Oxidation state during growth of very thin oxide on Ti(0001) surface
Creators
- 1. Tohoku Univ., Institute of Multidisciplinary Research for Advanced Materials, Sendai, Miyagi (Japan)
- 2. Akita National College of Technology, Dept. of Material Engineering, Akita (Japan)
- 3. Japan Atomic Energy Research Inst., Kansai Research Establishment, Mikazuki, Hyogo (Japan)
- 4. Stanford Univ., Stanford Linear Accelerator Center, CA (United States)
- 5. Kumamoto Univ., Dept. of Material Science and Technology, Kumamoto (Japan)
- 6. Chiba Inst. of Technology, Dept. of Precision Engineering, Narashino, Chiba (Japan)
Description
The oxidation reaction on the Ti(0001) surface at 400degC and 3.7x10-6 Pa of O2 pressure was observed in real time by photoelectron spectroscopy using synchrotron radiation to investigate the oxygen uptake curve and oxidation state during growth of very thin oxide. The oxygen uptake curve increased rapidly with a plateau at O2 doses of 45-85 L, where the Ti 2p intensity for the metallic Ti component due to the substrate also showed a plateau between rapid decreases. The restart of oxide growth following the plateau was observed to be associated with a drastic change of the oxidation state from TiO to TiO2. Thus high-temperature oxidation on the Ti(0001) surface progresses through the initial rapid growth with preferential appearance of TiO and Ti2O3, subsequent temporary saturation of oxide growth and then rapid growth of oxide with significant changes of the oxidation state. (author)
Additional details
Publishing Information
- Journal Title
- Shinku
- Journal Volume
- 47
- Journal Issue
- 6
- Journal Page Range
- p. 457-461
- ISSN
- 0559-8516
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 35079008
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- CRYSTAL GROWTH; ELECTRON DIFFRACTION; OXIDATION; PHOTOELECTRON SPECTROSCOPY; SURFACE TREATMENTS; SYNCHROTRON RADIATION; THIN FILMS; TITANIUM; TITANIUM OXIDES
- Descriptors DEC
- BREMSSTRAHLUNG; CHALCOGENIDES; CHEMICAL REACTIONS; COHERENT SCATTERING; DIFFRACTION; ELECTROMAGNETIC RADIATION; ELECTRON SPECTROSCOPY; ELEMENTS; FILMS; METALS; OXIDES; OXYGEN COMPOUNDS; RADIATIONS; SCATTERING; SPECTROSCOPY; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS
Optional Information
- Notes
- 11 refs., 3 figs.