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Absorption and fluorescence spectra of praseodymium in KCl and KBr matrices

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Abstract

The observed fluorescence and absorption spectra of single crystals of KCl and KBr doped with praseodymium (Pr) show that the rare earth enters substitutionally as Pr3+ in these lattices. However, the site symmetry of the ion has at most a twofold axis. This is shown by the fact that thej-degeneracy of its energy levels is completely removed. Fluorescence is observed to occur only from3P0 level to3F2, 3, 4 and3H6 levels. The overall Stark splitting shows that the Pr3+ ion experiences a stronger field in these matrices than in LaCl3 or LaBr3.

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Authors and Affiliations

  1. Spectroscopy Division, Bhabha Atomic Research Centre, Trombay, Bombay-85

    R. K. Asundi, R. C. Naik & P. Ramakoteswara Rao

Authors
  1. R. K. Asundi
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  2. R. C. Naik
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  3. P. Ramakoteswara Rao
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Asundi, R.K., Naik, R.C. & Rao, P.R. Absorption and fluorescence spectra of praseodymium in KCl and KBr matrices. Proc. Indian Acad. Sci. 73, 240–249 (1971). https://doi.org/10.1007/BF03047115

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  • DOI: https://doi.org/10.1007/BF03047115

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