Broadband dielectric spectroscopy on single-crystalline and ceramic CaCu3Ti4O12

被引：131

作者：

Krohns, S. ^{[1
]}

Lunkenheimer, P. ^{[1
]}

Ebbinghaus, S. G. ^{[1
]}

Loidl, A. ^{[1
]}

机构：

[1] Univ Augsburg, Expt Phys 5, Ctr elect Correlat & Magnetism, D-86135 Augsburg, Germany

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 02期

关键词：

D O I：

10.1063/1.2757098

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The authors present dielectric measurements of the colossal dielectric constant material CaCu3Ti4O12 extending up to 1.3 GHz also covering so far only rarely investigated single-crystalline samples. Special emphasis is put on the second relaxation reported in several works on polycrystals, which the authors detect also in single crystals. For polycrystalline samples, the authors provide a recipe to achieve values of the dielectric constant as high as in single crystals. (C) 2007 American Institute of Physics.

引用

页数：3

共 20 条

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[2]

2-P

[3] Strong nonlinear current-voltage behaviour in perovskite-derivative calcium copper titanate [J].