Configuration of the uncompensated moments at the FM/AFM interface with a NM spacer

被引:11
|
作者
Liu, Y. [1 ]
Jin, C. [1 ]
Fu, Y. Q. [1 ]
Teng, J. [1 ]
Li, M. H. [1 ]
Liu, Z. Y. [2 ]
Yu, G. H. [1 ]
机构
[1] Univ Sci & Technol Beijing, Dept Mat Phys & Chem, Beijing 100083, Peoples R China
[2] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China
关键词
D O I
10.1088/0022-3727/41/20/205006
中图分类号
O59 [应用物理学];
学科分类号
摘要
The pinned uncompensated moments are believed to play the key role in forming the exchange bias at the FM/AFM interface. However, most of the uncompensated moments are reversible under the dragging torque from the FM layer. We produced a ruined AFM surface by inserting and doping Pt at the FM/FeMn interface and found that the ruined AFM surface is a source of extra uncompensated moments. The configuration of the uncompensated moments changes considerably with the distance between the Pt/FeMn interface and the FM surface. The whole amount and pinned fraction of the uncompensated moments in the samples with the proper spacer thickness are simultaneously enriched.
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页数:4
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