Phase transitions and electrical characteristics of tungsten substituted barium titanate

被引：25

作者：

Devi, Sheela ^{[1
]}

Jha, A. K. ^{[1
]}

机构：

[1] Univ Delhi, Dept Appl Phys, Delhi Coll Engn, Fac Technol, Delhi 110042, India

来源：

PHYSICA B-CONDENSED MATTER | 2009年 / 404卷 / 21期

关键词：

Ferroelectrics; Dielectric response; Phase transitions; THIN-FILMS; IMPEDANCE SPECTROSCOPY; CERAMICS; SRBI2TA2O9; HISTORY;

D O I：

10.1016/j.physb.2009.08.064

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In the present work, phase transitions and electrical characteristics of tungsten substituted barium titanate are reported. Structural analysis of the prepared samples was carried out to confirm the formation of the compounds in proper phase. Scanning electron micrographs of the compounds have been used to investigate the grain morphology of the material. The dielectric properties of the samples have been studied as a function of temperature and frequency. The variation of dielectric constant (E,) with temperature shows a diffuse kind of ferro-paraelectric phase transition. The diffusitivity of the phase transitions has been calculated. Complex impedance spectroscopy analysis was carried out to investigate the electrical characteristics of the specimen. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：4290 / 4294

页数：5

共 29 条

[1]

[Anonymous], 1918, Kolloidchemie Ein Lehrbuch, DOI DOI 10.1007/978-3-662-33915-2_7

[2] PREPARATION OF BI-BASED FERROELECTRIC THIN-FILMS BY SOL-GEL METHOD [J].

ATSUKI, T ;

SOYAMA, N ;

YONEZAWA, T ;

OGI, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1995, 34 (9B) :5096-5099

[3] Impedance spectroscopy study of NaBa2V5O15 ceramic [J].

Behera, Banarji ;

Nayak, P. ;

Choudhary, R. N. P. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2007, 436 (1-2) :226-232

[4] Dielectric behavior of Nb-doped Ba(ZrxTi1-x)O3 [J].

Cao, Wanqiang ;

Xiong, Junwen ;

Sun, Juanpin .

MATERIALS CHEMISTRY AND PHYSICS, 2007, 106 (2-3) :338-342

[5] Impedance spectroscopy of SrBi2Ta2O9 and SrBi2Nb2O9 ceramics correlation with fatigue behavior [J].

Chen, TC ;

Thio, CL ;

Desu, SB .

JOURNAL OF MATERIALS RESEARCH, 1997, 12 (10) :2628-2637

[6] Structural dielectric and electrical studies in tungsten doped SrBi2Ta2O9 ferroelectric ceramics [J].

Coondoo, Indrani ;

Jha, A. K. ;

Agarwal, S. K. .

CERAMICS INTERNATIONAL, 2007, 33 (01) :41-47

[7] Enhancement of dielectric characteristics in donor doped Aurivillius SrBi2Ta2O9 ferroelectric ceramics [J].

Coondoo, Indrani ;

Jha, A. K. ;

Agarwal, S. K. .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2007, 27 (01) :253-260

[8]

DANIELS J, 1976, PHILIPS RES REP, V31, P487

[9] Correction of zero shift in powder diffraction patterns using the reflection-pair method [J].

Dong, C ;

Wu, F ;

Chen, H .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1999, 32 :850-853

[10] Relaxer-like and spectroscopic properties of niobium modified barium titanate [J].

Farhi, R ;

El Marssi, M ;

Simon, A ;

Ravez, J .

EUROPEAN PHYSICAL JOURNAL B, 2000, 18 (04) :605-610

← 1 2 3 →