F bands in KCl-KBr mixed crystals |
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| Authors: | Brinda Subramaniam K G Bansigir |
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| Affiliation: | (1) School of Studies in Physics, Jiwaji University, 474 011 Gwalior, India;(2) Present address: Department of Physics, Oklahoma State Univeristy, 74078 Stillwater, OK, USA |
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| Abstract: | Gamma ray-induced F bands in melt grown mixed crystals of KCl and KBr are studied at room temperature. The effect of dislocations on F-centre density in mixed crystals has been discussed. In addition, the influence of composition of mixed crystals on F band parameters has been studied. The behaviour of observed F bands is correlated to local strained regions and to the configuration of F centre in mixed crystals. |
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| Keywords: | Mixed crystals colour centres dislocation density optical density absorption spectra |
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