Regensburg 2010 – scientific programme
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O: Fachverband Oberflächenphysik
O 59: Poster Session II (Nanostructures at surfaces: Dots, particles, clusters; Nanostructures at surfaces: arrays; Nanostructures at surfaces: Wires, tubes; Nanostructures at surfaces: Other; Plasmonics and nanooptics; Metal substrates: Epitaxy and growth; Metal substrates: Solid-liquid interfaces; Metal substrates: Adsoprtion of organic / bio molecules; Metal substrates: Adsoprtion of inorganic molecules; Metal substrates: Adsoprtion of O and/or H; Metal substrates: Clean surfaces; Density functional theory and beyond for real materials)
O 59.55: Poster
Wednesday, March 24, 2010, 17:45–20:30, Poster B1
LEEM/LEED investigation of Fe3O4 thin film growth on a Pt(111) substrate: morphology, growth and atomic termination — •Alessandro Sala, Helder Marchetto, Thomas Schmidt, and Hans-Joachim Freund — Fritz Haber Institut der Max Planck Gesellschaft, Berlin, Germany
Iron oxide is widely used as a catalyst and as a support for catalytically active systems. Although the system has been intensively studied with various techniques, controversies arise in the literature regarding the surface termination and structural inhomogeneities. This clearly hinders the direct linking of surface electronic and structural properties to chemical properties. Our aim is therefore a comprehensive and consistent characterization of the Fe3O4 film growth on a Pt(111) substrate with well defined preparation conditions by using the unique SMART instrument. This Low Energy and Photo-Emission Electron Microscope (LEEM/PEEM) is specially designed to obtain chemical and structural information with high lateral resolution.