Mechanism of the Pyroelectric Response under Direct-Current Bias in La-Modified Lead Zirconate Titanate Stannate Ceramics

被引：1

作者：

Zhang Hong-Ling ^{[1
]}

Wang Gen-Shui ^{[1
]}

Chen Xue-Feng ^{[1
]}

Cao Fei ^{[1
]}

Dong Xian-Lin ^{[1
]}

Gu Yan ^{[2
]}

He Hong-Liang ^{[2
]}

Liu Yu-Sheng ^{[2
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Inorgan Funct Mat & Devices, Shanghai 200050, Peoples R China

[2] Inst Fluid Phys, Natl Key Lab Shock Wave & Detonat Phys, Mianyang 621900, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2011年 / 28卷 / 09期

关键词：

THIN-FILMS; DETECTOR; SYSTEM; FIELD;

D O I：

10.1088/0256-307X/28/9/097701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Dielectric and pyroelectric properties of Pb0.97La0.02(Zr0.42Sn0.40Ti0.18)O-3 ceramics are investigated as functions of temperature and dc bias field. Induced and intrinsic pyroelectric coefficients p(ind) and p(0) are calculated and analyzed. It is found that the sign, value and variation of the net pyroelectric coefficient.. with increasing dc bias all are dominated by p(0) under applied biases. Polarization and depolarization processes under dc biases are analyzed. Besides the contribution of p(ind), the diffuse and decreased pyroelectric response under dc bias compared with that of an identical field poled sample without dc bias is mainly attributed to the depolarization process under dc bias.

引用

页数：4

共 17 条

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