The Dielectric Relaxation in Solid Solutions BaTi1-xZrxO3

被引：71

作者：

Shvartsman, V. V. ^{[1
]}

Zhai, J. ^{[2
]}

Kleemann, W. ^{[1
]}

机构：

[1] Univ Duisburg Essen, Duisburg, Germany

[2] Tongji Univ, Funct Mat Res Lab, Shanghai 200092, Peoples R China

来源：

FERROELECTRICS | 2009年 / 379卷

关键词：

Lead-free relaxors; barium titanate; dielectric spectroscopy; piezoresponse force microscopy; RELAXOR BEHAVIOR; CROSSOVER; STATE; MODE;

D O I：

10.1080/00150190902850822

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The low frequency dielectric relaxation of BaTi1-xZrxO3 ceramics is investigated by means of dielectric spectroscopy. The ferroelectric state of compositions with x <= 0.20 was verified by piezoresponse force microscopy. Correspondingly, domain wall relaxation was revealed in dielectric spectra for these compositions. The gradual crossover from ferroelectric to relaxor behavior in samples with larger zirconium content is characterized by both vanishing of the contribution due to domain walls and the appearance of relaxation related to reorientation of polar nanosized regions. The appearance of relaxor properties is supposed to be due to both weak random fields and disorder inherent

引用

页码：301 / 309

页数：9

共 22 条

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[Anonymous], 1993, SPIN GLASSES EXPT IN

[2] Quasi-ferroelectric state in Ba(Ti1-xZrx)O3 relaxor:: dielectric spectroscopy evidence [J].