Strong magnetoelectric coupling in sol-gel derived multiferroic (Pb0.76Ca0.24) TiO3-CoFe2O4 composite films

被引：6
|
作者：
Cheng, T. D. [1 ,2 ,3 ,4 ]
Tang, X. G. [1 ]
Wang, Yu [3 ,4 ]
Chan, H. L. W. [3 ,4 ]
机构：
[1] Guangdong Univ Technol, Guangzhou Higher Educ Mega Ctr, Sch Phys & Optoelect Engn, Guangzhou 510006, Guangdong, Peoples R China
[2] Jiangxi Univ Sci & Technol, Sch Mech & Elect, Ganzhou 341000, Peoples R China
[3] Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China
[4] Hong Kong Polytech Univ, Mat Res Ctr, Kowloon, Hong Kong, Peoples R China
来源：
SOLID STATE SCIENCES | 2012年 / 14卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Magnetoelectric effect; Multiferroic; PCT films; Composite films; Sol-gel; THIN-FILMS; MAGNETIC-PROPERTIES; LEAKAGE CURRENT; ANISOTROPY; BEHAVIOR; MGO;
D O I：
10.1016/j.solidstatesciences.2012.08.018
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A multilayer heterostructure composite thin films consisting of alternating layers (Pb0.26Ca0.24)TiO3 (PCT) and CoFe2O4 (CFO) were grown on Pt/Ti/SiO2/Si(100) substrate by a sol-gel process. X-ray measurements indicated high quality of crystallization of both per and CFO layers. The magnetic and ferroelectric properties of the composite were investigated. Well-defined polarization vs. electric field (P E) and magnetic hysteresis (M-H) loops were obtained. A strong magnetoelectric (ME) response was observed in the sample which was subjected to an alternating magnetic field, and a high ME voltage coefficient alpha(E) = 870 mV/Oe cm was obtained for the composite thin films when applied magnetic field parallel to the sample plane. (C) 2012 Elsevier Masson SAS. All rights reserved.
引用
收藏
页码：1492 / 1495
页数：4
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