硅酸盐学报

复相多铁材料xCoFe2O4/(1–x)BaTiO3的制备及性能

作者：李亚代建清张瑞浩程振宇王志翔

关键词：铁酸钴钛酸钡铁电性磁性能多铁性

分类号：TQ174.75

出版年,卷(期):页码：2016,44(4):588-594

DOI：：10.14062/j.issn.0454-5648.2016.04.20

摘要：

采用固相合成法分别制备了尖晶石结构CoFe2O4和钙钛矿结构BaTiO3粉末，烧结得到xCoFe2O4/(1―x)BaTiO3(x=0.2, 0.4, 0.6, 0.8)复相多铁材料，对材料的成分、介电性能、铁电性、磁性能进行了表征。结果表明：当x=0.2时所得的复相多铁材料两相共存，无杂相，而其他组分均不同程度地存在杂相。复相多铁材料xCoFe2O4/(1―x)BaTiO3具有铁电性和铁磁性，且性能受铁磁相含量影响明显。随铁磁相组分增加，材料介电常数变小，漏电流增大，铁电性能变差；同时，铁磁相间颗粒接触面积增大，磁化作用得到加强，材料磁性能得到提升。

The multiferroic composite material xCoFe2O4/(1–x)BaTiO3 was prepared using spinel structure CoFe2O4 powder and perovskite structureBaTiO3 powder synthesized by a solid oxide reaction method. The components, dielectric property, ferroelectricity and magnetic property of the composite material were characterized. The results show that, when x is 0.2, the composite material consist of CoFe2O4 and BaTiO3 without impurity phase detected. The composite material demonstrates the ferroelectric and ferromagnetic behaviors, and its performance is affected by the content of ferromagnetic CoFe2O4. When the ferromagnetic component increases, the dielectric permittivity decreases, the leakage current increases, and the ferroelectricity degrades; meanwhile, the increase of ferromagnetic component increases the contact area of ferromagnetic particles, and enhances the magnetization and the magnetic property.

基金项目：

国家自然科学基金(51162019, 51462019)。

作者简介：

李亚(1990—)，男，硕士研究生。

参考文献：

[1] SCHMID H. Multiferroic magnetoelectrics[J]. Ferroelectrics, 1994, 162: 665–685.

[2] NAN C W, BICHURIN M I, DONG S X, et al. Multiferroic magnetoelectric composites: Historical perspective, status, and future directions[J]. J Appl Phys, 2008, 103(3): 031101.

[3] ASTROV D A. Magnetoelectric effect in chromium oxide[J]. Sov Phys JETP, 1960, 11: 708–710.

[4] FOLEN V G, RADO G T, STALDER E W. Anisotropy of the magnetoelectric effect in Cr2O3[J]. Phys Rev Lett, 1961, 6(11): 607–608.

[5] GOTO T, KIMURA T, LAWES G, et al. Ferroelectricity and giant magnetocapacitance in perovskite rare-earth manganites[J]. Phys Rev Lett, 2004, 92(25): 257201–257204.

[6] RAO C N R, MAHESH R, RAYCHAUDHURI A K, et al. Giant magnetoresistance, charge ordering and other novel properties of perovskite manganates[J]. J Phys Chem Solids, 1998, 59(4): 487–501.

[7] 聂军武. CoFe2O4–BaTiO3磁电复合材料的制备及性能研究[D]. 南京: 南京航空航天大学. 2009.

NIE Junwu. Preparation and performance study of CoFe2O4–BaTiO3 magnetoelectric composite materials[in Chinese, dissertation]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2009.

[8] CHI Z H, JIN C Q. Recent advances in single-phase magnetoelectric multiferroic[J]. Prog Phys, 2007, 27(2): 225–238.

[9] 林元华, 姜庆辉, 何泓材, 等. 多铁性氧化物基磁电材料的制备及性能[J]. 硅酸盐学报, 2007, 35(S1): 10–21.

LIN Yuanhua, JIANG Qinghui, HE Hongcai, et al. J Chin Ceram Soc, 2007, 35(S1): 10–21.

[10] PITHAN C, HENNINGS D,WASER R. Progress in the synthesis of nanocrystalline BaTiO3 powders for MLCC[J]. Internl J Appl Ceram Technol, 2005, 2(1): 1–14.

[11] 李东风, 贾振斌, 魏雨. 尖晶石型软磁铁氧体纳米材料的制备研究进展[J]. 电子元件与材料, 2003, 22(6): 37–40.

LI Dongfeng, JIA Zhenbin, WEI Yu. Electron Component Mater (in Chinese), 2003, 22(6): 37–40.

[12] RYU J, PRIYA S, UCHINO K, et al. Magnetoelectric effect in composites of magnetostrictive and piezoelectric materials[J]. J Electroceram, 2002, 8(2): 107–119.

[13] MA J, HU J M, LI Z, et al. Recent progress in multiferroic magnetoelectric composites: from bulk to thin films[J]. Adv Mater, 2011, 23(9): 1062–1087.

[14] BOOMGAARD J VAN DEN, RUN A M J G VAN, SUCHTELEN J VAN. Piezoelectric- piezomagnetic composites with magnetoelectric effect[J]. Ferroelectrics. 1976, 14(1): 727–728.

[15] 郭瑞, 汪长安, 杨安坤, 等. 微量Al3+掺杂对钴铁氧体结构与磁学性能的影响[S]. 稀有金属材料与工程, 2011, 40(S1): 379–382.

GUO R, WANG Chang’an, YANG Ankun, et al. Rare Metal Mater Eng (in Chinese), 2011, 40(S1): 379–382.

[16] 岳振星, 李龙土, 周济, 等. 多层复合BZN电介质/Ni–Zn–Cu铁氧体的共烧行为[J]. 硅酸盐学报. 1999, 27(6): 709–713.

YUE Zhengxing, LI Longtu, ZHOU Ji, et al. J Chin Ceram Soc, 1999, 27(6): 709–713.

[17] VALENCIA S, CRASSOUS A, BOCHER L, et al. Interface-induced room-temperature multiferroicity in BaTiO3[J]. Nat Mater, 2011, 10(10): 753–758.

服务与反馈：

【文章下载】【加入收藏】