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

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

*この研究の対応する著者

    研究成果査読

    8 被引用数 (Scopus)

    抄録

    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.

    本文言語English
    ページ(範囲)519-527
    ページ数9
    ジャーナルSurface Science
    178
    1-3
    DOI
    出版ステータスPublished - 1986 12 3

    ASJC Scopus subject areas

    • 物理化学および理論化学
    • 凝縮系物理学
    • 表面および界面

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