Significantly enhanced ferroelectric and dielectric properties in BaTiO3/LaNiO3 superlattices

被引：6

作者：

Lin, Jun Liang ^{[1
,2
]}

Wang, Zhan Jie ^{[1
,2
,3
]}

Zhao, Xiang ^{[1
]}

Zhang, Zhi Dong ^{[2
]}

机构：

[1] Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China

[2] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China

[3] Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China

来源：

SCRIPTA MATERIALIA | 2020年 / 179卷 / 179期

关键词：

BaTiO3; Superlattice; Laser deposition; Microstructure; Electrical properties;

D O I：

10.1016/j.scriptamat.2020.01.010

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

BaTiO3/LaNiO3 (BTO/LNO) ferroelectric superlattices with different stacking periods have been prepared by pulsed laser deposition (PLD). Compared to the pure BTO films, the BTO/LNO superlattices have significantly enhanced ferroelectric and dielectric properties. This is because, in addition to the strain effect, the accumulated oxygen vacancies in each ultra-thin LNO layer can change the depolarization field and reduce the leakage current in the superlattices. The results indicate that the use of ultra-thin metallic oxide layers as the constituent material of the ferroelectric superlattices is a feasible and effective way to improve the properties of superlattices. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：102 / 106

页数：5

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