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The processes of formation and decay of excitons in a lithium niobate crystal with an iron impurity (0.06%) were investigated. Studies of thermally stimulated luminescence and thermally stimulated conductivity showed that the probability of exciton decay is higher than the probability of exciton formation and that the exciton spectrum in lithium niobate crystals with an iron impurity depends on the duration of illumination of the crystal.
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Магомадов et al. (2026) studied this question.
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