A TEM study of ordering in the perovskite, Pb(Sc1/2Ta1/2)O3

C. A. Randall; D. J. Barber; R. W. Whatmore; P. Groves

doi:10.1007/BF01106571

A TEM study of ordering in the perovskite, Pb(Sc_1/2Ta_1/2)O₃

C. A. Randall, D. J. Barber, R. W. Whatmore, P. Groves

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Abstract

Ordering behaviour and the factors which influence the ordering have been studied in both single crystals and hot-pressed ceramics of Pb(Sc_1/2Ta_1/2)O₃ using TEM techniques, including low-temperature microscopy. The characteristics of the structurally-ordered domains are described and also the observation by electron diffraction of new superlattice reflections and diffuse scattering in both the paraelectric and ferroelectric phases. The superlattice reflections are interpreted in terms of Pb²⁺ cation displacements. The non-interaction of ordered domains and ferroelectric domains is explained within this model.

Original language	English (US)
Pages (from-to)	4456-4462
Number of pages	7
Journal	Journal of Materials Science
Volume	21
Issue number	12
DOIs	https://doi.org/10.1007/BF01106571
State	Published - Dec 1 1986

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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abstract = "Ordering behaviour and the factors which influence the ordering have been studied in both single crystals and hot-pressed ceramics of Pb(Sc1/2Ta1/2)O3 using TEM techniques, including low-temperature microscopy. The characteristics of the structurally-ordered domains are described and also the observation by electron diffraction of new superlattice reflections and diffuse scattering in both the paraelectric and ferroelectric phases. The superlattice reflections are interpreted in terms of Pb2+ cation displacements. The non-interaction of ordered domains and ferroelectric domains is explained within this model.",

author = "Randall, {C. A.} and Barber, {D. J.} and Whatmore, {R. W.} and P. Groves",

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AU - Randall, C. A.

AU - Barber, D. J.

AU - Whatmore, R. W.

AU - Groves, P.

PY - 1986/12/1

Y1 - 1986/12/1

N2 - Ordering behaviour and the factors which influence the ordering have been studied in both single crystals and hot-pressed ceramics of Pb(Sc1/2Ta1/2)O3 using TEM techniques, including low-temperature microscopy. The characteristics of the structurally-ordered domains are described and also the observation by electron diffraction of new superlattice reflections and diffuse scattering in both the paraelectric and ferroelectric phases. The superlattice reflections are interpreted in terms of Pb2+ cation displacements. The non-interaction of ordered domains and ferroelectric domains is explained within this model.

AB - Ordering behaviour and the factors which influence the ordering have been studied in both single crystals and hot-pressed ceramics of Pb(Sc1/2Ta1/2)O3 using TEM techniques, including low-temperature microscopy. The characteristics of the structurally-ordered domains are described and also the observation by electron diffraction of new superlattice reflections and diffuse scattering in both the paraelectric and ferroelectric phases. The superlattice reflections are interpreted in terms of Pb2+ cation displacements. The non-interaction of ordered domains and ferroelectric domains is explained within this model.

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A TEM study of ordering in the perovskite, Pb(Sc_1/2Ta_1/2)O₃

Abstract

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