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 |
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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 |
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