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Abstract
In this work we have studied the dynamics of the silver phosphate glass AgPO3 by Raman and Brillouin light scattering experiments. This system is of interest because it is easy to study the dynamic changes in a wide range of temperatures having a glass transition temperature at about 170°C. This allows us to study the system below and above T g and in the melt (500°C). This study seems to indicate that the low-frequency scattering has a common origin below and above T g