Extrinsic control of the exchange bias

被引:31
作者
Hochstrat, A [1 ]
Binek, C [1 ]
Chen, X [1 ]
Kleemann, W [1 ]
机构
[1] Univ Duisburg Gesamthsch, Lab Angewandte Phys, Inst Phys, D-47048 Duisburg, Germany
关键词
magnetoelectric effect; exchange bias; thin films;
D O I
10.1016/j.jmmm.2003.12.344
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A new control mechanism for the exchange bias effect in magnetic heterostructures is proposed. It takes advantage of the magnetoelectric effect which takes place in the antiferromagnetic pinning layer. In contrast with the pioneering AC measurements of the magnetoelectric effect, we investigate the magnetic response of the prototypical magnetoelectric compound Cr2O3 oil static electric fields. The linear dependence of the magnetic moment on the applied axial electric field and the temperature dependence of the corresponding slopes all are measured by DC SQUID magnetometry. The contribution of the field-induced surface magnetization and its impact on the exchange bias effect is estimated. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:325 / 326
页数:2
相关论文
共 8 条
[1]   Exchange bias in Fe0.6Zn0.4F2/Fe heterostructures [J].
Binek, C ;
Chen, X ;
Hochstrat, A ;
Kleemann, W .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 240 (1-3) :257-260
[2]   Exchange bias in a generalized Meiklejohn-Bean approach [J].
Binek, C ;
Hochstrat, A ;
Kleemann, W .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2001, 234 (02) :353-358
[3]   ANISOTROPY OF MAGNETOELECTRIC EFFECT IN CR2O3 [J].
FOLEN, VJ ;
RADO, GT ;
STALDER, EW .
PHYSICAL REVIEW LETTERS, 1961, 6 (11) :607-&
[4]   Freezing field dependence of the exchange bias in uniaxial FeF2-CoPt heterosystems with perpendicular anisotropy [J].
Kagerer, B ;
Binek, C ;
Kleemann, W .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2000, 217 (1-3) :139-146
[5]   RANDOM-FIELD INDUCED ANTIFERROMAGNETIC, FERROELECTRIC AND STRUCTURAL DOMAIN STATES [J].
KLEEMANN, W .
INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 1993, 7 (13) :2469-2507
[6]   NEW MAGNETIC ANISOTROPY [J].
MEIKLEJOHN, WH ;
BEAN, CP .
PHYSICAL REVIEW, 1957, 105 (03) :904-913
[7]   Diluted antiferromagnets in exchange bias:: Proof of the domain state model [J].
Miltényi, P ;
Gierlings, M ;
Keller, J ;
Beschoten, B ;
Güntherodt, G ;
Nowak, U ;
Usadel, KD .
PHYSICAL REVIEW LETTERS, 2000, 84 (18) :4224-4227
[8]   MECHANISM OF MAGNETOELECTRIC EFFECT IN AN ANTIFERROMAGNET [J].
RADO, GT .
PHYSICAL REVIEW LETTERS, 1961, 6 (11) :609-&