| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1497444 | Optical Materials | 2007 | 4 Pages |
Abstract
The nature of luminescence centers formed by Eu3+ in the partially disordered crystal langatate (La3Ga5.5Ta0.5O14) is investigated using fluorescence spectroscopy. In the low-temperature fluorescence spectra three nonequivalent luminescent centers can be evidenced. This fact can be explained considering the perturbations induced at the Eu3+ site by the nonequivalent configurations produced by Ga3+ and Ta5+ randomly placed in the nearest two octahedral positions.
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
S. Georgescu, O. Toma, L. Gheorghe, A. Achim, A.M. Chinie, A. Stefan,