Zobrazeno 1 - 10
of 65
pro vyhledávání: '"M.D. Faucher"'
Publikováno v:
The Journal of Physical Chemistry A. 108:8244-8255
Y4Al2O9:Pr3+ was prepared by two methods: starting from the citrates and direct sintering of the oxides. The latter method gave more single-phased samples. Optical spectroscopy was utilized to obtain the emission spectra from the individual sites of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f07ea6cef4e9e044bd02ff75171b02c
https://doi.org/10.1021/jp048123j
https://doi.org/10.1021/jp048123j
Publikováno v:
Optical Materials. 24:345-351
Two synthesis techniques to produce transparent Nd:YAG ceramics were investigated. The most transparent were obtained by the sintering of commercial oxides. The spectroscopic analysis reveals very similar properties to that of single crystals. In a l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::822176babb1b7e699ae776edfc9e4380
https://doi.org/10.1016/s0925-3467(03)00148-4
https://doi.org/10.1016/s0925-3467(03)00148-4
Autor:
M.D. Faucher, Peter A. Tanner
Publikováno v:
Molecular Physics. 101:983-992
The discrepancies of the crystal-field analysis in Cs2NaErCl6 are lowered by letting the 4f11 configuration interact with a charge transfer configuration enclosing a p electron. 75 levels with a total degeneracy equal to 130 were fitted with a mean d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::320bd80a9934d7c4b15b04221a249a06
https://doi.org/10.1080/0026897021000046834
https://doi.org/10.1080/0026897021000046834
Publikováno v:
The European Physical Journal D - Atomic, Molecular and Optical Physics. 19:275-291
This paper presents an investigation of Pr3+ doped in the D2 site of Y3Al5O12 (YAG), for the first time on a translucent ceramic sample free of spurious phases, impurity or pair sites. The optical study is carried out by optical absorption, excitatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4459bf06219668970476dc3db5453c3
https://doi.org/10.1140/epjd/e20020096
https://doi.org/10.1140/epjd/e20020096
Publikováno v:
Journal of Luminescence. 96:37-49
A spectroscopic study is carried out in which the effects of added Ca 2+ and Ru 4+ transition metal ions on some characteristics of the emission of Gd 2 O 2 S : Tb 3+ phosphors (energy levels, intensities, lifetimes) are examined and compared. In ord
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5651f285a2709b3482cebf09a240b0c
https://doi.org/10.1016/s0022-2313(01)00212-5
https://doi.org/10.1016/s0022-2313(01)00212-5
Publikováno v:
Journal of Luminescence. 96:51-68
An optical study of a Y 0.99 Pr 0.01 PO 4 single crystal is presented. Measurements of optical absorption, excitation, and emission by selective excitation into 1 D 2 , 3 P 0 and 3 P 1 , at different temperatures between 20 and 295 K, are described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eec0dfd82c27319d557ff99c45d0c87c
https://doi.org/10.1016/s0022-2313(01)00211-3
https://doi.org/10.1016/s0022-2313(01)00211-3
Publikováno v:
Chemical Physics Letters. 343:309-314
The first well-resolved, high-resolution d–f emission spectra are reported for a lanthanide ion. Numerous transitions are observed and assigned for Pr 3+ at a crystal site of octahedral symmetry. The symmetry representation of the lowest f 1 d 1 st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2d076ba60c2ce3eb8ef4f5223e006fa
https://doi.org/10.1016/s0009-2614(01)00712-6
https://doi.org/10.1016/s0009-2614(01)00712-6
Publikováno v:
Journal of Alloys and Compounds. :783-787
An optical investigation of Pr3+ (1 at.%) in YPO4 single crystal is reported. The aim is an improvement of the crystal field analysis by the means of direct configuration interaction between the ground 4f2 configuration and the nearest excited config
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba523a3db8d0275a1b9eb2a348dbf122
https://doi.org/10.1016/s0925-8388(01)01093-3
https://doi.org/10.1016/s0925-8388(01)01093-3
Publikováno v:
Journal of Alloys and Compounds. :636-639
There are two established methods for extending the crystal-field model for 4f N configurations. One is to add two-electron correlation crystal-field operators, the other is to extend the basis set to include more configurations. We consider the case
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8aa0a8bd1b44dddb3f543748c258c1db
https://doi.org/10.1016/s0925-8388(01)01183-5
https://doi.org/10.1016/s0925-8388(01)01183-5
Autor:
John E. Greedan, Bruce D. Gaulin, S. R. Dunsiger, M.D. Faucher, B. C. den Hertog, J. S. Gardner, N. P. Raju, Liang-Juan Chang, Michel J. P. Gingras
Publikováno v:
Physical Review B. 62:6496-6511
In a recent paper [J. S. Gardner et al., Phys. Rev. Lett. 82, 1012 (1999)] it was found that the ${\mathrm{Tb}}^{3+}$ magnetic moments in the ${\mathrm{Tb}}_{2}{\mathrm{Ti}}_{2}{\mathrm{O}}_{7}$ antiferromagnetic pyrochlore lattice of corner-sharing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::872a7806876cee576c9ebc54258a47f7
https://doi.org/10.1103/physrevb.62.6496
https://doi.org/10.1103/physrevb.62.6496