Polarization switching and fatigue in Pb(Zr0.52Ti0.48)O3 films sandwiched by oxide electrodes with different carrier types

被引：33

作者：

Chen, Feng ^{[1
]}

Liu, Q. Z. ^{[1
]}

Wang, H. F. ^{[1
]}

Zhang, F. H. ^{[1
]}

Wu, Wenbin ^{[1
]}

机构：

[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Anhua 230026, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 19期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2737912

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

By using highly conductive p-type La0.7Sr0.3MnO3 (LSMO) and n-type La0.07Sr0.93SnO3 (LSSO) as electrodes, all-oxide Pb(Zr0.52Ti0.48)O-3 (PZT) capacitors, LSMO/PZT/LSMO, LSSO/PZT/LSSO, LSSO/PZT/LSMO, and LSMO/PZT/LSSO, have been grown epitaxially on (001)SrTiO3 substrates, and their structure, switching, fatigue, and optical properties were investigated. Strikingly, contrary to the LSMO/PZT/LSMO capacitors, those having the n-type electrode show poor fatigue resistance especially at lower driving frequencies, which was further confirmed by using another n-type oxide electrode, SrTi0.9Sb0.1O3. The results suggest that with a depletion layer at the PZT/LSSO interface, charge accumulation and injection during switching may be responsible for the fatigue. (C) 2007 American Institute of Physics.

引用

页数：3

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