Light sensitive paramagnetic defects in BaTiO3
- 1 July 1990
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 107 (1) , 313-318
- https://doi.org/10.1080/00150199008221557
Abstract
Many paramagnetic defects were identified in nominally undoped BaTiO3; among them for the first time: O− trapped holes and Cr5+. All defects can change their charge states under illumination. They thus can take part in the photorefractive effect of BaTiO3. By monitoring the ESR defect concentrations in dependence of light wavelengths several charge conversion thresholds were identified.Keywords
This publication has 9 references indexed in Scilit:
- Theoretical active impurity levels of iron, chromium, and manganese for photorefractive effects in barium titanateJournal of the Optical Society of America B, 1988
- Paramagnetic resonance and local position ofin ferroelectricPhysical Review B, 1985
- Holes trapped near Mg2+ and Al3+ impurities in SrTiO3Solid State Communications, 1976
- ESR and optical absorption of bound-small polarons in YAlPhysical Review B, 1975
- Identification of Fe4+ and Fe5+ charge-transfer photochromic absorption bands in SrTiO3Solid State Communications, 1975
- ESR of Cr5+ in chromium-doped SrTiO3 single crystalsChemical Physics Letters, 1972
- Electron Spin Resonance of Co2+ Ions in Barium TitanatePhysica Status Solidi (b), 1967
- EPR Observation of Oxygen Vacancies in Iron-Doped BaTiO3Journal of Applied Physics, 1965
- Electron Spin Resonance of Fe3+ in BaTiO3 in the Rhombohedral and the Cubic Phases.Journal of the Physics Society Japan, 1964