Neutron texture assessment of ferroelectric lead metaniobate

被引：6

作者：

Iverson, Benjamin J.

Jones, Jacob L.

Bowman, Keith J.

机构：

[1] Purdue Univ, W Lafayette, IN 47907 USA

[2] Univ New S Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia

来源：

PHYSICA B-CONDENSED MATTER | 2006年 / 385卷

基金：

美国国家科学基金会;

关键词：

ferroelectrics; oxide; texture;

D O I：

10.1016/j.physb.2006.05.365

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Texture in conventionally processed and oriented ferroelectric lead metaniobates has been examined using the neutron time-of-flight diffractometer HIPPO at the Los Alamos Neutron Science Center. Multiple diffraction spectra from ferroelectric ceramic structures were evaluated using the Rietveld software package materials analysis using diffraction (MAUD). The spontaneous polarization is parallel to the crystallographic b-axis, resulting in an increase in b-axis oriented peaks when the material is poled. This increase is accompanied with a decrease in a-axis oriented peaks. Samples were poled in order to examine a change in ferroelectric domain texture with applied electric field. Data is presented in the form of pole figures corresponding to the symmetries of the crystal, sample, and poling conditions. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：581 / 583

页数：3

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