Second order Raman spectrum of rutile TiO2

摘要

AbstractData are presented on the second order Raman spectrum of rutile TiO2for various scattering geometries, at room and liquid N2temperatures. The results of a standard critical point analysis (i) allow the most important addition processes at low energies to be identified, (ii) indicate the importance of matrix element effects, and (iii) cannot account for a peak at 172 cm−1for theY(xy)Xgeometr