The not so simple cubic structure of PbZr(1-x)Ti(x)O3 (PZT): complex local structural effects in perovskites.
Acta Crystallogr B 67:Pt 6 (2011) 461-466
Abstract:
High-resolution neutron diffraction on the important piezoelectric lead zirconate titanate (PZT) has found that oxygen disorder exists well into the cubic phase. This unexpected result shows that within this phase there persists a remnant of the tilted oxygen octahedra present within the room-temperature ferroelectric phase. The result is that the cubic phase, far from having a simple crystal structure, exhibits a more complex local structure than had hitherto been thought.Neutron powder diffraction refinement of PbZr(1 - x)Ti(x)O3.
Acta Crystallogr B 67:Pt 5 (2011) 386-398
Abstract:
Rietveld refinement of different structural models using neutron diffraction data for a series of powders of lead zirconate titanate, PbZr(1 - x)Ti(x)O(3) (PZT), is described. It is found that at all the compositions and temperatures studied the best results include contributions from more than one phase in order to fit the data. Consequently a new phase diagram is proposed.Crystal structure determinations of Zr Rich-PbZr1-x Ti x O3
Ferroelectrics 414:1 (2011) 147-154
Abstract:
TOF experiments were carried out at room temperature and high temperature for Zr rich PbZr1-xTixO3 powders. The best R-factors were obtained with a mixture of R3c and Cm phases. The composition of the Cm phase monotonically increases towards the MPB. At high temperature in the cubic phase, the ADPs for the Pb atom become smaller when Pb displacements along either >110Structural investigation of LN/LT1 superlattice thin films by field effect scanning transmission electron microscopy equipped with electron disspersive x-ray spectroscopy
Institute of Electrical and Electronics Engineers (IEEE) (2011) 1-4
A brief history of tilts
PHASE TRANSITIONS 84:5-6 (2011) PII 937292950