Flexoelectric polarization of barium strontium titanate in the paraelectric state

被引：414

作者：

Ma, WH ^{[1
]}

Cross, LE ^{[1
]}

机构：

[1] Penn State Univ, Mat Res Lab, University Pk, PA 16802 USA

来源：

APPLIED PHYSICS LETTERS | 2002年 / 81卷 / 18期

关键词：

D O I：

10.1063/1.1518559

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The strain-gradient-induced polarization (flexoelectric effect) was investigated in Ba0.67Sr0.33TiO3 (BST) ceramic at temperatures above the 21degreesC Curie point. At 23degreesC the flexoelectric coefficient mu(12) was more than one order of magnitude greater than the highest value measured in lead magnesium niobate ceramic. Over the temperature range of linear Curie-Weiss behavior, the coefficient mu(12) was roughly proportional to the dielectric permittivity; however, the constant of proportionality was higher than predicted for simple ionic solids. The unexpected behavior in the BST ceramic suggests the need for a broader database of flexoelectric coefficients. (C) 2002 American Institute of Physics.

引用

页码：3440 / 3442

页数：3

共 13 条

[1]

CROSS LE, 1987, FERROELECTRICS, V76, P241, DOI 10.2109/jcersj.99.829

[2]

Indenbom V. L., 1981, Soviet Physics - Crystallography, V26, P656

[3]

Jona F., 1962, FERROELECTRIC CRYSTA

[4]

KOGAN SM, 1964, SOV PHYS-SOL STATE, V5, P2069

[5] Large flexoelectric polarization in ceramic lead magnesium niobate [J].

Ma, W ;

Cross, LE .

APPLIED PHYSICS LETTERS, 2001, 79 (26) :4420-4422

[6] Observation of the flexoelectric effect in relaxor Pb(Mg1/3Nb2/3)O3 ceramics [J].

Ma, WH ;

Cross, LE .

APPLIED PHYSICS LETTERS, 2001, 78 (19) :2920-2921

[7]

Marvan M., 1988, PROGR COLLOID POLYM, V78, P33

[8]

MASHKEVICH VS, 1957, SOV PHYS JETP-USSR, V5, P435

[9] Dielectric, infrared, and Raman response of undoped SrTiO3 ceramics:: Evidence of polar grain boundaries -: art. no. 184111 [J].

Petzelt, J ;

Ostapchuk, T ;

Gregora, I ;

Rychetsky, I ;

Hoffmann-Eifert, S ;

Pronin, AV ;

Yuzyuk, Y ;

Gorshunov, BP ;

Kamba, S ;

Bovtun, V ;

Pokorny, J ;

Savinov, M ;

Porokhonskyy, V ;

Rafaja, D ;

Vanek, P ;

Almeida, A ;

Chaves, MR ;

Volkov, AA ;

Dressel, M ;

Waser, R .

PHYSICAL REVIEW B, 2001, 64 (18)

[10] THE THEORY OF FLEXOELECTRIC EFFECT OF POLYMER GLASSES [J].

SCHULZ, M ;

MARVAN, M .

COLLOID AND POLYMER SCIENCE, 1991, 269 (06) :553-555

← 1 2 →