Fatigue of piezoelectric properties in Pb(Zr,Ti)O-3 films

被引：121

作者：

Kholkin, AL

Colla, EL

Tagantsev, AK

Taylor, DV

Setter, N

机构：

[1] Laboratoire de Céramique, EPFL

来源：

APPLIED PHYSICS LETTERS | 1996年 / 68卷 / 18期

关键词：

D O I：

10.1063/1.116189

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Piezoelectric properties of Pb(Zr,Ti)O-3 thin films are investigated as a function of the number of bipolar (switching) and unipolar (nonswitching) voltage pulses. The longitudinal piezoelectric coefficient d(33) decreases with bipolar fatigue reflecting the decrease of switchable polarization. Simultaneously, a strong vertical shift of piezoelectric hysteresis loops is observed, which is considered as the buildup of fixed internal polarization due to the pinning of ferroelectric domains in a preferred orientation. Piezoelectric fatigue induced by unipolar (nonswitching) pulses is considerably smaller than the fatigue under bipolar conditions and can be described by the internal bias field which shifts piezoelectric hysteresis loops along the field axis. (C) 1996 American Institute of Physics.

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页码：2577 / 2579

页数：3

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