Orientation-Dependent Properties of CoFe2O4-Bi3.15Nd0.85Ti3O12 Bilayer Multiferroic Films Prepared by a Sol-Gel Method

被引：9

作者：

Zhang, Fuwei ^{[1
]}

Yang, Feng ^{[1
,2
]}

Dong, Cuifang ^{[1
]}

Liu, Xiaotong ^{[1
]}

Nan, Huilin ^{[1
]}

Wang, Yingying ^{[1
]}

Zong, Zhihao ^{[1
]}

Tang, Minghua ^{[3
]}

机构：

[1] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Peoples R China

[2] Univ Jinan, Key Lab Inorgan Funct Mat Univ Shandong, Jinan 250022, Peoples R China

[3] Hunan Prov Natl Def Key Lab Key Film Mat & Applic, Xiangtan 411105, Peoples R China

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2015年 / 44卷 / 07期

基金：

中国国家自然科学基金;

关键词：

CoFe2O4-Bi3.15Nd0.85Ti3O12; multiferroic; bilayer films; orientation; sol-gel method;

D O I：

10.1007/s11664-015-3689-5

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Lead-free bilayer multiferroic films of CoFe2O4 (CFO) and oriented Bi3.15Nd0.85Ti3O12 (BNT) were deposited on a conventional Pt(111)/Ti/SiO2/Si(100) substrate by use of a sol-gel method. BNT layers with different preferred orientations were grown by use of different spinning and annealing processes. The ferroelectric, ferromagnetic, and magnetoelectric (ME) properties of the CFO-BNT bilayer thin films were investigated at room temperature. a-Axis-oriented bilayer films had larger ME voltage coefficients and larger converse ME response than c-axis-oriented films. This study shows that the orientation of the BNT layer has a stress-mediated interfacial effect which can substantially affect the magnetoelectric coupling behavior of the bilayer structures.

引用

页码：2348 / 2352

页数：5

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