Evidence for energy migration and transfer in TbTa3O9, EuTa3O9 and Tb0.9Eu0.1Ta3O9 powder samples.

Authors
Alvarez, E Ibarra-Palos, A Villafuerte-Castrejon, ME Caldino, U Rubio, J Munoz, A
Citation
E. Alvarez et al., Evidence for energy migration and transfer in TbTa3O9, EuTa3O9 and Tb0.9Eu0.1Ta3O9 powder samples., FERROELEC L, 24(5-6), 1998, pp. 105-117
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
FERROELECTRICS LETTERS SECTION
ISSN journal
07315171 → ACNP
Volume
24
Issue
5-6
Year of publication
1998
Pages
105 - 117
Database
ISI
SICI code
0731-5171(1998)24:5-6<105:EFEMAT>2.0.ZU;2-C
Abstract
In this paper the optical properties (emission and excitation spectra) of p owder samples of the double oxides of RETa3O9 (RE=Tb, Eu) were analyzed. Th e results of lifetime measurements and time resolved experiments performed at Il and 300 K are discussed. Within the range of the continuous solid sol ution Tb1-xEuxTa3O9, the optical characterization of our powder sample Tb0. 9Eu0.1Ta3O9 is presented and combined with the previous results obtained by X-ray diffraction techniques to develop a better understanding on the effe ct of the RE ions on the crystalline structure of our samples.