Dielectric, ferromagnetic and ferroelectric properties of the (1-x)Ba0.8Sr0.2TiO3-xCoFe2O4 multiferroic particulate ceramic composites

被引：48

作者：

Wang, Yean ^{[1
]}

Wang, Yunbo ^{[1
]}

Rao, Wei ^{[1
]}

Wang, Meng ^{[1
]}

Li, Gangxian ^{[1
]}

Li, Yubin ^{[1
]}

Gao, Junxiong ^{[1
]}

Zhou, Wenli ^{[1
]}

Yu, Jun ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Elect Sci & Technol, Wuhan 430074, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2012年 / 23卷 / 05期

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

MAGNETIC-PROPERTIES; BEHAVIOR; FERRITE;

D O I：

10.1007/s10854-011-0548-x

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The (1 - x)Ba0.8Sr0.2TiO3-xCoFe(2)O(4) ceramic composites (x = 0-1) were prepared by standard solid state reaction method. X-ray diffraction and SEM indicate the Ba0.8Sr0.2TiO3 (BST) phase and CoFe2O4 (CFO) phase coexist in the composites. The dielectric constant and dielectric loss for the composites were studied as a function of frequency (40 Hz-1 MHz) and temperature (30-600 A degrees C). Magnetic and ferroelectric tests show that the ceramic composites display ferromagnetic and ferroelectric properties simultaneously. The saturated polarization of the composites decrease with ferrite concentration increasing, while the remnant polarization of the composites increase with increasing ferrite concentration. The enhanced ferroelectricity of composites may be attributed to space charge contribution in the composites.

引用

页码：1064 / 1071

页数：8

共 24 条

[1] Dielectric, ferroelectric, magnetic, and magnetoelectric properties of multiferroic laminated composites [J].

Cai, N ;

Zhai, J ;

Nan, CW ;

Lin, Y ;

Shi, Z .

PHYSICAL REVIEW B, 2003, 68 (22)

[2] Ferromagnetic, ferroelectric and dielectric properties of Pb(Zr0.53Ti0.47)O3/CoFe2O4 multiferroic composite thick films [J].

Chen, W. ;

Wang, Z. H. ;

Zhu, W. ;

Tan, O. K. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2009, 42 (07)

[3] Dielectric and magnetoelectric characterization of CoFe2O4/Sr0.5Ba0.5Nb2O6 composites [J].

Chen, XM ;

Tang, YH ;

Chen, IW ;

Xu, ZC ;

Wu, SY .

JOURNAL OF APPLIED PHYSICS, 2004, 96 (11) :6520-6522

[4] Multiferroic and magnetoelectric materials [J].

Eerenstein, W. ;

Mathur, N. D. ;

Scott, J. F. .

NATURE, 2006, 442 (7104) :759-765

[5] Magnetoelectric composites of nickel ferrite and lead zirconnate titanate prepared by spark plasma sintering [J].

Jiang, Q. H. ;

Shen, Z. J. ;

Zhou, J. P. ;

Shi, Z. ;

Nan, Ce-Wen .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2007, 27 (01) :279-284

[6] Magnetoelectric effect and complex impedance analysis of (x)CoFe2O4 + (1-x)Ba0.8Sr0.2TiO3 multiferroics [J].

Kanamadi, C. M. ;

Kim, J. S. ;

Yang, H. K. ;

Moon, B. K. ;

Choi, B. C. ;

Jeong, J. H. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 481 (1-2) :781-785

[7] Dielectric and magnetic properties of (x)CoFe2O4 + (1-x)Ba0.8Sr0.2TiO3 magnetoelectric composites [J].

Kanamadi, C. M. ;

Das, B. K. ;

Kim, Chang Woo ;

Kang, Dong In ;

Cha, Hyun Gil ;

Ji, Eun Sun ;

Jadhav, A. P. ;

Jun, Byeong-Eog ;

Jeong, Jung Hyun ;

Choi, Byung Chun ;

Chougule, B. K. ;

Kang, Young Soo .

MATERIALS CHEMISTRY AND PHYSICS, 2009, 116 (01) :6-10

[8] ON THE DISPERSION OF RESISTIVITY AND DIELECTRIC CONSTANT OF SOME SEMICONDUCTORS AT AUDIOFREQUENCIES [J].

KOOPS, CG .

PHYSICAL REVIEW, 1951, 83 (01) :121-124

[9]

MAXWELL JC, 1973, ELECT MAGNETISM

[10] MAGNETOELECTRIC EFFECT IN COMPOSITES OF PIEZOELECTRIC AND PIEZOMAGNETIC PHASES [J].

NAN, CW .

PHYSICAL REVIEW B, 1994, 50 (09) :6082-6088

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