Oxygen vacancy contribution on anisotropic anomalous scattering of rutile TiO2
Creators
- 1. Nachwuchsgruppe Nanostrukturphysik, Institute of Structural Physics, TU Dresden (Germany)
- 2. Hamburger Synchrotronstrahlungslabor HASYLAB at DESY, 22603 Hamburg (Germany)
- 3. Institute of Experimental Physics, TU Bergakademie Freiberg (Germany)
Description
The unique potential of Anisotropic Anomalous Scattering (AAS) for investigation of randomly distributed point defects has been discussed theoretically by Dmitrienko and Ovchinnikova. Here, we use this approach to study influences of oxygen vacancies in rutile TiO2 on the resonant scattering contributions at the Ti-K absorption edge. First energy dependent AAS experiments have been performed on a series of single crystal wafers with different oxygen concentrations obtained by annealing at a temperature of 800 C in a vacuum of about 10-6 mbar for different durations. Measurements were carried out at DESY/HASYLAB on 'forbidden' 001 and allowed 111 reflections. An interpretation based on vacancy-induced static Ti displacements from high- to low-symmetry positions is presented.
Additional details
Identifiers
Publishing Information
- Journal Title
- Verhandlungen der Deutschen Physikalischen Gesellschaft
- Journal Issue
- Regensburg 2010 issue
- Series
- Also available as printed version: Verhandlungen der Deutschen Physikalischen Gesellschaft v. 45(3)
- Journal Page Range
- [1 p.]
- ISSN
- 0420-0195
- CODEN
- VDPEAZ
Conference
- Title
- DPG Spring meeting 2010 of the condensed matter section with the divisions biological physics, chemical and polymer physics, crystallography, dielectric solids, dynamics and statistical physics, low temperature physics, magnetism, metal and material physics, physics of socio-economic systems, radiation and medical physics, semiconductor physics, surface science, thin films, vacuum science and technology as well as the working group industry and business, with job market, symposia, teachers' days, tutorials, exhibition of scientific instruments and literature
- Dates
- 21-26 Mar 2010
- Place
- Regensburg (Germany)
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 42046502
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ANISOTROPY; ANNEALING; BRAGG REFLECTION; ENERGY DEPENDENCE; MONOCRYSTALS; PRESSURE RANGE MICRO PA; RESONANCE SCATTERING; RUTILE; TEMPERATURE RANGE 1000-4000 K; TETRAGONAL LATTICES; TITANIUM OXIDES; VACANCIES; X-RAY DIFFRACTION
- Descriptors DEC
- CHALCOGENIDES; COHERENT SCATTERING; CRYSTAL DEFECTS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CRYSTALS; DIFFRACTION; HEAT TREATMENTS; INELASTIC SCATTERING; MATERIALS; MINERALS; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; POINT DEFECTS; PRESSURE RANGE; RADIOACTIVE MATERIALS; RADIOACTIVE MINERALS; REFLECTION; SCATTERING; TEMPERATURE RANGE; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Notes
- Session: KR 3.5 Mi 15:00; No further information available