The F band of mixed ionic crystals as a function of temperature |
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| Authors: | R. Rodríguez-Mijangos E. Muñoz-Sandoval R. Pérez-Salas M. Barboza-Flores C. Ruíz-Mejía |
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| Affiliation: | 1. Centro de Investigación en Física , Universidad de Sonora , Apartado Postal 5-088, Hermosillo, Sonora, 83190, Mexico;2. Instituto de Física de la UNAM , Apartado Postal 20-364, México , D.F. 01000, Mexico |
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| Abstract: | Abstract Experimental and theoretical study of the F absorption band were carried out in mixed ionic crystals as a function of temperature and molar composition. Both the point-ion and pseudopotential methods of Gourary–Adrian and Bartram–Stoneham–Gash, respectively, have been used to obtain the F band shift effect in KCl1?x Br x mixed crystals with molar fraction x and the temperature T of the crystal. The theoretical values were compared with the experimental ones, and a good agreement between experimental and theoretical calculations has been found. |
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| Keywords: | Mixed ionic crystals F band defects optical absorption |
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