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A neutron powder diffraction study has been carried out on Pb(Zr0.52Ti0.48)O3in order to resolve an ongoing controversy about the nature of thelow-temperature structure of this strongly-piezoelectric andtechnologically-important material. The results of a detailed and systematicRietveld analysis at 20 K are consistent with the coexistence of two monoclinicphases having space groups Cm and Ic respectively, in the approximate ratio4:1, and thus support the findings of a recent electron diffraction study byNoheda et al. [Phys. Rev. B 66, 060103 (2002)]. The results are compared tothose of two recent conflicting neutron powder diffraction studies of materialsof the same nominal composition by Hatch et al. [Phys. Rev. B 65, 212101(2002)] and Frantti et al. [Phys. Rev. B 66, 064108 (2002)].Comment: RevTex4, 16 pages, 6 color figure

physical review. b, condensed matter and materials physics

Low-temperature phases in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi mathvariant="normal">Pb</mml:mi><mml:msub><mml:mi mathvariant="normal">Zr</mml:mi><mml:mn>0.52</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">Ti</mml:mi><mml:mn>0.48</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>: A neutron powder diffraction study

Low-temperature phases inPbZr0.52Ti0.48O3: A neutron powder diffraction study