Structural study of Na2O FeO Fe2O3 P2O5 glasses by Raman and Mossbauer spectroscopy
Abstract Five series of Na 2 O FeO Fe 2 O 3 P 2 O 5 glasses with compositional ranges of 3.0 Fe of the Fe ions decreased, as indicated by the Mossbauer data. The interaction between phosphate anions and iron polyhedra causes systematic changes in the Raman frequencies as well as peak intensities.