Adsorbate-promoted tunneling-electron-induced local faceting of D/Pd{110}-(1 × 2)

Adam R. Kurland, Patrick Han, John C. Thomas, Andrea N. Giordano, Paul S. Weiss

    研究成果: Article査読

    3 被引用数 (Scopus)

    抄録

    We have utilized tunneling electrons and thiophene adsorption to draw deuterium (D) from within the single-crystal bulk beneath Pd{110} up to subsurface adsorption sites. We found local faceting induced by this process, and determined the energy threshold of drawing bulk D to subsurface sites to be 0.38 ± 0.02 eV. We show that these facets propagate along the [1 10̄] direction of the substrate, and that Pd{110} adopts the (1 Å - 1) surface reconstruction on the induced facets, yet maintains the paired row (1 × 2) structure on unaffected regions. After producing subsurface D, the facet plane tilts 3.2 ± 0.8° off the substrate plane.

    本文言語English
    ページ(範囲)2288-2294
    ページ数7
    ジャーナルJournal of Physical Chemistry Letters
    1
    15
    DOI
    出版ステータスPublished - 2010 8 5

    ASJC Scopus subject areas

    • 材料科学(全般)
    • 物理化学および理論化学

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