Unusually soft ferroelectricity in (Ba 1-xSr x)TiO 3 ceramics

Le Wang; Xiaoli Wang; Jing Shi; Ruiting Sun; Bo Li

doi:10.1002/pssa.201127086

Unusually soft ferroelectricity in (Ba _1-xSr _x)TiO ₃ ceramics

Le Wang
, Xiaoli Wang
, Jing Shi
, Ruiting Sun
, Bo Li

School of Materials Science and Engineering

Xi'an Jiaotong University

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

1 Scopus citations

Abstract

Temperature evolution of polarization versus electric field of (Ba _0.4Sr _0.6)TiO ₃ and (Ba _0.9Sr _0.1)TiO ₃ ceramics was investigated. Polarization characteristics of (Ba _0.9Sr _0.1)TiO ₃ belong to ferroelectrics with diffuse phase transition (DPT), while the ones of (Ba _0.4Sr _0.6)TiO ₃ are rather different. (Ba _0.4Sr _0.6)TiO ₃ ceramics display very soft ferroelectricity and extremely high dielectric tunability. The long-range ferroelectric ordering in (Ba _0.4Sr _0.6)TiO ₃ ceramics disappears completely below temperature T _m of maximum dielectric permittivity ε _m, which is different from normal DPT ferroelectrics. The special ferroelectric behavior is hypothesized to be attributed to random arrangements of the distorted TiO ₆ octahedra.

Original language	English
Pages (from-to)	1960-1963
Number of pages	4
Journal	Physica Status Solidi (A) Applications and Materials Science
Volume	208
Issue number	8
DOIs	https://doi.org/10.1002/pssa.201127086
State	Published - Aug 2011

Keywords

ceramics
ferroelectricity
phase transitions
polarization

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10.1002/pssa.201127086

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title = "Unusually soft ferroelectricity in (Ba 1-xSr x)TiO 3 ceramics",

abstract = "Temperature evolution of polarization versus electric field of (Ba 0.4Sr 0.6)TiO 3 and (Ba 0.9Sr 0.1)TiO 3 ceramics was investigated. Polarization characteristics of (Ba 0.9Sr 0.1)TiO 3 belong to ferroelectrics with diffuse phase transition (DPT), while the ones of (Ba 0.4Sr 0.6)TiO 3 are rather different. (Ba 0.4Sr 0.6)TiO 3 ceramics display very soft ferroelectricity and extremely high dielectric tunability. The long-range ferroelectric ordering in (Ba 0.4Sr 0.6)TiO 3 ceramics disappears completely below temperature T m of maximum dielectric permittivity ε m, which is different from normal DPT ferroelectrics. The special ferroelectric behavior is hypothesized to be attributed to random arrangements of the distorted TiO 6 octahedra.",

keywords = "ceramics, ferroelectricity, phase transitions, polarization",

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T1 - Unusually soft ferroelectricity in (Ba 1-xSr x)TiO 3 ceramics

AU - Wang, Le

AU - Wang, Xiaoli

AU - Shi, Jing

AU - Sun, Ruiting

AU - Li, Bo

PY - 2011/8

Y1 - 2011/8

N2 - Temperature evolution of polarization versus electric field of (Ba 0.4Sr 0.6)TiO 3 and (Ba 0.9Sr 0.1)TiO 3 ceramics was investigated. Polarization characteristics of (Ba 0.9Sr 0.1)TiO 3 belong to ferroelectrics with diffuse phase transition (DPT), while the ones of (Ba 0.4Sr 0.6)TiO 3 are rather different. (Ba 0.4Sr 0.6)TiO 3 ceramics display very soft ferroelectricity and extremely high dielectric tunability. The long-range ferroelectric ordering in (Ba 0.4Sr 0.6)TiO 3 ceramics disappears completely below temperature T m of maximum dielectric permittivity ε m, which is different from normal DPT ferroelectrics. The special ferroelectric behavior is hypothesized to be attributed to random arrangements of the distorted TiO 6 octahedra.

AB - Temperature evolution of polarization versus electric field of (Ba 0.4Sr 0.6)TiO 3 and (Ba 0.9Sr 0.1)TiO 3 ceramics was investigated. Polarization characteristics of (Ba 0.9Sr 0.1)TiO 3 belong to ferroelectrics with diffuse phase transition (DPT), while the ones of (Ba 0.4Sr 0.6)TiO 3 are rather different. (Ba 0.4Sr 0.6)TiO 3 ceramics display very soft ferroelectricity and extremely high dielectric tunability. The long-range ferroelectric ordering in (Ba 0.4Sr 0.6)TiO 3 ceramics disappears completely below temperature T m of maximum dielectric permittivity ε m, which is different from normal DPT ferroelectrics. The special ferroelectric behavior is hypothesized to be attributed to random arrangements of the distorted TiO 6 octahedra.

KW - ceramics

KW - ferroelectricity

KW - phase transitions

KW - polarization

UR - https://www.scopus.com/pages/publications/80051701547

U2 - 10.1002/pssa.201127086

DO - 10.1002/pssa.201127086

M3 - 文章

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SN - 1862-6300

VL - 208

SP - 1960

EP - 1963

JO - Physica Status Solidi (A) Applications and Materials Science

JF - Physica Status Solidi (A) Applications and Materials Science

IS - 8

ER -

Unusually soft ferroelectricity in (Ba _1-xSr _x)TiO ₃ ceramics

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