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

被引：194

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.

引用

页码：114 / 118

页数：5

共 18 条

[1] SPACE-CHARGE RELAXATION IN PEROVSKITES [J].

BIDAULT, O ;

GOUX, P ;

KCHIKECH, M ;

BELKAOUMI, M ;

MAGLIONE, M .

PHYSICAL REVIEW B, 1994, 49 (12) :7868-7873

[2] High frequency dielectric relaxation in Pb(Sc1/2Ta1/2)O-3 ceramics [J].

Chu, F ;

Setter, N ;

Elissalde, C ;

Ravez, J .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1996, 38 (1-2) :171-176

[3] CORRELATION BETWEEN DIELECTRIC-PROPERTIES AND NANOSTRUCTURE IN A PB(IN1/2NB1/2)O3 CERAMIC [J].

ELISSALDE, C ;

WEILL, F ;

RAVEZ, J .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1994, 25 (01) :85-91

[4] THE LOW AND HIGH-FREQUENCY DIELECTRIC RELAXATIONS IN LEAD MAGNESIUM NIOBATE CERAMICS [J].

ELISSALDE, C ;

RAVEZ, J ;

GAUCHER, P .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1993, 20 (03) :318-323

[5] HIGH-FREQUENCY DIELECTRIC-RELAXATION IN LEAD MAGNESIUM NIOBATE CERAMICS [J].

ELISSALDE, C ;

RAVEZ, J ;

GAUCHER, P .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1992, 13 (04) :327-333

[6] DISPLACIVE TO ORDER-DISORDER CROSSOVER IN THE CUBIC-TETRAGONAL PHASE-TRANSITION OF PBTIO3 [J].

FONTANA, MD ;

IDRISSI, H ;

WOJCIK, K .

EUROPHYSICS LETTERS, 1990, 11 (05) :419-424

[7] TI-INDUCED AND MODIFIED DIELECTRIC RELAXATIONS IN PBZR1-XTIXO3 SINGLE-CRYSTALS (X-LESS-THAN-OR-EQUAL-TO-0.03) IN THE FREQUENCY-RANGE 10HZ-10MHZ [J].

JANKOWSKASUMARA, I ;

ROLEDER, K ;

DEC, J ;

MIGA, S .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1995, 7 (30) :6137-6149

[8] Dielectric dispersions in PbHf0.98Ti0.02O3 single crystals below 10 MHz [J].

JankowskaSumara, I ;

Roleder, K ;

Dec, J ;

Miga, S .

FERROELECTRICS, 1997, 193 (1-4) :149-155

[9]

Jonscher A. K., 1983, Dielectric Relaxation in Solids

[10] LOCAL ORDER IN THE CUBIC PHASE OF ABO3 PEROVSKITES [J].

MAGLIONE, M ;

JANNOT, B .

PHASE TRANSITIONS, 1991, 33 (1-4) :23-29

← 1 2 →