Structural distortion and phase transition studies of Aurivillius type Sr1-xPbxBi2Nb2O9 ferrolectric ceramics

被引：39

作者：

Shrivastava, V

Jha, AK ^{[1
]}

Mendiratta, RG

机构：

[1] Delhi Coll Engn, Dept Appl Phys, Delhi 110042, India

[2] Netaji Subhas Inst Technol, Sch Appl Sci, Delhi 110075, India

来源：

SOLID STATE COMMUNICATIONS | 2005年 / 133卷 / 02期

关键词：

ferroelectrics; lattice distortion; phase transition;

D O I：

10.1016/j.ssc.2004.10.006

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this paper, effects of lead doping on the lattice response and phase transitions of Sr1-xPbxBi2Nb2O9(x=0.0-0.-5 in Steps of 0.1) ferroelectric ceramics are reported. It is observed that structure attains more tetragonality with doping of lead up to 40%. Increased orthorhombic distortion is observed for undoped SBN and 50 at.% lead substituted SBN-. Phase transitions for all samples were studied using Curie temperature measurements and are explained in terms of lattice response of these ceramics. Sample with x= 0.5 shows decreased tetragonal strain and Curie temperature. Relationship of polarization with lattice response is discussed. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：125 / 129

页数：5

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