Annealing recovery of neutron irradiated LiNbO3:Hf single crystals
✍ Scribed by J.G. Marques; A. Kling; C.M. de Jesus; J.C. Soares; M.F. da Silva; E. Diéguez; F. Agulló-López
- Book ID
- 114170099
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 215 KB
- Volume
- 141
- Category
- Article
- ISSN
- 0168-583X
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Z-cut congruent LiNbO 3 single crystals were annealed in 95%N 2 +5%H 2 at high temperatures. X-ray diffraction showed that 2y of (0 0 0 6) peak is obviously reduced by 0.61 and 1.01 for the samples annealed at 600 and 900 1C, respectively. A new peak appears at the high-energy side of O 1s spectrum
## Abstract Hf(2mol%):Fe(0.05wt%):LiNbO~3~ crystals with various [Li]/[Nb] ratios of 0.94, 1.05, 1.2 and 1.38 have been grown. The photorefractive resistant ability increases with the accretion of [Li]/[Nb] ratio. When the ratio of [Li]/[Nb] is 1.20 or 1.38, the OH^‐^ absorption band shifts to abou