Published December 16, 2002
| Version v1
Journal article
Picosecond snapshot of the speckles from ferroelectric BaTiO3 by means of X-ray lasers
Creators
- 1. Advanced Photon Research Center, Japan Atomic Energy Research Institute, 8-1, Umemidai, Kizu, Kyoto, 619-0215 (Japan)
- 2. Department of Physics, Tokyo Gakugei University, 4-1-1 Nukui-Kita Machi, Koganei-Shi, Tokyo 184-8501 (Japan)
- 3. Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-hiroshima, 739-8526 (Japan)
- 4. Department of Physics, Okayama University, 3-1-1 Tsushimanaka, Okayama, 700-8530 (Japan)
- 5. Photon Factory, High Energy Accelerator Research Organization and Department of Opto-Science, Graduate University for Advanced Studies, 1-1 Oho, Tsukuba-shi, 305-0801 (Japan)
Description
A picosecond x-ray laser speckle has been conducted to study the dynamics of a disordered surface domain structure (BaTiO3 with 90 deg. c/a domains) as a function of temperature for the first time. The transient surface structures induced by ferroelectric domains decrease as temperature increases towards the Curie temperature Tc and completely disappear above Tc. The dramatic change of the spatial configuration of the c/a domains was observed to occur from a temperature 2 deg. C below Tc, near which the average correlated domain size at equilibrium decreases as (Tc-T)0.37±0.02
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 89
- Journal Issue
- 25
- Journal Page Range
- p. 257602-257602.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35030336
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BARIUM COMPOUNDS; CURIE POINT; DOMAIN STRUCTURE; FERROELECTRIC MATERIALS; TEMPERATURE DEPENDENCE; TITANIUM OXIDES; X-RAY LASERS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; DIELECTRIC MATERIALS; LASERS; MATERIALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE
Optional Information
- Notes
- (c) 2002 The American Physical Society