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Changes in the surface topography and electronic structure of SrTiO3(110) single crystals heated under oxidizing and reducing conditions
Citation
Goemann, AA and Goemann, K and Beuermann, L and Kempter, V and Borchardt, G and Maus-Friedrichs, W, Changes in the surface topography and electronic structure of SrTiO3(110) single crystals heated under oxidizing and reducing conditions , Surface Science, 566-568 pp. 105-110. ISSN 0039-6028 (2004) [Refereed Article]
DOI: doi:10.1016/j.susc.2004.05.030
Abstract
Strontium titanate (SrTiO3) is a promising material for resistive high temperature oxygen sensors. Unfortunately, thermal treatment results in undesirable surface reconstruction and the formation of secondary phases. Each of the three stable surface orientations ((1 0 0), (1 1 0) and (1 1 1)) shows a characteristic reconstruction of the topmost layers. To investigate these changes in more detail, SrTiO3(110) single crystals were heated up to 1000 °C in ultrahigh vacuum and synthetic air, respectively. Atomic force microscopy (AFM) was applied to characterize the surface topography. Metastable impact electron spectroscopy (MIES) and Auger electron spectroscopy (AES) yielded information on the electronic structure and the chemical composition of the surface and the near surface region. Under all investigated conditions microfaceting of the (1 1 0) surface could be observed resulting in TiO2-terminated ridges. © 2004 Elsevier B.V. All rights reserved.
Item Details
Item Type: | Refereed Article |
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Research Division: | Physical Sciences |
Research Group: | Condensed matter physics |
Research Field: | Surface properties of condensed matter |
Objective Division: | Manufacturing |
Objective Group: | Ceramics, glass and industrial mineral products |
Objective Field: | Ceramics |
UTAS Author: | Goemann, AA (Dr Anissa Goemann) |
UTAS Author: | Goemann, K (Dr Karsten Goemann) |
ID Code: | 70171 |
Year Published: | 2004 |
Web of Science® Times Cited: | 19 |
Deposited By: | Central Science Laboratory |
Deposited On: | 2011-06-06 |
Last Modified: | 2011-08-01 |
Downloads: | 0 |
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