Two-dimensional vacancy islands induced by the growth of Cr on Cu(111)

Jong Keon Yoon, Goo Eun Jung, Howon Kim, Kyung Hoon Chung, Se Jong Kahng

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)

    Abstract

    Surface structures induced by the growth of Cr on Cu(111) at room temperature are studied with scanning tunneling microscopy. At sub-monolayer Cr coverage, islands and vacancy islands with lateral sizes of about 10 nm in length are observed. The islands show one- or two-monolayer heights with irregular shapes, while vacancy islands have one-monolayer depth and hexagonal shapes with openings. Atomic structures inside and near the vacancy islands are the same as those of bare Cu(111), implying that Cu atoms detach from the vacancy islands and attach to other step edges and islands. Possible origins and atomic processes for the observed structures are discussed.

    Original languageEnglish
    Pages (from-to)1375-1379
    Number of pages5
    JournalThin Solid Films
    Volume519
    Issue number4
    DOIs
    Publication statusPublished - 2010 Dec 1

    Bibliographical note

    Funding Information:
    The authors gratefully acknowledge financial support from the National Research Foundation of Korea , and from the Ministry of Education Science and Technology (grant nos. 2005-2002369 and 2007-0054038 ).

    Keywords

    • Chromium
    • Cupper
    • Growth
    • Scanning tunneling microscopy
    • Surface structure

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Surfaces and Interfaces
    • Surfaces, Coatings and Films
    • Metals and Alloys
    • Materials Chemistry

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