Glassy to inhomogeneous-ferroelectric crossover in (Pb, La)(Zr, Ti)O3 ceramics

被引：35

作者：

Bobnar, V ^{[1
]}

Kutnjak, Z ^{[1
]}

Levstik, A ^{[1
]}

机构：

[1] Jozef Stefan Inst, Ljubljana 1001, Slovenia

来源：

APPLIED PHYSICS LETTERS | 2000年 / 76卷 / 19期

关键词：

D O I：

10.1063/1.126471

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The temperature dependence of the dielectric nonlinearity a(3)=epsilon(3)/epsilon(1)(4) has been determined in 9/65/35 (Pb, La)(Zr, Ti)O-3 ceramics. In zero electric field a deep in the temperature behavior of the static a(3) has been observed indicating a crossover from paraelectric-like to glass-like behavior on cooling towards the freezing transition. By varying a bias electric field another glass-to-ferroelectric crossover has been observed in the temperature dependence of the static a(3). The observed crossovers as well as the temperature dependence of the linear static dielectric constant agree with the predictions of the spherical random-bond-random-field model of relaxor ferroelectrics. (C) 2000 American Institute of Physics. [S0003-6951(00)04319-9].

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页码：2773 / 2775

页数：3

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