The low-frequency dielectric relaxation Na0.5Bi0.5TiO3 ceramics

被引：191
|
作者：
Suchanicz, J [1 ]
机构：
[1] Pedag Univ, Inst Phys & Comp Sci, PL-30084 Krakow, Poland
来源：
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 1998年 / 55卷 / 1-2期
关键词：
ferroelectrics; dielectric relaxation; Na0.5Bi0.5TiO3; ceramics;
D O I：
10.1016/S0921-5107(98)00188-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Dielectric measurements, carried out on Na0.5Bi0.5TiO3 ceramics, revealed behaviour-dependency of both temperature and frequency. Two relaxation processes for frequencies from 20 Hz to 1 MHz are observed. The first relaxation process could be attributed to space charge. The second is low-frequency dipolar relaxation in the frequency range up to 100 kHz at 833 K and close to 0.5 kHz at 493 K, and could be related to the existence of polar regions in Na0.5Bi0.5TiO3-. (C) 1998 Elsevier Science S.A. All rights reserved.
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页码：114 / 118
页数：5
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