Abstract
In low-frequency region of Raman spectrum, glassy materials show an asymmetric broad band, so-called Boson peak. Although it has been suggested that position of the Boson peak is related to elastic property, there are few reports about the relation in actual glassy materials. In addition, Boson peak in binary Li2O-SiO2 system glass has not been examined so far. Therefore, in this study, we have prepared several glasses in the Li2O-SiO2 system, and investigated their Boson peak behavior. Relationship between the peak position and elastic property was also considered in binary M2O-SiO2 (M = Li, Na, K) system glasses.
