Interlayer segregation in magnetic multilayers and its influence on exchange coupling
Interlayer segregation in magnetic multilayers and its influence on exchange coupling
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DOI：
10.1063/1.1533121
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发表时间：
2003-01
影响因子：
4
通讯作者：
G. Yu;M. H. Li;F. Zhu;Hua Jiang;W. Lai;C. Chai
中科院分区：
文献类型：
--
作者：
G. Yu;M. H. Li;F. Zhu;Hua Jiang;W. Lai;C. Chai
实验结果表明，Ta/NiFe/FeMn/Ta多层膜的NiFe/FeMn交换耦合场（H-ex）高于自旋阀多层膜Ta/NiFe/Cu/NiFe/FeMn/Ta。X射线光电子能谱（XPS）分析表明，在Ta/NiFe/Cu/NiFe/FeMn/Ta多层膜中，Cu原子偏聚在NiFe/FeMn界面。在研究Ta/X（X=Bi，Pb，Ag，In）/NiFe/FeMn多层膜时，我们还发现X原子偏聚到NiFe/FeMn界面，导致H-ex降低。而在Ta/NiFe/Cu/NiFe/FeMn/Ta多层膜中，少量的Bi、Pb等沉积在Cu和NiFe钉扎层之间，则会增加H-ex。(C)2003年，美国物理学会。
Experimental results show that the exchange coupling field (H-ex) of NiFe/FeMn for Ta/NiFe/FeMn/Ta multilayers is higher than that for spin-valve multilayers Ta/NiFe/Cu/NiFe/FeMn/Ta. X-ray photoelectron spectroscopy shows that Cu atoms segregate to the NiFe/FeMn interface for Ta/NiFe/Cu/NiFe/FeMn/Ta multilayers. While studying Ta/X(X=Bi,Pb,Ag,In)/NiFe/FeMn multilayers, we also find that X atoms segregate to the NiFe/FeMn interface, which results in a decrease of the H-ex. However, a small amount of Bi, Pb, etc. deposited between Cu and pinned NiFe layer for Ta/NiFe/Cu/NiFe/FeMn/Ta multilayers can increase H-ex. (C) 2003 American Institute of Physics.