Enhancement of oxygen surface exchange kinetics of SrTiO(3) by alkaline earth metal oxides |
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| Authors: | Argirusis Christos Wagner Stefan Menesklou Wolfgang Warnke Carsten Damjanovic Tanja Borchardt Günter Ivers-Tiffée Ellen |
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| Institution: | TU Clausthal, Institut für Metallurgie, Robert-Koch-Str. 42, 38678, Clausthal-Zell., Germany. christos.argirusis@tu-clausthal.de. |
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| Abstract: | The oxygen incorporation reaction in undoped SrTiO(3) was investigated by electrical measurements (pressure modulation technique) in the temperature range from 650-920 degrees C and by means of tracer exchange experiments in the temperature range from 458-600 degrees C. The surface of the undoped SrTiO(3) single crystals was modified by alkaline earth metal compounds leading to a tremendous enhancement of the effective surface exchange rate for oxygen incorporation as compared to the uncoated surface. |
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