Isothermal decay of colour centres in microcrystalline powders of alkali bromides |
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| Authors: | D.G. Wakde S.V. Moharil B.T. Deshmukh |
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| Affiliation: | Department of Physics, Nagpur University, Nagpur 440010, India |
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| Abstract: | The bleaching of F-centres on storing in darkness of electrolytically coloured single crystals and microcrystalline powders of solid solutions of KBr with other alkali bromides is reported. The colouration of the microcrystalline powders decays isothermally while that of single crystals is comparatively stable. The decay proceeds slower in the powders of mixed crystals than in the pure materials. A tentative explanation is suggested. |
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