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Pt Thickness Dependence of Oscillatory Interlayer Exchange Coupling in [CoFe/Pt/CoFe]/IrMn Multilayers with Perpendicular Anisotropy

Authors
이상석최종구김선욱황도근이장로
Issue Date
Jun-2005
Publisher
한국자기학회
Keywords
interlayer exchange coupling (IEC); perpendicular anisotropy; nonmagnetic metallic Pt layer; antiferromagnetic IrMn layer
Citation
Journal of Magnetics, v.10, no.2, pp 44 - 47
Pages
4
Journal Title
Journal of Magnetics
Volume
10
Number
2
Start Page
44
End Page
47
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/57692
DOI
10.4283/JMAG.2005.10.2.044
ISSN
1226-1750
2233-6656
Abstract
The oscillatory interlayer exchange coupling (IEC) has been shown in pinned [CoFe/Pt(tPt)/CoFe]/IrMn multilayers with perpendicular anisotropy. The period of oscillation corresponds to about 2 monolayers of Pt. The oscillatory behavior of IEC depending on the nonmagnetic metallic Pt thickness is thought to be related the antiferromagnetic ordering induced by IrMn layer. Oscillatory IEC as function of insulating NiO thickness has been observed in [Pt/CoFe]4/NiO(tNiO)/[CoFe/Pt]4multilayers. The effect of N (number of bilayer repeats) upon the magnetic property of [Pt/CoFe]N/IrMn is also studied.
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