Low Frequency Raman Spectra of v-B2O3 as a Function of Temperature and Pressure

摘要

Raman studies of vitreous B2O3 have been conducted between 8 and 700K, and as a function of hydrostatic pressure (about 8 kbar) at room temperature. The low temperature Raman spectra exhibit two broad bands at 50/cm and 137/cm. From the temperature dependence of the 50/cm band, it has been concluded that the vibrational density of states in the low frequency region (30