Mirroring the dynamic magnetic behavior of magnetostrictive Co/(Ag,Cu,Ta) multilayers grown onto rigid and flexible substrates

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:393

Article

Agra, K.¹  Della Pace, R. D.^2,3  Dorneles, L. S.³  Bohn, F.¹  Correa, M. A.¹ 

[1] Univ Fed Rio Grande do Norte, Dept Fis, BR-59078900 Natal, RN, Brazil

[2] Univ Fed Santa Catarina, Dept Fis, BR-88040900 Florianopolis, SC, Brazil

[3] Univ Fed Santa Maria, Dept Fis, BR-97105900 Santa Maria, RS, Brazil

关键词: Magnetization dynamics;    Magnetoimpedance effect;    Multilayers;    Flexible substrates;   

DOI  :  10.1016/j.jmmm.2015.06.037

来源: Elsevier

【 摘 要 】

We investigate the magnetoimpedance effect in a wide frequency range in magnetostrictive Col(Ag,Cu, Ta) multilayers grown onto rigid and flexible substrates. We observe a direct correlation between structural and quasi-static magnetic properties and the magnetoimpedance effect, since they are directly dependent on the nature of the spacer material. Moreover, we verify that all these properties are insensitive to the kind of employed substrate. We compare the magnetoimpedance results measured for multilayers in rigid and flexible substrates and discuss them in terms of different mechanisms that govern the impedances changes, magnetic anisotropy, structural character, and of numerical calculation results found in the literature. The fact that magnetostrictive multilayers can be reproduced in distinct kinds of substrates corresponds to an important advance for their applicability. The results place multilayers grown onto flexible substrates as attractive candidates for application as probe element in the development of Ml-based sensor devices. (C) 2015 Elsevier B.V. All rights reserved

【 授权许可】

Free