Dielectric properties and tunability of (Sr,Bi)TiO3 with MgO additive

被引：15

作者：

Yu, Z ^{[1
]}

Ang, C ^{[1
]}

Guo, RY ^{[1
]}

Bhalla, AS ^{[1
]}

机构：

[1] Penn State Univ, Mat Res Lab 187, University Pk, PA 16802 USA

来源：

MATERIALS LETTERS | 2003年 / 57卷 / 19期

关键词：

(Sr; Bi)TiO3 solid solution; electric field effect; tunability;

D O I：

10.1016/S0167-577X(02)01398-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ceramics of ferroelectric relaxor (SrBi)TiO3 modified by MgO were prepared by the solid state reaction. The phase assemblage was analyzed by the X-ray diffraction (XRD). Dielectric behavior of (SrBi)TiO3 ceramics with MgO additive was studied in the temperature range from 150 to 450 K, with and without external electric field. The dc electric field (E) showed a slight influence on the dielectric properties of these ceramics. The dielectric loss (tandelta similar to 0.01) and a tunability (similar to 4-6%) were obtained for the ceramics around 300 K. The small tunability is attributed to the quantum paraelectric matrix of SrTiO3. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：2927 / 2931

页数：5

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