Determination of a (2√2 × √2)R45° structure formed by coadsorption of Li and Mg on a Cu(0 0 1) surface

Ming Shu Chen, Seigi Mizuno, Hiroshi Tochihara

    研究成果: ジャーナルへの寄稿学術誌査読

    8 被引用数 (Scopus)

    抄録

    The coadsorption of Li and Mg on Cu(0 0 1) at room temperature was studied by low-energy electron diffraction (LEED). A (2√2 × √2)R45° structure was observed and determined by a tensor LEED analysis. It is an ordered mixed phase, in which Mg atoms are located on fourfold substitutional sites, while Li atoms occupy surface hollow sites, instead of the separation into c(2 × 2)-Mg and (2 × 1)-Li phases formed in the individual adsorption. The (2√2 × √2)R45° structure is comprised of alternative atomic-rows of substitutional Mg atoms and hollow-site Li atoms aligned along the [0 1 0] direction. The stability of this structure is discussed in terms of adsorption energy of Li and Mg atoms and the displacement of surface Cu atoms.

    本文言語英語
    ページ(範囲)91-98
    ページ数8
    ジャーナルSurface Science
    493
    1-3
    DOI
    出版ステータス出版済み - 11月 1 2001

    !!!All Science Journal Classification (ASJC) codes

    • 凝縮系物理学
    • 表面および界面
    • 表面、皮膜および薄膜
    • 材料化学

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