Substituent-introduction of "hard" polarization characteristics in "soft" Pb(BIBII)O3-PbTiO3 ferroelectric ceramics

被引：19

作者：

Chen, YH ^{[1
]}

Uchino, K

Viehland, D

机构：

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

[2] USN, SeaSyst Command, Newport, RI 02835 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2001年 / 89卷 / 07期

关键词：

D O I：

10.1063/1.1351864

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The polarization versus field (P-E) characteristics of modified Pb(Mg1/3Nb2/3)O-3-PbTiO3 (PMN-PT) and Pb(Sc1/2Nb1/2)O-3-PbTiO3 (PSN-PT) ceramics has been investigated for compositions close to the morphotropic phase boundary. Investigations were performed for various types of lower valent substituents on the B-site cation positions. It has been found possible to introduce "hard" P-E characteristics in "soft" PMN-PT and PSN-PT ferroelectric ceramics. In PMN-PT, only Mn was found to be effective in introducing such characteristics, however, in PSN-PT various lower valent substituents on higher valent sites were found to be effective. The results indicate that using a defect-engineering approach that it may be possible to develop materials with combinatory characteristics of hard and soft ferroelectrics. (C) 2001 American Institute of Physics.

引用

页码：3928 / 3933

页数：6

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