Epitaxial growth of sexiphenyl on Al(111): from monolayer to crystalline films |
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Authors: | Winter Barbara Ivanco Jan Netzer Falko P Ramsey Michael G Salzmann Ingo Resel Roland |
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Institution: | Institute of Experimental Physics, Karl Franzens University Graz, Universit?tsplatz 5, A-8010 Graz, Austria. |
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Abstract: | A combination of in situ surface sensitive-techniques, UV photoemission and low energy electron diffraction, with ex situ bulk sensitive X-ray diffraction reveals the formation of epitaxial thin films of sexiphenyl on Al(111) starting from the first monolayer. For room temperature growth, highly ordered films are formed with a unique alignment of the sexiphenyl molecules with the long axes of all molecules aligned parallel to both the surface and the <10> azimuthal directions of Al(111). This is related to a densely packed highly commensurate first monolayer, which acts as a template for the unique (21) crystallite orientation observed. |
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