Figure 7
The Te PDOS of TeO2 measured at the indicated pressures and temperatures. The blue curves show the calculated Te PDOS of orthorhombic TeO2 at the corresponding pressures. The red vertical lines denote the positions of the Raman peaks measured on the same sample at room temperature and the corresponding pressures. The inset shows the reduced PDOS (PDOS/E2), with the points at zero energy denoting the extrapolated Debye levels. The magenta star shows the Debye level calculated using the mean sound velocity obtained by Ogi et al. (2004). |