Tailor-made ultrathin manganese oxide nanostripes: 'magic widths' on Pd(1 1 N) terraces |
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Authors: | Franchini C Li F Surnev S Podloucky R Allegretti F Netzer F P |
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Affiliation: | University of Vienna, Faculty of Physics and Center for Computational Materials Science, Vienna, Austria. |
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Abstract: | The growth of ultrathin two-dimensional manganese oxide nanostripes on vicinal Pd(1 1 N) surfaces leads to particular stable configurations for certain combinations of oxide stripe and substrate terrace widths. Scanning tunneling microscopy and high-resolution low-energy electron diffraction measurements reveal highly ordered nanostructured surfaces with excellent local and long-range order. Density functional theory calculations provide the physical origin of the stabilization mechanism of 'magic width' stripes in terms of a finite-size effect, caused by the significant relaxations observed at the stripe boundaries. |
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