Phase transformation and electric field tunable pyroelectric behavior of Pb(Nb,Zr,Sn,Ti)O3 and (Pb,La)(Zr,Sn,Ti)O3 antiferroelectric thin films

被引：59

作者：

Xu, ZK ^{[1
]}

Zhai, JW

Chan, WH

Chen, HD

机构：

[1] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China

[2] Tunghai Univ, Dept Phys, Taichung 407, Taiwan

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 13期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2191413

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Phase transformation and pyroelectric behavior of Pb(Nb,Zr,Sn,Ti)O-3 (PNZST) and (Pb,La)(Zr,Sn,Ti)O-3 (PLZST) antiferroelectric (AFE) thin films were investigated as a function of temperature and dc bias field. A large pyroelectric coefficient of the order of similar to 3x10(-7) C cm(-2) K-1 was realized at the ferroelectric (FE) to AFE and the AFE to FE phase transformations in the PLZST and PNZST films, respectively. The phase transformation temperature could be readily adjusted by dc bias for both films. The large pyroelectric coefficient combined with excellent dc tunability at the phase transformation temperature makes these two systems promising candidates for uncooled tunable pyroelectric thermal sensing applications. (c) 2006 American Institute of Physics.

引用

页数：3

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