Electrical properties of sol-gel processed barium titanate films

被引：37

作者：

Sharma, HB ^{[1
]}

Sarma, HNK

机构：

[1] Manipur Univ, Dept Phys, Imphal 795003, Manipur, India

[2] GP Womens Coll, Dept Phys, Imphal 795001, Manipur, India

来源：

THIN SOLID FILMS | 1998年 / 330卷 / 02期

关键词：

barium oxide; electrical properties; liquid phase epitaxy; titanium oxide;

D O I：

10.1016/S0040-6090(98)00551-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The sol-gel technique has been used to prepare ferroelectric barium titanate (BaTiO3) films. The electrical properties of the films have been investigated systematically. The room temperature dielectric constant (epsilon) and loss tangent (tan delta) at 1 kHz were respectively found to be 370 and 0.012. Both epsilon and tan delta showed anomaly peaks at 125 degrees C. The room temperature remanant polarization (P-t) and coercive field (E-c) were found to be 3.2 mu C/cm(2) and 30 kV/cm, respectively. The capacitance-voltage (C-V) and conductance-voltage (G-V) characteristics also showed hysteresis effect. The temperature variation of C-V and G-V characteristics also confirms the ferroelectric to paraelectric phase transition at 125 degrees C. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：178 / 182

页数：5

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