| Numéro |
J. Phys. I France
Volume 3, Numéro 9, September 1993
|
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|---|---|---|
| Page(s) | 1973 - 1983 | |
| DOI | https://doi.org/10.1051/jp1:1993225 | |
J. Phys. I France 3 (1993) 1973-1983
Jahn-Teller effect in V 4+ doped Gd 3Ga 5O 12 garnet
M. Grinberg1, A. Brenier2, G. Boulon2, C. Pedrini2, C. Madej2 and A. Suchocki31 Institute of Physics, N. Copernicus University, Grudziadzka 5/7, 87-100 Torun, Poland
2 Laboratoire de Physico-Chimie des Matériaux Luminescents, (Unité de recherche associée au CNRS n$^{\circ}$ 442), Université Claude Bernard-Lyon I, 43 Bd 11 Novembre 1918, 69622 Villeurbanne Cedex, France
3 Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668 Warszawa, Poland
(Received 28 December 1992, revised 7 May 1993, accepted 19 May 1993)
Abstract
We consider the static and dynamic
and
Jahn-Teller effects in order to analyze the absorption and emission spectra of octahedrally coordinated V
4+ and absorption of tetrahedrally coordinated V
4+. Using two-dimensional configuration coordinate diagrams of octahedrally and tetrahedrally coordinated V
4+ we are able to explain the structure of the emission and absorption spectra and the fluorescence kinetics measurements of
V
4+ doped GGG. Our calculations support the assumption that V
4+ in tetrahedral sites is responsible for the additional absorption band in the red region.
© Les Editions de Physique 1993