Raman study of morphotropic phase boundary in PbZr1-xTixO3 at low temperatures -: art. no. 184105

The Raman spectra of PbZr1-xTixO3 ceramics with titanium concentration varying between x = 0.40 and 0.60 were measured at 7 K. By observing the concentration-frequency dependence of the vibrational modes: we identified the boundaries,among the rhombohedral, monoclinic, and tetragonal ferroelectric phases. The analysis of the spectra was made in the view of group theory analysis making possible the assignment of some modes for the monoclinic phase.