Abstract
The discovery of a new monoclinic phase inthe PbZr1-xTixO3 (PZT) system in the vicinityof the morphotropic phase boundary (MPB), previously consideredas a region where the rhombohedral and tetragonal phases of PZT coexist, was recently reported. Investigations of this new phase were reportedusing different techniques such as high-resolutionsynchrotron x-ray powder diffraction and Raman spectroscopy. The main objective has been to define a new phase diagramof PZT. In this context, infrared spectroscopic studieswere performed in the vicinity of the MPB and studies wereinitially centred on a PZT sample with x = 0.49 mol% Ticontent. Results suggested that the monoclinic → tetragonal phase transition occurs at 237 K, confirmingthe use of IR as a useful technique to investigate this phasetransition.
Published Version
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