Phonon dispersion in monolayer graphite formed on Ni(111) and Ni(001)

Takashi Aizawa, Ryutaro Souda, Yoshio Ishizawa, Hideki Hirano, Taro Yamada, Ken ichi Tanaka, Chuhei Oshima

    Research output: Contribution to journalArticle

    86 Citations (Scopus)

    Abstract

    The phonon dispersion relations of monolayer graphite on Ni(111) and on Ni(001) were measured by using electron energy loss spectroscopy. Both samples gave almost the same results. The data were analysed with a force constant model in a slab geometry, and it was revealed that the vertical bond bending force constant and the bond twisting force constant were greatly softened. These force-constant changes are comparable with the previously reported case of monolayer graphite on (111) surfaces of transition-metal carbides. However, the interaction between the Ni substrate and the graphite overlayer is not so strong as that on the carbide (111) surface. The similar phonon structures between graphitic layers on Ni(111) and on Ni(001) suggest that both substrates have similar charge transfer capability.

    Original languageEnglish
    Pages (from-to)194-202
    Number of pages9
    JournalSurface Science
    Volume237
    Issue number1-3
    DOIs
    Publication statusPublished - 1990 Nov 1

    Fingerprint

    Graphite
    Monolayers
    graphite
    Carbides
    carbides
    Electron energy loss spectroscopy
    Substrates
    Transition metals
    Charge transfer
    twisting
    slabs
    Geometry
    energy dissipation
    transition metals
    charge transfer
    electron energy
    geometry
    spectroscopy
    interactions

    ASJC Scopus subject areas

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

    Cite this

    Aizawa, T., Souda, R., Ishizawa, Y., Hirano, H., Yamada, T., Tanaka, K. I., & Oshima, C. (1990). Phonon dispersion in monolayer graphite formed on Ni(111) and Ni(001). Surface Science, 237(1-3), 194-202. https://doi.org/10.1016/0039-6028(90)90531-C

    Phonon dispersion in monolayer graphite formed on Ni(111) and Ni(001). / Aizawa, Takashi; Souda, Ryutaro; Ishizawa, Yoshio; Hirano, Hideki; Yamada, Taro; Tanaka, Ken ichi; Oshima, Chuhei.

    In: Surface Science, Vol. 237, No. 1-3, 01.11.1990, p. 194-202.

    Research output: Contribution to journalArticle

    Aizawa, T, Souda, R, Ishizawa, Y, Hirano, H, Yamada, T, Tanaka, KI & Oshima, C 1990, 'Phonon dispersion in monolayer graphite formed on Ni(111) and Ni(001)', Surface Science, vol. 237, no. 1-3, pp. 194-202. https://doi.org/10.1016/0039-6028(90)90531-C
    Aizawa T, Souda R, Ishizawa Y, Hirano H, Yamada T, Tanaka KI et al. Phonon dispersion in monolayer graphite formed on Ni(111) and Ni(001). Surface Science. 1990 Nov 1;237(1-3):194-202. https://doi.org/10.1016/0039-6028(90)90531-C
    Aizawa, Takashi ; Souda, Ryutaro ; Ishizawa, Yoshio ; Hirano, Hideki ; Yamada, Taro ; Tanaka, Ken ichi ; Oshima, Chuhei. / Phonon dispersion in monolayer graphite formed on Ni(111) and Ni(001). In: Surface Science. 1990 ; Vol. 237, No. 1-3. pp. 194-202.
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