Journal
PHYSICAL REVIEW B
Volume 71, Issue 13, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.71.134110
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A neutron powder diffraction study has been carried out on PbZr0.52Ti0.48O3 in order to resolve an ongoing controversy about the nature of the low-temperature structure of this strongly piezoelectric and technologically important material. The results of a detailed and systematic Rietveld analysis at 20 K are consistent with the coexistence of two monoclinic phases having space groups Cm and Ic, respectively, in the approximate ratio 4:1, and thus support the findings of a recent electron diffraction study by Noheda [Phys. Rev. B 66, 060103 (2002)]. The results are compared to those of two recent conflicting neutron powder diffraction studies of materials of the same nominal composition by Hatch [Phys. Rev. B 65, 212101 (2002)] and Frantti [Phys. Rev. B 66, 064108 (2002)].
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