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Correlations between structure and properties of materials. X. Anomalous optical properties and Raman spectra of glassy ternary B 2 O 3 –BaTiO 3 –Na 2 O materials
Author(s) -
Bertoluzza A.,
Marinangeli A.,
Morelli M. A.,
Simoni R.
Publication year - 1981
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560190627
Subject(s) - raman spectroscopy , ternary operation , spectral line , materials science , refractive index , analytical chemistry (journal) , oxide , spectroscopy , chemistry , optics , physics , chromatography , optoelectronics , astronomy , computer science , metallurgy , programming language , quantum mechanics
The anomalous behavior of refractive index and density in the glassy ternary B 2 O 3 –BaTiO 3 –Na 2 O materials is presented and discussed in terms of Raman spectroscopy results. The slope change in the optical properties as a function of composition takes place within the same range of composition in which the Raman spectra suggest a transition from a bridging type of attack on the glassy matrix by the oxygen present in the basic oxide, to a nonbridging type. The structural modifications of the materials at different compositions are inferred from a detailed analysis of the Raman spectra.