Enhanced interfacial magnetic coupling of Gd/Fe multilayers

被引：109
|
作者：
Haskel, D [1 ]
Srajer, G
Lang, JC
Pollmann, J
Nelson, CS
Jiang, JS
Bader, SD
机构：
[1] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA
[2] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA
来源：
PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 20期
关键词：
D O I：
10.1103/PhysRevLett.87.207201
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The spatial extent zeta (AFM) and strength J(AFM) of the antiferromagnetic (AFM) exchange coupling at buried Gd/Fe interfaces in ferrimagnetic [Gd(50 Angstrom )Fe(15, 35 Angstrom)](15) sputtered multilayers is obtained from combined x-ray resonance magnetic reflectivity and magnetic circular dichroism measurements. zeta (AFM), is 4.1(7) Angstrom or similar to1-2 interatomic distances in bulk Gd and Fe; J(AFM) is 1050(90) K, comparable to the ferromagnetic exchange in bulk Fe.
引用
收藏
页码：207201 / 1
页数：4
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