Ferroelectric properties of LaAlO3/BaTiO3 superlattices prepared by laser molecular-beam epitaxy -: art. no. 094103

被引：10

作者：

Li, Y ^{[1
]}

Hao, LZ ^{[1
]}

Deng, H ^{[1
]}

Chen, FG ^{[1
]}

Li, YR ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Microelect & Solid State Elect, Chengdu 610054, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2005年 / 97卷 / 09期

关键词：

D O I：

10.1063/1.1887829

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

LaAlO3/BaTiO3 superlattices were obtained on (100)-oriented Nb-doped SrTiO3 substrates by laser molecular-beam epitaxy. The x-ray diffraction spectra indicated that the c-axis strain changed with the layer thickness of the superlattices. The relation of the ferroelectric properties to the strain was studied with the different stacking periodicity at a fixed periodic number. The results showed that the strains played an important role on remnant polarization. The maximum remanent polarization was obtained at the highest c-axis strain stacking periodicity of 4/4. The use of a LaAlO3 cap layer enhanced the ferroelectric properties due to the restricted strain effect. (C) 2005 American Institute of Physics.

引用

页数：3

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