Multiferroic properties of Bi3.15Nd0.85Ti3O12-NiFe2O4-Bi3.15Nd0.85Ti3O12 trilayer composite thin films prepared by a sol-gel process

被引：3
作者：
Yang, Feng [1 ,2 ,3 ]
Zhang, Fuwei [1 ]
Dong, Cuifang [1 ]
Liu, Fen [3 ,4 ]
Tang, Minghua [4 ]
机构：
[1] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Peoples R China
[2] Univ Jinan, Shandong Prov Key Lab Preparat & Measurement Bldg, Jinan 250022, Peoples R China
[3] Univ Jinan, Key Lab Inorgan Funct Mat, Shandong Univ, Jinan 250022, Peoples R China
[4] Xiangtan Univ, Minist Educ, Key Lab Low Dimens Mat & Applicat Technol, Xiangtan 411105, Hunan, Peoples R China
来源：
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2015年 / 73卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Multiferroic; Trilayer films; Bi3.15Nd0.85Ti3O12; NiFe2O4; Sol-gel method; Magnetoelectric effect; Converse magnetoelectric effect; ELECTRIC-FIELD CONTROL; FERROELECTRIC PROPERTIES; OXIDE INTERFACE; EXCHANGE BIAS; TEMPERATURE; FERROMAGNETISM; HETEROSTRUCTURES; TRANSITION; PROGRESS; BIFEO3;
D O I：
10.1007/s10971-014-3563-6
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Lead-free multiferroic Bi3.15Nd0.85Ti3O12-NiFe2O4-Bi3.15Nd0.85Ti3O12 trilayer composite thin films were oriented and deposited on LaNiO3/Si substrates via sol-gel method. In the heterostructures, the coexistence of ferroelectric polarization (P (r) = 7 mu C/cm(2)), magnetization (M (s) = 110 emu/cm(3)), high in-plane magnetoelectric voltage coefficient (alpha(E) = 43 mV/cm Oe), and distinct converse magnetoelectric effect has been validated at room temperature, which is advantageous for multi-functional devices. The improved magnetic and magnetoelectric properties may be due to the oriented growth, whereas the ferroelectric properties was enhanced because of the improved fatigue endurance properties and reduced leakage current.
引用
收藏
页码：469 / 475
页数：7
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