Corner hole adatom stacking fault structure of Bi on Au(1 1 1)

Jeong Heum Jeon, Kyung Hoon Chung, Howon Kim, Se Jong Kahng

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)

    Abstract

    The surface atomic structure of Bi on Au(1 1 1) is studied with scanning tunneling microscopy. At about 0.5 monolayer of Bi, a well-ordered 6 × 6 atomic structure is observed. The structure has three notable features: corner holes, Bi adatoms, and stacking faults, very similar to a semiconductor surface of Si(1 1 1)-7 × 7. Out of 18 Bi surface atoms in a unit cell, six atoms are at hollow sites and are adatoms, and another six atoms are near-bridge sites. The last six atoms surround corner holes and are lower than other surface atoms by about 0.2 Å. A possible atomic model is proposed based on our observation.

    Original languageEnglish
    Pages (from-to)145-150
    Number of pages6
    JournalSurface Science
    Volume603
    Issue number1
    DOIs
    Publication statusPublished - 2009 Jan 1

    Bibliographical note

    Funding Information:
    The authors acknowledge financial support by the Korean Government (KRF-2004-005-C00060, R01-2007-000-11545-0 and M10503000187-05M0300-18710), and from a Korea University grant.

    Keywords

    • Growth
    • Scanning tunneling microscopy
    • Surface structure

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Surfaces and Interfaces
    • Surfaces, Coatings and Films
    • Materials Chemistry

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