| Surface structures are vital for understanding a variety of technologically important processes such as catalysis, thin film growth and essentially any other reaction that occurs at the interface between a solid and a liquid or gas phase. The research approach described in this manuscript involves a combination of computational (Direct Methods) and experimental (TEM) methods for investigation of the oxide surface structures.; The NiO(111) p(2 x 2) structure has been solved using Direct Methods applied to grazing incidence X-ray diffraction data. The resulting structure can be described as a complex arrangement of octopolar units on the surface.; Several reconstructed and faceted SrTiO3 (001) surface structures were experimentally obtained and studied by TEM. The (2 x 1) and the (4 x 2) surface structures were solved by a combination of Direct Methods analysis, HREM imaging and DFT calculations. Rules for the formation of SrTiO3 surface reconstructions were formulated.; TEM and XPS experiments provided insight into changes in surface stoichiometry and morphology of the Mg3(VO4)2 single crystal surfaces upon annealing. |
