Wide Range Dielectric Spectroscopy of Barium Strontium Titanate Ceramics

被引：1
|
作者：
Teranishi, Takashi [1 ]
Hoshina, Takuya [1 ]
Takeda, Hiroaki [1 ]
Tsurumi, Takaaki [1 ]
机构：
[1] Tokyo Inst Technol, Grad Sch Sci & Engn, Meguro Ku, Tokyo 1528552, Japan
来源：
ASIAN CERAMIC SCIENCE FOR ELECTRONICS III AND ELECTROCERAMICS IN JAPAN XII | 2010年 / 421-422卷
关键词：
barium strontium titanate; dielectric spectroscopy; ferroelectrics; polar nanoregions; TUNABLE APPLICATIONS; MICROWAVE;
D O I：
10.4028/www.scientific.net/KEM.421-422.273
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Wide band dielectric spectroscopy was applied from kHz to THz region for the analysis of both the ionic and the dipole polarization in Ba(0.6)Sr(0.4)TiO(3) ceramics. The dielectric permittivity above the dielectric maximum temperature (T(m)) is mostly dominated by the ionic polarization, while that below T(m) is governed by the dipole polarization. Dielectric permittivity given by the dipole polarization increased and the relaxation frequency decreased with decreasing temperature. These phenomena are related to a increase of the size of polar nanoregions (PNRs).
引用
收藏
页码：273 / 276
页数：4
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