Influence of multi-ion co-doping and NiFe2O4 layer on the properties of BiFeO3/NiFe2O4 composite films by sol-gel

被引：8

作者：

Liu, Wenlong ^{[1
]}

Tan, Guoqiang ^{[1
]}

Dong, Guohua ^{[1
]}

Ren, Huijun ^{[1
]}

Xia, Ao ^{[1
]}

机构：

[1] Shaanxi Univ Sci & Technol, Sch Mat Sci & Engn, Xian 710021, Peoples R China

来源：

MATERIALS LETTERS | 2015年 / 142卷

基金：

中国国家自然科学基金;

关键词：

Electronic materials; Ferroelectrics; Interfaces; Magnetic materials; MAGNETIC-PROPERTIES; THIN-FILM;

D O I：

10.1016/j.matlet.2014.11.141

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pure BiFeO3 (BFO), BiFeO3/NiFe2O4 (BFO/NFO) and multi-ion co-doped Bi0.89Sm0.11Fe0.34Mn0.04Cr0.02O3/NiFe2O4 (BSFMC/NFO) thin films have been synthesized by using a sot-gel method. The influences of multi-ion co-doping and NFO layer co-doping on its crystalline structural, leakage current and multi-ferroic properties are investigated. The results indicate that an asymmetry of J-E curves at negative and positive applied electric fields is clearly observed in the BFO/NFO and BSFMC/NFO films, which is apparently related to the effects of the interface between the BFO and NFO layers. Moreover, improved ferroelectric and ferromagnetic properties are observed in the BSFMC/NFO film simultaneously, e.g. large remanent polarization and saturation magnetization is 66.18 mu C/cm(2) and 34.20 emu/cm(3), respectively. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：27 / 29

页数：3

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