Apparent colossal dielectric relaxation in SrTiO3 at high temperature

被引：6

作者：

Fukunaga, M

Uesu, Y

Kobayashi, W

Terasaki, I

机构：

[1] Waseda Univ, Dept Phys, Shinjuku Ku, Tokyo 1698555, Japan

[2] Waseda Univ, Dept Appl Phys, Shinjuku Ku, Tokyo 1698555, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2005年 / 44卷 / 9B期

关键词：

SrTiO3; dielectric relaxation; heterogeneity;

D O I：

10.1143/JJAP.44.7141

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Complex dielectric constants of SrTiO3 ceramics and single crystals were measured in the temperature range of 303 K to 673 K and the frequency range of 100 mHz to 100 kHz. It was found that the ceramic sample exhibits a steplike colossal dielectric relaxation similar to the distorted perovskite CaCu3Ti4O12, while the single crystal exhibits a relaxor-like relaxation. Both features can be explained with a heterogeneous structure model.

引用

收藏

页码：7141 / 7143

页数：3

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