The aim of our previous work [J. Appl. Phys. 83, 5065 (1998)] was to demonstrate by means of extended x-ray absorption fine structure (EXAFS) spectroscopy that, whatever the Pr precursor, (PrF3 , PrCl3 , Pr6O11 or Pr2S3) and whatever the dopant concentration (from 500 to 10 000 ppmw, the first shell around Pr in Pr-doped fluorozirconate glasses remains very similar to that in PrF3 . In this addendum we report the results of a new EXAFS analysis, based on the structure of PrF3 (as determined by Cheetham et al.)of the old data ZYSAN glasses and also new experimental EXAFS data (and corresponding analysis) on a different Pr-doped glass matrix (ZBLAN glasses: 53ZrF4, 20BaF2, 4LaF3, 3AlF3, 20NaF, mol%).
ADDENDUM: Pr K-edge x-ray absorption fine structure analysis of the local structure of Pr in fluorozirconate glasses
LAMBERTI, Carlo
1999-01-01
Abstract
The aim of our previous work [J. Appl. Phys. 83, 5065 (1998)] was to demonstrate by means of extended x-ray absorption fine structure (EXAFS) spectroscopy that, whatever the Pr precursor, (PrF3 , PrCl3 , Pr6O11 or Pr2S3) and whatever the dopant concentration (from 500 to 10 000 ppmw, the first shell around Pr in Pr-doped fluorozirconate glasses remains very similar to that in PrF3 . In this addendum we report the results of a new EXAFS analysis, based on the structure of PrF3 (as determined by Cheetham et al.)of the old data ZYSAN glasses and also new experimental EXAFS data (and corresponding analysis) on a different Pr-doped glass matrix (ZBLAN glasses: 53ZrF4, 20BaF2, 4LaF3, 3AlF3, 20NaF, mol%).
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