Impurity Cu+ centers in LiF single crystals |
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| Authors: | A I Nepomnyashchikh A A Shalaev A K Subanakov A S Paklin N S Bobina A S Myasnikova R Yu Shendrik |
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| Institution: | 1. Institute of Geochemistry, Siberian Branch, Russian Academy of Sciences, Irkutsk, 664033, Russia
2. Baikal Institute of Nature Management, Siberian Branch, Russian Academy of Sciences, Ulan-Ude, 670047, Russia
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| Abstract: | LiF single crystals with copper impurity (0.0004–0.002%) have been grown by the Czochralski method and investigated. The luminescence,
excitation, and optical absorption spectra have been recorded. The luminescence spectrum contains a band at 450 nm upon 250-nm
excitation. This band is attributed to Cu+ centers in the samples grown. The mechanisms of capture and recombination during thermoluminescence are considered. |
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