Abstract
The polarized Raman spectra of Lu 2SiO 5 (LSO) and Gd 2SiO 5 (GSO) have been measured. The symmetries of the vibrational modes in the LSO and GSO Raman spectra were determined with using the group-theory calculations. Evaporation of SiO 2 from the LSO crystal at annealing above 2100 K and from the LSO melt was determined with High Temperature Raman Spectroscopy technique. It was found, that invert glasses with the LSO and GSO compositions could be synthesized by quick quenching their melts. The structure of these glasses was studied by means of the Raman spectroscopy data.
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