The crossover from a ferroelectric to a relaxor state in lead-free solid solutions

被引：183

作者：

Simon, A ^{[1
]}

Ravez, J ^{[1
]}

Maglione, M ^{[1
]}

机构：

[1] CNRS, ICMCB, F-33608 Pessac, France

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2004年 / 16卷 / 06期

关键词：

D O I：

10.1088/0953-8984/16/6/023

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We investigate the gradual crossover from ferroelectric to relaxor behaviour versus substitution in lead-free ceramics. We show that the Vogel-Fulcher law in the relaxor state is the extrapolation of the ferroelectric line. To explain this extrapolation, we suggest that both the host matrix and the impurity induced clusters are triggered by the BaTiO3 soft mode correlation length. The Ti-O bond oscillations are the key mechanism.

引用

页码：963 / 970

页数：8

共 20 条

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