Dielectric and magnetoelectric characterization of CoFe2O4/Ba0.55Sr0.25Ca0.2Nb2O6 composites

被引：42

作者：

Tang, YH ^{[1
]}

Chen, XM ^{[1
]}

Li, YJ ^{[1
]}

Zheng, XH ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2005年 / 116卷 / 02期

基金：

中国国家自然科学基金;

关键词：

magnetoelectric; piezoelectric; magnetostrictive; dielectric properties; composite;

D O I：

10.1016/j.mseb.2004.09.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

(1-x)CoFe2O4/xBa(0.55)Sr(0.25)Ca(0.2)Nb(2)O(6) magnetoelectric (ME) composites were prepared and characterized. Co-presence of two end-members was confirmed by SEM and X-ray diffraction analysis. A very high dielectric constant was obtained at low frequencies and an interesting temperature dependence of dielectric constant was observed in the present composite ceramics. All composites after post-densification annealing in oxygen could be electrically and magnetically poled to exhibit significant magnetoelectric effect. The ME effect of the composites was greatly dependent on the frequency of ac magnetic field. With increasing frequency, the magnetoelectric coefficient dE/dH increased firstly and then decreased. dE/dH also depended on the dc bias magnetic field. The highest dE/dH value of 9.51 mV/cm/Oe was observed in 0.2CoFe(2)O(4)/0.8Ba(0.55)Sr(0.25)Ca(0.2)Nb(2)O(6) composites under 1 kOe and at 90 kHz. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：150 / 155

页数：6

共 15 条

[1]

BOOMGAARD JV, 1978, J MATER SCI, V13, P1538, DOI DOI 10.1007/BF00553210

[2] Coupling between the ferroelectric and antiferromagnetic orders in YMnO3 [J].

Huang, ZJ ;

Cao, Y ;

Sun, YY ;

Xue, YY ;

Chu, CW .

PHYSICAL REVIEW B, 1997, 56 (05) :2623-2626

[3] Magnetoelectric properties of LiCoPO4 and LiNiPO4 [J].

Kornev, I ;

Bichurin, M ;

Rivera, JP ;

Gentil, S ;

Schmid, H ;

Jansen, AGM ;

Wyder, P .

PHYSICAL REVIEW B, 2000, 62 (18) :12247-12253

[4] Dielectric behaviour and magnetoelectric effect in copper-cobalt ferrite plus barium lead titanate composites [J].

Kothale, MB ;

Patankar, KK ;

Kadam, SL ;

Mathe, VL ;

Rao, AV ;

Chougule, BK .

MATERIALS CHEMISTRY AND PHYSICS, 2003, 77 (03) :691-696

[5] Investigation of the magnetoelectric effect in BiFeO3-BaTiO3 solid solutions [J].

Kumar, MM ;

Srinivas, A ;

Kumar, GS ;

Suryanarayana, SV .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1999, 11 (41) :8131-8139

[6] Magnetoelectric behavior in in situ grown piezoelectric and piezomagnetic composite-phase system [J].

Mazumder, S ;

Battacharyya, GS .

MATERIALS RESEARCH BULLETIN, 2003, 38 (02) :303-310

[7] AC conductivity and magnetoelectric effect in MnFe1.8Cr0.2O4-BaTiO3 composites [J].

Patankar, KK ;

Dombale, PD ;

Mathe, VL ;

Patil, SA ;

Patil, RN .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2001, 87 (01) :53-58

[8] Dielectric behaviour and magnetoelectric effect in CuFe2O4-Ba0.8Pb0.2TiO3 composites [J].

Patankar, KK ;

Mathe, VL ;

Mahajan, RP ;

Patil, SA ;

Reddy, RM ;

SivaKumar, KV .

MATERIALS CHEMISTRY AND PHYSICS, 2001, 72 (01) :23-29

[9] LINEAR AND QUADRATIC MAGNETOELECTRIC (ME) EFFECT IN NI-CL BORACITE [J].

RIVERA, JP ;

SCHMID, H .

JOURNAL OF APPLIED PHYSICS, 1991, 70 (10) :6410-6412

[10] Magnetoelectric effect in composites of magnetostrictive and piezoelectric materials [J].

Ryu, J ;

Priya, S ;

Uchino, K ;

Kim, HE .

JOURNAL OF ELECTROCERAMICS, 2002, 8 (02) :107-119

← 1 2 →