Abstract: Abstract In order to better understand the distribution of tetrahedra in multicomponent tetrahedral network structures of melts and glasses, we have investigated the Raman spectra of binary SiO 2 GeO 2 glasses. We compare the Raman spectral features of the end-member glasses and discuss their vibrational origins. The mixing of GeO 2 and SiO 2 melts results in a continuous random network structure of TO 4 tetrahedra (T Si, Ge) in the glass. Raman bands corresponding to the asymmetric stretch ( v as ) of oxygen in GeOGe, SiOSi and SiOGe bonds are...
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Topics: 
Crystallography