Color centers in irradiated durene crystals
β Scribed by Kawakubo, T.
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 420 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0031-8965
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π SIMILAR VOLUMES
## Abstract Color centers in undoped YAP crystals induced by gammaβirradiation were investigated by means of additional absorption spectra and thermal treatments. Color centers related to the 265 and 311 nm absorption bands were caused by Fe impurity ions and the charge state recharge of the Fe^3+^
## Abstract New absorption centers giving bands with maxima at 555 nm (Y) and 625 nm (Yβ²) at liquidβnitrogen temperature, were observed in OHβcontaining KCl single crystals annealed in vacuum a t 600 Β°C and subsequently uv irradiated. The thermal bleaching of these bands yields F centers. Optical b