The onset of an electric field-induced ferroelectric-like phase in the perovskite Pb(Mg1/3Nb2/3)O-3

被引：33

作者：

Bidault, O

Licheron, M

Husson, E

Morell, A

机构：

[1] CNRS,CRPHT,F-45071 ORLEANS 02,FRANCE

[2] THOMSON CSF,LCR,F-91404 ORSAY,FRANCE

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1996年 / 8卷 / 42期

关键词：

D O I：

10.1088/0953-8984/8/42/020

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We study the effect of DC electric field application on a Pb(Mg1/3Nb2/3)O-3 ceramic by impedance spectroscopy and depolarization current measurements. The results indicate the onset of a true ferroelectric phase, characterized by long-range order, instead of a glassy one. The 'freezing' temperature deduced from the Vogel-Fulcher relationship coincides with the phase transition one, whereas the fitted relaxation frequency displays a minimum, as in usual ferroelectrics. The chemical and physical structure of the material is the key parameter to understand the dielectric response which results both from the clusters' dynamics and from their development.

引用

页码：8017 / 8026

页数：10

共 24 条

[1]

ARNDT H, 1988, FERROELECTRICS, V79, P145

[2]

BIDAULT O, 1996, SOLID STATE COMMUN, V78, P765

[3] X-RAY AND NEUTRON-DIFFRACTION STUDIES OF THE DIFFUSE PHASE-TRANSITION IN PBMG1/3NB2/3O3 CERAMICS [J].