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Ferroelectrics Volume 521, 2017 - Issue 1: The Joint Symposium of the Seventh International Conference of the Chinese Society of Micro-Nano Technology and Microsystems and Nanoengineering Summit 2016 (CSMNT2016 & MAN2016), Part I
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Articles

Ferroelectric and magnetoelectric properties of (Bi, La)Ti3O12-CoFe2O4 composite thin films derived by a chemical solution deposition process

C. P. ChengFaculty of Science, Hunan Institute of Engineering, Xiangtan, Hunan, ChinaCorrespondence[email protected] [email protected]
,
Y. C. LiaoSchool of Materials Science and Engineering, University of Science and Technology of Hunan, Xiangtan, Hunan, China
,
W. Z. XiaoFaculty of Science, Hunan Institute of Engineering, Xiangtan, Hunan, China
,
Q. Y. RongFaculty of Science, Hunan Institute of Engineering, Xiangtan, Hunan, China
&
M. F. WangShenzhen Novsin Technology Limited Company, Shenzhen, Guangdong, China
Pages 18-25 | Received 19 May 2017, Accepted 31 Aug 2017, Published online: 13 Dec 2017
 
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ABSTRACT

Multiferroic xBi3.25La0.75Ti3O12-(1-x)CoFe2O4 composite thin films with x = 0.5, 0.6, and 0.7 were deposited on Pt/Ti/SiO2/Si(100) substrates by a chemical solution deposition process. The well-defined ferroelectric loops are observed. The Pr values are 8.89, 11.97, and 13.78 μC/cm2 under the condition of about 350 kV/cm electric field for the composite films with x = 0.5, 0.6, and 0.7 respectively. The composite films exhibit typical magnetic hysteresis loops, as well as remnant magnetizations. Magnetoelectric effect which is dependent on Hbias is observed. The composite films exhibit both good ferroelectric and magnetic properties at room temperature, as well as a magnetoelectric effect.

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