Atomic structures of TiO2(1 1 0) surface between p(1×1) and p(1×2) studied by scanning tunneling microscopy
| Autor: | Ryutaro Souda, E Asari |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Reflection high-energy electron diffraction
Low-energy electron diffraction Chemistry Scattering Annealing (metallurgy) General Physics and Astronomy Surfaces and Interfaces General Chemistry Condensed Matter Physics Surfaces Coatings and Films law.invention Ion Crystallography Electron diffraction law Scanning tunneling microscope Spectroscopy |
| Zdroj: | Applied Surface Science. 193:70-76 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/s0169-4332(02)00012-0 |
| Popis: | Structures of TiO2(1 1 0) surfaces between p(1×1) and p(1×2) are observed by scanning tunneling microscopy (STM). We confirm existence of two types of p(1×2) rows by comparison with results of impact collision ion scattering spectroscopy (ICISS), i.e., one has Ti2O unit rows on low reduced surface, and another has Ti2O3 unit rows on the heavily reduced surface. We also found that: (1) the low energy electron diffraction (LEED) on the Ti2O surface shows the p(1×2) pattern though the every two spots for [ 1 1 0] -direction is intense, and (2) the reflection high-energy electron diffraction (RHEED) on the Ti2O surface shows the only p(1×1) pattern though the surface manifestly has p(1×2) periodicity. The growing process of p(1×2) surface with Ti2O unit rows from the p(1×1) surface is also elucidated. |
| Databáze: | OpenAIRE |
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