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A monoclinic ferroelectric phase in the Pb(Zr1−xTix)O3 solid solution (1999)

Noheda, B. ; Cox, D. E. ; Shirane, G.

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 74 (1999), S. 2059-2061

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: A previously unreported ferroelectric phase has been discovered in a highly homogeneous sample of PbZr0.52Ti0.48O3 by high-resolution synchrotron x-ray powder diffraction measurements. At ambient temperature the sample has tetragonal symmetry (at=4.037 Å, ct=4.138 Å), and transforms below ∼250 K into a phase which, unexpectedly, has monoclinic symmetry (am=5.717 Å, bm=5.703 Å, cm=4.143 Å, β=90.53°, at 20 K). The intensity data strongly indicate that the polar axis lies in the monoclinic ac plane close to the pseudocubic [111] direction, which would be an example of the species m3m(12)A2Fm predicted on symmetry grounds by Shuvalov. © 1999 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.123756

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