Jahn-Teller effect in V4 doped Gd3Ga5O12 garnetReport as inadecuate




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Abstract : We consider the static and dynamic E * ∈ and T * ∈ Jahn-Teller effects in order to analyze the absorption and emission spectra of octahedrally coordinated V4+ and absorption of tetrahedrally coordinated V4+. Using two-dimensional configuration coordinate diagrams of octahedrally and tetrahedrally coordinated V4+ we are able to explain the structure of the emission and absorption spectra and the fluorescence kinetics measurements of V4+ doped GGG. Our calculations support the assumption that V4+ in tetrahedral sites is responsible for the additional absorption band in the red region.





Author: M. Grinberg A. Brenier G. Boulon C. Pedrini C. Madej A. Suchocki

Source: https://hal.archives-ouvertes.fr/



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