Magnetoelectric properties of CoFe2O4-BaTiO3 core-shell structure composite studied by a magnetic pulse method

被引：24

作者：

Duong, Giap V. ^{[1
,2
]}

Turtelli, R. Sato ^{[1
]}

Groessinger, R. ^{[1
]}

机构：

[1] Vienna Univ Technol, Inst Solid State Phys, A-1040 Vienna, Austria

[2] Hanoi Univ Technol, Fac Chem Engn, Hanoi, Vietnam

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2010年 / 322卷 / 9-12期

关键词：

Magnetoelectric composite; Cobalt ferrite; Barium titanate; Magnetostriction; Piezoelectricity; Magnetoelectriceffect;

D O I：

10.1016/j.jmmm.2009.09.022

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new method using a magnetic pulse field in order to measure the ME effect of CoFe2O4-BaTiO3 core-shell structure composite has been developed. This new method combines advantages of both quasi-static and dynamic ones and allows quantifying the whole ME response of the materials. The maximum ME coefficient of this composite is 5.5 and 4.2 mV/cm Oe for longitudinal and transverse measurements, respectively. These values are bigger than those measured by the lock-in technique and can be attributed to the fact that the pulse field method determines the full magnetoelectric coefficient whereas the AC method determines only the part that corresponds to the amplitude of the AC field. Both pulse duration and field sweep rate dH/dt are found to affect the ME response of the composite. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1581 / 1584

页数：4

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