Exchange-bias effect in Fe/Cr(211) double superlattice structures

被引：31

作者：

Jiang, JS ^{[1
]}

Felcher, GP ^{[1
]}

Inomata, A ^{[1
]}

Goyette, R ^{[1
]}

Nelson, C ^{[1
]}

Bader, SD ^{[1
]}

机构：

[1] Argonne Natl Lab, Argonne, IL 60439 USA

来源：

PHYSICAL REVIEW B | 2000年 / 61卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.61.9653

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Shifted hysteresis loops characteristic of the exchange-bias effect between a ferromagnet (F) and an antiferromagnet (AF) are demonstrated in "double-superlattice" structures. Utilizing the well-established oscillatory interlayer exchange coupling in Fe/Cr, we have constructed [Fe/Cr](AF)/Cr/[Fe/Cr](F) double superlattices where Fe/Cr superlattices with appropriate Cr-spacer thickness represent the F and the AF. The double superlattices are (211)-oriented epitaxial films sputter grown on single-crystal MgO(110) substrates. The AF/F interface is coherent compared to conventional exchange-bias interfaces consisting of dissimilar AF and F phases. Magnetization results show that AF/F exchange coupling affects the nucleation of reverse magnetic domains, and that the magnitude of the exchange-bias field is given directly by the classic formula for collinear spin structures. The collinear spin distribution is confirmed by polarized neutron reflectivity.

引用

页码：9653 / 9656

页数：4

共 28 条

[1] EXCHANGE ANISOTROPY AND STRAIN INTERACTIONS IN NI-NIO SYSTEM [J].