å above the topmost Ti layer and the other 0.8 Å above it. The latter disappears at the TiC(111)√3 × √3 R30°-O surface which is obtained after heating of the TiC(111)1 × 1-O surface at about 1000°C.

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