Analysis of the weak coupling of the IrMn/Co/Ru/NiFe structures by ferromagnetic resonance

被引：12

作者：

Alayo, W. ^{[1
]}

Sousa, M. A. ^{[2
]}

Pelegrini, F. ^{[2
]}

Baggio-Saitovitch, E. ^{[1
]}

机构：

[1] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, Brazil

[2] Univ Fed Goias, Inst Fis, BR-74001970 Goiania, Go, Brazil

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 109卷 / 08期

关键词：

Ruthenium - Ferromagnetism - Ferromagnetic materials - Ferromagnetic resonance - Cobalt - Manganese alloys - Iron alloys;

D O I：

10.1063/1.3569690

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The Ir20Mn80/Co/Ru/Ni81Fe19 spin valve structures have been produced by sputtering deposition and analyzed by ferromagnetic resonance. Two well resolved modes are identified in the FMR spectra as the resonance of the Co and NiFe layers. The in-plane angular dependence of the resonance peaks for the NiFe layer present a small asymmetry, which is attributed to the interlayer exchange interaction between ferromagnetic layers across the nonmagnetic spacer. The data were analyzed considering the exchange bias at the IrMn/Co interface and the indirect coupling between Co and NiFe. The in-plane angular dependence of the resonance fields of both Co and NiFe layers present an upward (downward) shift for antiferromagnetic (ferromagnetic) coupling with respect to a system with no interlayer coupling. (C) 2011 American Institute of Physics. [doi:10.1063/1.3569690]

引用

页数：5

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