Abstract
The chemical properties and electronic structures of atomically flat SrTiO3 (0 0 1) substrates with various surface treatments have been investigated by high-resolution synchrotron-radiation photoemission spectroscopy. We have found that an annealing process causes the segregation of Sr oxides at the TiO2-terminated surface. We demonstrate that the use of water-cleaning process is effective as a removal technique for Sr oxides segregated on TiO2-terminated surfaces with preserving the surface morphology and chemical bonding states of the topmost TiO2-terminated surfaces.
| Original language | English |
|---|---|
| Pages (from-to) | 443-446 |
| Number of pages | 4 |
| Journal | Journal of Electron Spectroscopy and Related Phenomena |
| Volume | 144-147 |
| DOIs | |
| Publication status | Published - 2005 Jun 1 |
| Externally published | Yes |
Keywords
- Photoemission spectroscopy
- SrTiO substrates
- TiO -terminated surface
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Radiation
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Spectroscopy
- Physical and Theoretical Chemistry
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Cite this
Kobayashi, D., Hashimoto, R., Chikamatsu, A., Kumigashira, H., Oshima, M., Ohnishi, T., Lippmaa, M., Ono, K., Kawasaki, M., & Koinuma, H. (2005). Sr surface segregation and water cleaning for atomically controlled SrTiO3 (0 0 1) substrates studied by photoemission spectroscopy. Journal of Electron Spectroscopy and Related Phenomena, 144-147, 443-446. https://doi.org/10.1016/j.elspec.2005.01.167