A spectroscopic comparison of samarium-doped LiYF4 and KY3F10

Authors
Wells, JPR Sugiyama, A Han, TPJ Gallagher, HG
Citation
Jpr. Wells et al., A spectroscopic comparison of samarium-doped LiYF4 and KY3F10, J LUMINESC, 87-9, 2000, pp. 1029-1031
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF LUMINESCENCE
ISSN journal
00222313 → ACNP
Volume
87-9
Year of publication
2000
Pages
1029 - 1031
Database
ISI
SICI code
0022-2313(200005)87-9:<1029:ASCOSL>2.0.ZU;2-W
Abstract
Laser selective excitation and fluorescence has been performed on LiYF4 and KY3F10 doped with samarium ions. In LiYF4, a single, tetragonal symmetry c enter associated with isovalent substitution of Sm3+ with lattice yttrium i ons is present. By contrast, three Sm2+ centres and a single, tetragonal sy mmetry Sm3+ center are detected in KY3F10. This complex defect distribution is tentatively explained by the existence of charge-compensating F- vacanc ies. (C) 2000 Elsevier Science B.V. All rights reserved.