Vibronic transitions in the absorption spectrum of a U3+-doped elpasolite single crystal |
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Authors: | P. J. Deren W. Stręk J. Drożdżyński |
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Affiliation: | (1) Institute of Low Temperatures and Structure Research, Polish Academy of Sciences, P. O. Box 937, 50-950 Wroclaw, Poland;(2) Institute of Chemistry, University of Wroclaw, ul. Joliot-Curie 14, 50-383 Wroclaw, Poland |
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Abstract: | Conclusions We have presented the absorption bands associated with f−f and f−d transitions. The investigated ion was placed in the center of symmetry. For that reason pure electric dipole f−f transitions are forbidden, but thet are allowed for f−d transitions. Nevertheless, pronounced vibronic transitions were obseved not only in the f−f lines but also for f−d bands. An assignment of the observed lines supported by previously reported Raman and IR spectra is proposed. Published in Zhurnal Prikladnoi Spektroskopii, Vol. 62, No. 4, pp. 58–62, July–August, 1995. |
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