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Nanostructures on La-doped SrTiO3 surfaces
Citation
Gunhold, A and Goemann, K and Beuermann, L and Kempter, V and Borchardt, G and Maus-Friedrichs, W, Nanostructures on La-doped SrTiO3 surfaces, Analytical and Bioanalytical Chemistry, 375, (7) pp. 924-928. ISSN 1618-2642 (2003) [Refereed Article]
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Copyright Statement
Copyright 2003 Springer
DOI: doi:10.1007/s00216-003-1807-3
Abstract
SrTiO3(100) single crystals with high donor dopant concentrations (5 at% La) were annealed at 1000°C for up to 150 h in ultrahigh vacuum (UHV). By applying scanning tunneling microscopy (STM) nanostructures are observed on top of the surface with typical diameters of 20 nm and typical heights of 8 nm. To characterize their electronic structure and chemical composition, the surface was analyzed by metastable impact electron spectroscopy (MIES), ultraviolet photoelectron spectroscopy (UPS), scanning tunneling spectroscopy (STS), and depth profiling Auger electron spectroscopy (AES). Investigations of the stoichiometry suggest that the secondary phases consist of LaTiO3. We present a defect chemistry model which attempts to explain the observed effects. © Springer-Verlag 2003.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Research Division: | Physical Sciences |
| Research Group: | Condensed Matter Physics |
| Research Field: | Surfaces and Structural Properties of Condensed Matter |
| Objective Division: | Manufacturing |
| Objective Group: | Ceramics, Glass and Industrial Mineral Products |
| Objective Field: | Ceramics |
| Author: | Gunhold, A (Dr Anissa Goemann) |
| Author: | Goemann, K (Dr Karsten Goemann) |
| ID Code: | 70169 |
| Year Published: | 2003 |
| Web of Science® Times Cited: | 9 |
| Deposited By: | Central Science Laboratory |
| Deposited On: | 2011-06-06 |
| Last Modified: | 2012-07-31 |
| Downloads: | 0 |
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