Phase stability and pyroelectricity of antiferroelectric PLZST oxide

Wai Hung Chan; Zhengkui Xu; Jiwei Zhai; Eugene V. Colla; Haydn Chen

doi:10.1007/s10832-007-9116-4

Phase stability and pyroelectricity of antiferroelectric PLZST oxide

Wai Hung Chan, Zhengkui Xu, Jiwei Zhai, Eugene V. Colla, Haydn Chen

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Polarization and transmission electron microscopy studies of the Pb _0.97La_0.02(Zr_0.65Sn_0.22Ti _0.13)O₃ (PLZST) ceramics confirmed the antiferroelectric (AFE) nature of this material. The electric-field-induced ferroelectric (FE) phase has a lifetime much longer than the reasonable laboratory time scale at T∈≤∈60°C. The observed frequency dispersion of the dielectric constant reflects the competition between AFE and FE orderings. At high temperatures, the induced-FE phase reverses fast to the AFE phase. This process produces a pronounced pyroelectric current. The FE-to-AFE transition temperature can also be tuned by a dc bias field.

Original language	English (US)
Pages (from-to)	145-148
Number of pages	4
Journal	Journal of Electroceramics
Volume	21
Issue number	1-4 SPEC. ISS.
DOIs	https://doi.org/10.1007/s10832-007-9116-4
State	Published - Dec 1 2008

Keywords

Antiferroelectric
Frequency dispersion
PLZST ceramics
Pyroelectric properties
Tunability

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Mechanics of Materials
Electrical and Electronic Engineering
Materials Chemistry

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title = "Phase stability and pyroelectricity of antiferroelectric PLZST oxide",

abstract = "Polarization and transmission electron microscopy studies of the Pb 0.97La0.02(Zr0.65Sn0.22Ti 0.13)O3 (PLZST) ceramics confirmed the antiferroelectric (AFE) nature of this material. The electric-field-induced ferroelectric (FE) phase has a lifetime much longer than the reasonable laboratory time scale at T∈≤∈60°C. The observed frequency dispersion of the dielectric constant reflects the competition between AFE and FE orderings. At high temperatures, the induced-FE phase reverses fast to the AFE phase. This process produces a pronounced pyroelectric current. The FE-to-AFE transition temperature can also be tuned by a dc bias field.",

keywords = "Antiferroelectric, Frequency dispersion, PLZST ceramics, Pyroelectric properties, Tunability",

author = "Chan, {Wai Hung} and Zhengkui Xu and Jiwei Zhai and Colla, {Eugene V.} and Haydn Chen",

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AU - Chan, Wai Hung

AU - Xu, Zhengkui

AU - Zhai, Jiwei

AU - Colla, Eugene V.

AU - Chen, Haydn

PY - 2008/12/1

Y1 - 2008/12/1

N2 - Polarization and transmission electron microscopy studies of the Pb 0.97La0.02(Zr0.65Sn0.22Ti 0.13)O3 (PLZST) ceramics confirmed the antiferroelectric (AFE) nature of this material. The electric-field-induced ferroelectric (FE) phase has a lifetime much longer than the reasonable laboratory time scale at T∈≤∈60°C. The observed frequency dispersion of the dielectric constant reflects the competition between AFE and FE orderings. At high temperatures, the induced-FE phase reverses fast to the AFE phase. This process produces a pronounced pyroelectric current. The FE-to-AFE transition temperature can also be tuned by a dc bias field.

AB - Polarization and transmission electron microscopy studies of the Pb 0.97La0.02(Zr0.65Sn0.22Ti 0.13)O3 (PLZST) ceramics confirmed the antiferroelectric (AFE) nature of this material. The electric-field-induced ferroelectric (FE) phase has a lifetime much longer than the reasonable laboratory time scale at T∈≤∈60°C. The observed frequency dispersion of the dielectric constant reflects the competition between AFE and FE orderings. At high temperatures, the induced-FE phase reverses fast to the AFE phase. This process produces a pronounced pyroelectric current. The FE-to-AFE transition temperature can also be tuned by a dc bias field.

KW - Antiferroelectric

KW - Frequency dispersion

KW - PLZST ceramics

KW - Pyroelectric properties

KW - Tunability

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