Polarization fatigue in antiferroelectric (Pb,La)(Zr,Ti)O3 thin films: The role of the effective strength of driving waveform

被引：6

作者：

Geng, Wenping ^{[1
,2
,3
]}

Liu, Yang ^{[2
,3
,4
]}

Lou, Xiaojie ^{[2
,3
]}

Zhang, Fuping ^{[5
]}

Liu, Qida ^{[6
]}

Dkhil, Brahim ^{[4
]}

Zhang, Ming ^{[2
,3
]}

Ren, Xiaobing ^{[2
,3
]}

He, Hongliang ^{[5
]}

Jiang, Anquan ^{[1
]}

机构：

[1] Fudan Univ, Sch Microelect, State Key Lab ASIC & Syst, Shanghai 200433, Peoples R China

[2] Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, Multidisciplinary Mat Res Ctr, Xian 710049, Peoples R China

[3] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China

[4] Ecole Cent Paris, Lab Struct Proprietes & Modelisat Solides, UMR 8580, CNRS, F-92295 Chatenay Malabry, France

[5] CAEP, Nat Key Lab Shock Wave & Detonat Phys, Inst Fluid Phys, Mianyang 621900, Peoples R China

[6] Xi An Jiao Tong Univ, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2015年 / 41卷

基金：

中国国家自然科学基金;

关键词：

Sol-gel processes; Thin films; Electronic properties; ELECTRIC FATIGUE; SN; BEHAVIOR; CAPACITORS; CERAMICS; PB;

D O I：

10.1016/j.ceramint.2015.03.265

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this study, a critical parameter termed as "effective electric strength" is developed to depict polarization fatigue in antiferroelectric thin films. Specifically, the effect of pulse width, frequency, and magnitude of driving voltage (or field) on polarization fatigue of antiferroelectric (Pb,La) (Zr,Ti)O-3 (PLZT) thin films was investigated in detail. By transforming all the waveforms with different pulse-widths/voltages/frequencies into their effective electric strength, a strong correlation between the effective strength and the degree of polarization fatigue in the PLZT films is revealed. For instance, it was found that appreciable fatigue usually occurs when the effective strength is larger than or equal to the voltage of phase transition from antiferroelectric phase to ferroelectric phase. In addition, it is shown that the films are more prone to fatigue for a lower frequency of the same effective strength. Our findings could be well explained in the framework of the local phase decomposition arising from switching induced charge injection. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：S289 / S295

页数：7

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