Enhanced Curie temperature and magnetoelectric effect in BaTiO3-based piezoelectrics and NiFe2O4 composite thin films deposited via pulsed laser deposition

被引：2
作者：
Dai, Qingping [1 ,2 ]
Guo, Kaixin [1 ]
Deng, Chaoyong [1 ]
机构：
[1] Guizhou Univ, Coll Big Data & Informat Engn, Key Lab Elect Composites Guizhou Prov, Guiyang 550025, Guizhou, Peoples R China
[2] Guizhou Normal Univ, Key Lab Low Dimens Condensed Matter Phys, Higher Educ Inst Guizhou Prov, Guizhou Prov Key Lab Radio Astron & Data Proc,Sch, Guiyang 550001, Guizhou, Peoples R China
来源：
MODERN PHYSICS LETTERS B | 2019年 / 33卷 / 11期
关键词：
Magnetoelectric effect; multiferroic material; composite thin film;
D O I：
10.1142/S0217984919501306
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Multiferroic NiFe2O4/0.8BaTiO(3)-0.2Na(0.5)Bi(0.5)TiO(3) bilayer thin film epitaxially grown on (001)-SrRuO3/SrTiO3 substrate was prepared by pulsed laser deposition. Excellent ferroelectric, magnetoelectric properties and a higher Curie temperature were observed in the NiFe2O4/0.8BaTiO(3)-0.2Na(0.5)Bi(0.5)TiO(3) composite thin film compared with the NiFe2O4/BaTiO3 composite thin film. In particular, the remnant and saturated polarizations of NiFe2O4/0.8BaTiO(3)-0.2Na(0.5)Bi(0.5)TiO(3) are 35.2 mu C/cm(2) and 96.1 mu C/cm(2), respectively, and the maximum magnetoelectric coefficient can reach up to 96 mV.cm(-1).Oe(-1), which are larger than those of the NiFe2O4/BaTiO3 composite thin film (18.8, 44.5 mu C/cm(2), and 60 mV.cm(-1).Oe(-1)).
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页数：8
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