Suppression of interlayer segregation in spin-valve NiFe/Cu/NiFe/FeMn multilayers

被引：0
|
作者：
G.H. Yu
F.W. Zhu
M.H. Li
H.W. Jiang
W.Y. Lai
机构：
[1] University of Science and Technology Beijing,Department of Materials Physics
[2] Chinese Academy of Sciences,Institute of Physics
来源：
Applied Physics A | 2004年 / 78卷
关键词：
Exchange Coupling; Spin Valve; Entire Energy Range; NiFe Layer; Insertion Layer;
D O I：
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中图分类号：
学科分类号：
摘要：
Experimental results show that Cu atoms can float out to or segregate to the NiFe/FeMn interface for Ta/NiFe/Cu/NiFe/FeMn/Ta spin-valve multilayers, which results in a drop of the exchange-coupling field (Hex) of NiFe/FeMn in the spin-valve multilayers. However, when a small amount of Bi atoms is deposited between the Cu and the pinned NiFe layers, Cu segregation to the NiFe/FeMn interface can be suppressed. At the same time, Hex of NiFe/FeMn in the spin-valve multilayers with a Bi interfacial layer can be effectively increased.
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页码：1229 / 1233
页数：4
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