Ordered overlayers of Ca on TiO2(110)-1×1

O. Bikondoa, C. L. Pang, C. A. Muryn, B. G. Daniels, S. Ferrero, E. Michelangeli, G. Thornton

    Research output: Contribution to journalArticlepeer-review


    Scanning tunneling microscopy (STM) and low-energy electron diffraction (LEED) have been used to examine the structure of ordered adlayers of Ca on TiO2(110)-1 × 1 formed by metal vapor deposition. A comparison is made with structures formed by segregation of Ca from the bulk, with similar structures being found for the two preparation methods below a monolayer coverage. At low coverages, rows of width ∼0.6-0.9 nm develop in the [110] and [001] azimuths. At coverages equivalent to a single calcium layer, a c(6×2) overlayer is formed. At coverages above a single layer, a disordered structure develops and a LEED pattern with (2 -0.1 1 0) symmetry is observed.

    Original languageEnglish
    Pages (from-to)16768-16771
    Number of pages4
    JournalJournal of Physical Chemistry B
    Issue number43
    Publication statusPublished - 28 Oct 2004


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