Optical spectroscopic study of Eu3+ crystal field sites in Na3La9O3(BO3)8 crystal.
Time-resolved line-narrowed fluorescence spectroscopy of Eu(3+) ions in a new oxyborate Na(3)La(9)O(3)(BO(3))(8) crystal shows the existence of four independent symmetry crystal field sites for the rare-earth ion. A crystal field analysis and simulation of the experimental results have been performed in order to parametrize the crystal field at the Eu(3+) sites. A plausible argument about the crystallographic nature of these sites is given.
Instituto de Ciencia de Materiales de Madrid, CSIC, Calle Sor Juana Inés de la Cruz, Cantoblanco, E-28049, Madrid, Spain.
C
C
Cascales
R
R
Balda
V
V
Jubera
J P
JP
Chaminade
J
J
Fernández