Dispersion curves of the surface phonons of the TiC(100) surface

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

    研究成果: Article

    8 引用 (Scopus)

    抜粋

    The dispersion curves of the surface phonons of the TiC(100) surface have been determined over the entire Brillouin zone along the Γ-M direction by using electron energy loss spectroscopy. We have observed an acoustical branch (Rayleigh mode) and three optical branches (Lucas and Wallis modes and a new mode), which are assigned from a simple calculation based on the nearest-neighbour force constant model. The stiffening of the stretching force constant between the topmost layer and the second layer results in a new mode, which explains qualitatively the new observed optical mode.

    元の言語English
    ページ(範囲)519-527
    ページ数9
    ジャーナルSurface Science
    178
    発行部数1-3
    DOI
    出版物ステータスPublished - 1986 12 3

    ASJC Scopus subject areas

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

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    Oshima, C., Souda, R., Aono, M., Otani, S., & Ishizawa, Y. (1986). Dispersion curves of the surface phonons of the TiC(100) surface. Surface Science, 178(1-3), 519-527. https://doi.org/10.1016/0039-6028(86)90328-6