Fluorescence Spectrum and the Energy Levels of the Sm2+ Ion
- 15 January 1962
- journal article
- conference paper
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 36 (2) , 371-377
- https://doi.org/10.1063/1.1732512
Abstract
Sm2+ which occurs as impurity in very small concentrations in LaCl3 has a very distinctive fluorescence spectrum which resembles in all details that of Eu3+. Excitation is through the very strong continuous absorption to 4f55d in the visible. The energy is transferred to the stable states 5D0 and 5D1 of the 4f6 configuration separated by 1330 cm—1 from which emission to the components of the ground multiplet 7F is observed. The fact that in all cases the spatial degeneracy is completely removed shows that the field around the Sm2+ ion has low symmetry even though the La3+ ion which it replaces is in an hexagonal field.Keywords
This publication has 4 references indexed in Scilit:
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- Monochromatically Excited Fluorescence in Rare Earth SaltsThe Journal of Chemical Physics, 1959
- Energy levels in rare-earth ionsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1957
- Absorption and fluorescence spectra of bivalent samarium, europium and ytterbiumTransactions of the Faraday Society, 1948