Published October 2001
| Version v1
Journal article
Study of defects in the electron-irradiated transparent MgAl2O4 ceramics after annealing
- 1. Sichuan Univ., Chengdu (China). Dept. of Physics
- 2. Sichuan Univ., Chengdu (China). Analytical and Testing Center
Description
The transparent MgAl2O4 ceramics were exposed to electron beam with energy in 1.7 MeV and injection capacity in 6.3 x 1016 cm-2, and were isochronally annealed after irradiation. The optical spectra and the defects of these electron-irradiated samples were studied by UV-VIS and PAT. The investigation indicates that the electron-irradiated Mgal2O4 ceramics introduce two optical-absorption bands at 237 nm and 370 nm, they may be due to V-type color center and F center. All these color centers can be destroyed by annealing
Additional details
Publishing Information
- Journal Title
- Journal of Sichuan University. Natural Science Edition
- Journal Volume
- 38
- Journal Issue
- 5
- Journal Page Range
- p. 698-701
- ISSN
- 0490-6756
- CODEN
- SCTHAO
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 35033159
- Subject category
- S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ALUMINIUM OXIDES; ANNEALING; ANNIHILATION; CERAMICS; ELECTRON BEAMS; F CENTERS; IRRADIATION; LIFETIME; MAGNESIUM OXIDES; POSITRONS; ULTRAVIOLET SPECTRA; V CENTERS; VISIBLE SPECTRA
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALUMINIUM COMPOUNDS; ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BEAMS; CHALCOGENIDES; COLOR CENTERS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELEMENTARY PARTICLES; FERMIONS; HEAT TREATMENTS; INTERACTIONS; LEPTON BEAMS; LEPTONS; MAGNESIUM COMPOUNDS; MATTER; OXIDES; OXYGEN COMPOUNDS; PARTICLE BEAMS; PARTICLE INTERACTIONS; POINT DEFECTS; SPECTRA; VACANCIES