Temperature and impurity concentration dependences of the efficiency of Frenkel defect accumulation in alkali halide crystals |
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Authors: | E Kotomin |
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Institution: | Institute of Solid State Physics, Latvian State University, Rainis 19, Riga, USSR |
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Abstract: | A simple phenomenological model of the efficiency of accumulation of F centers in alkali halide crystals as affected by temperature and homologous cation impurity is considered. The conclusion is drawn that the temperature dependence is probably due to elastic interaction of primary Frenkel defects — F , H centres affecting their diffusion-controlled separation (similar to metals) whereas the impurity concentration dependence is due to the tunneling recombination of F , HA pairs. |
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