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The polarized luminescence spectrum of europium double nitrate

✍ Scribed by C. Görller-Walrand; I. Hendrickx; L. Fluyt; J.-C.G. Bünzli; E. Moret

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
523 KB
Volume
170
Category
Article
ISSN
0009-2614

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✦ Synopsis

The polarized luminescence spectrum of single crystals of Zn3Eu2(N0,)12.24Hz0, measured at 77 K under laser-selective excitation, is presented. The spectra are interpreted by using Cp, symmetry, and are afterwards related to the crystallographic determined C, model at the site of the hexanitrate. The crystal-field lines are not fully polarized and a comparison with the 'Dl+'Fa absorption spectrum recorded at various temperatures indicates that the effect may be linked to the cooling of the crystal. Data on polycrystalline Mg,E~~(N03)1~.24H~O are also presented. The small differences in the crystal-field transitions between the Mg and Zn compounds are discussed.

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