Structure refinement, dielectric and ferroelectric properties of crystalline (BaxSr1-x)Bi2Ta2O9

被引：0

作者：

Shi, Jen-Bin ^{[1
]}

Shi, Hsin-Chien

Yang, Shui-Yuang

Lin, Ya-Ting

Lee, Chia-Wei

Wu, Chien

Lin, Chen-Cheng

Young, San-Lin

Lin, Jer-Yan

机构：

[1] Feng Chia Univ, Dept Elect Engn, Taichung 407, Taiwan

[2] Feng Chia Univ, Grad Inst Elect & Commun Engn, Taichung 407, Taiwan

[3] Hsiuping Inst Technol, Dept Elect Engn, Taichung 412, Taiwan

[4] Feng Chia Univ, Dept Stat, Taichung 407, Taiwan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2007年 / 46卷 / 3A期

关键词：

crystal structure; dielectric materials; ferroelectric materials;

D O I：

10.1143/JJAP.46.1085

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We synthesized a series of (Ca,Ba)-layered compounds (Ba-x,Sr1-x)Bi2Ta2O9 (x = 0.0, 0.2, 0.4, 0.6, 0.8, and 1.0) by a solid-state reaction, and examined the structures, and the dielectric and ferroelectric properties. Structural analysis by X-ray diffraction (XRD) revealed that the structures of (BaxSr1-x)Bi2Ta2O9 for 0.0 <= x <= 0.4 are orthorhombic with A2(1)am symmetry, whereas those of (BaxSr1-x)Bi2Ta2O9 for 0.6 <= x <= 1.0 are tetragonal (I4/mmm). The temperature dependence of epsilon(r)' and tan delta were investigated in detail for various frequencies and compositions. We observed that the dielectric constant epsilon(r)' tan delta, T-c, and hysteresis loop were strongly influenced by from Sr2+ to Ba2+.

引用

页码：1085 / 1089

页数：5

共 15 条

[1] Electrical properties of SrBi2Ta2O9 single crystals grown by self-flux solution [J].