Polarization Fatigue in Pb(In(0.5)Nb(0.5))O(3)-Pb(Mg(1/3)Nb(2/3))O(3)-PbTiO(3) Single Crystals.

Acta Materialia
Shujun ZhangThomas R Shrout

Abstract

Electric fatigue tests have been conducted on pure and manganese modified Pb(In(0.5)Nb(0.5))O(3)-Pb(Mg(1/3)Nb(2/3))O(3)-PbTiO(3) (PIN-PMN-PT) single crystals along different crystallographic directions. Polarization degradation was observed to suddenly occur above 50-100 bipolar cycles in <110> oriented samples, while <001> oriented samples exhibited almost fatigue free characteristics. The fatigue behavior was investigated as a function of orientation, magnitude of the electric field and manganese dopant. It was found that <001> oriented PIN-PMN-PT crystals were fatigue free, due to its small domain size, being on the order of 1µm. The <110> direction exhibited a strong electrical fatigue behavior due to mechanical degradation. Micro/macro cracks were developed in fatigued <110> oriented single crystals. Fatigue and cracks were the results of strong anisotropic piezoelectric stress and non-180° domain switching, which completely locked the non-180° domains. Furthermore, manganese modified PIN-PMN-PT crystals were found to show improved fatigue behavior due to its enhanced coercive field.

Citations

Jun 2, 2011·Applied Physics Letters·Shujun ZhangThomas R Shrout
Feb 24, 2011·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Shujun ZhangThomas Shrout
Jul 5, 2016·Applied Physics Letters·Shiyang LiWenwu Cao
Oct 14, 2016·Scientific Reports·Yaojin WangD Viehland
Oct 1, 2011·Advanced Functional Materials·Fei LiThomas R Shrout
Apr 9, 2021·Nature Communications·Qianwei HuangXiaozhou Liao

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