Temperature dependence of tunability of Ba(SnxTi1-x)O3 ceramics

被引：34

作者：

Curecheriu, Lavinia P. ^{[1
]}

Ianculescu, Adelina C. ^{[2
]}

Horchidan, Nadejda ^{[1
]}

Stoleriu, Stefania ^{[2
]}

Tudorache, Florin ^{[1
]}

Tascu, Sorin ^{[1
]}

Mitoseriu, Liliana ^{[1
]}

机构：

[1] Alexandru Ioan Cuza Univ, Dept Phys, Iasi 700506, Romania

[2] Polytech Univ, Dept Oxide Mat Sci & Engn, Bucharest 011061, Romania

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 109卷 / 08期

关键词：

THIN-FILMS; VOLTAGE;

D O I：

10.1063/1.3567947

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The electric field dependence of the dielectric constant (dc-tunability) as a function of temperature for a few compositions of Ba(Sn,Ti)O-3 ceramics was investigated. Dense and homogeneous BaSnxTi1-xO3 ceramics (ferroelectric for x = 0.05 and x = 0.10, relaxor for x = 0.15 and 0.20) with high dielectric constant and low dielectric losses were prepared by solid state reaction. Their dc-tunability characteristics were investigated at a few temperatures from 20-120 degrees C, including the Curie range. The tunability data were discussed in terms of the Johnson model completed with a Langevin term that describes the "extrinsic" contribution to the nonlinear epsilon(E) dependences. (C) 2011 American Institute of Physics. [doi:10.1063/1.3567947]

引用

页数：5

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