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Raman and infrared structural investigation of (PbO) x (ZnO) (0.6− x ) (P 2 O 5 ) 0.4 glasses
Author(s) -
Le Saoût Gwenn,
Simon Patrick,
Fayon Franck,
Blin Annie,
Vaills Yann
Publication year - 2009
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.2158
Subject(s) - raman spectroscopy , wavenumber , infrared , analytical chemistry (journal) , ternary operation , raman scattering , materials science , infrared spectroscopy , dielectric , chemistry , crystallography , optics , physics , optoelectronics , organic chemistry , chromatography , computer science , programming language
The structure of ternary (PbO) x (ZnO) (0.6− x ) (P 2 O 5 ) 0.4 glasses was investigated using Raman scattering and infrared spectroscopy over the compositional range x = 0–0.6. No significant change of the average chain length composed by PO 4 tetrahedral units with the substitution of zinc for the lead cation was observed. The linewidth and wavenumber variations of the Raman high‐wavenumber bands reflect the Zn/Pb substitution in these glasses and are correlated with the metal–oxygen force constant and local disorder. The infrared reflectivity spectra have been fitted with the four‐parameter dielectric function model. The variation in the 1000–1200 cm −1 wavenumber range has been attributed to an increase of the oscillator damping Γ LO (PO 3 ) 2− as with PbO content vibrations rather than a variation of the chain length. Copyright © 2008 John Wiley & Sons, Ltd.