TEM study of the disorder-order perovskite, Pb(In1/2Nb1/2)O3

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

Research output: Contribution to journalArticle

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Abstract

A transmission electron microscopy study of the order-disorder perovskite Pb(In1/2Nb1/2)O3 (PIN) has shown that its microstructures are dependent on the In: Nb B-site cation distribution. In disordered PIN the dielectric properties are those of a relaxor ferroelectric. Lowering the temperature of disordered PIN by means of a liquid nitrogen-cooled stage has been found to stabilize polar ferroelectric micro-domains, ∼ 20 to 30 nm in size. On increasing the long range order of the B-site cations to give ordered domains > 80 nm in size, an antiferroelectric phase is shown to develop that is isostructural with the antiferroelectric perovskite, PbZrO3. Coexisting antiferroelectric and non-antiferroelectric regions have been observed in partially ordered PIN.

Original languageEnglish (US)
Pages (from-to)3678-3682
Number of pages5
JournalJournal of Materials Science
Volume23
Issue number10
DOIs
StatePublished - Oct 1 1988

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Order disorder transitions
Perovskite
Ferroelectric materials
Cations
Positive ions
Transmission electron microscopy
Liquid nitrogen
Dielectric properties
Microstructure
Temperature
perovskite

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Randall, C. A. ; Barber, D. J. ; Groves, P. ; Whatmore, R. W. / TEM study of the disorder-order perovskite, Pb(In1/2Nb1/2)O3. In: Journal of Materials Science. 1988 ; Vol. 23, No. 10. pp. 3678-3682.
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TEM study of the disorder-order perovskite, Pb(In1/2Nb1/2)O3. / Randall, C. A.; Barber, D. J.; Groves, P.; Whatmore, R. W.

In: Journal of Materials Science, Vol. 23, No. 10, 01.10.1988, p. 3678-3682.

Research output: Contribution to journalArticle

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AB - A transmission electron microscopy study of the order-disorder perovskite Pb(In1/2Nb1/2)O3 (PIN) has shown that its microstructures are dependent on the In: Nb B-site cation distribution. In disordered PIN the dielectric properties are those of a relaxor ferroelectric. Lowering the temperature of disordered PIN by means of a liquid nitrogen-cooled stage has been found to stabilize polar ferroelectric micro-domains, ∼ 20 to 30 nm in size. On increasing the long range order of the B-site cations to give ordered domains > 80 nm in size, an antiferroelectric phase is shown to develop that is isostructural with the antiferroelectric perovskite, PbZrO3. Coexisting antiferroelectric and non-antiferroelectric regions have been observed in partially ordered PIN.

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