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

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Pages (from-to)2288-2294
    Number of pages7
    JournalJournal of Physical Chemistry Letters
    Volume1
    Issue number15
    DOIs
    Publication statusPublished - 2010 Aug 5

    ASJC Scopus subject areas

    • Materials Science(all)
    • Physical and Theoretical Chemistry

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