PERPENDICULAR ANISOTROPY AND ANTIFERROMAGNETIC COUPLING IN CO/RU STRAINED SUPERLATTICES

被引：82

作者：

OUNADJELA, K ^{[1
]}

MULLER, D ^{[1
]}

DINIA, A ^{[1
]}

ARBAOUI, A ^{[1
]}

PANISSOD, P ^{[1
]}

SURAN, G ^{[1
]}

机构：

[1] CNRS,MAGNETISME LAB,F-92195 MEUDON,FRANCE

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.45.7768

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Despite the large lattice mismatch (congruent-to 8%), we demonstrate the growth of epitaxially ordered Co/Ru superlattices consisting of hcp (0001) Co and Ru sublayers. For small Ru interlayer thickness, a large antiferromagnetic exchange coupling between the Co sublayers is observed that influences strongly the magnetization process, as the magnetization within Co sublayers can no longer be considered to be fully locked ferromagnetically. For small Co and Ru thicknesses, the magnetization is oriented along the film normal, while the adjacent Co layers are strongly coupled antiferromagnetically. For this peculiar magnetic structure, a first-order spin-flop transition from an antiferromagnetic state to a ferromagnetic canted state is observed and clearly revealed by use of a ferromagnetic-resonance technique.

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页码：7768 / 7771

页数：4

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