Driving mechanism for magnetoelectric effect in CoFe2O4-BaTiO3 multiferroic composite

被引：27
|
作者：
Duong, Giap V.
Groessinger, R.
Turtelli, R. Sato
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 | 2007年 / 310卷 / 02期
基金：
奥地利科学基金会;
关键词：
magnetoelectric effect; multiferroic composite; driving mechanism; barium titanate; cobalt ferrite;
D O I：
10.1016/j.jmmm.2006.10.333
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The magnetoelectric effect in the CoFe2O4-BaTiO3 core-shell structure composite prepared by wet chemical method occurs mainly due to a coupling between the magnetostrictive and piezostrictive phases. The driving mechanism is attributed to the mechanical coupling through the magnetostriction of the magnetostrictive constituent. The ME coefficient is found to be proportional to an efficiency factor k(o) and a coupling coefficient k, defined as k = lambda partial derivative lambda/partial derivative H, where lambda is the linear magnetostriction. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：1157 / 1159
页数：3
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