Magnetic proximity effects in antiferromagnet/ferromagnet bilayers: The impact on the Neel temperature

被引：82

作者：

Lenz, K. ^{[1
]}

Zander, S. ^{[1
]}

Kuch, W. ^{[1
]}

机构：

[1] Free Univ Berlin, Inst Expt Phys, D-14195 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.98.237201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a study of the ordering temperature of an ultrathin antiferromagnetic film in the proximity of a ferromagnetic layer. The Neel temperature of a single-crystalline antiferromagnetic Fe(x)Mn(1-x) film on Cu(001) in contact with a ferromagnetic Ni layer was monitored by the discontinuity in the coercivity as a function of temperature by magneto-optical Kerr effect measurements. It decreases by up to 60 K if the magnetization axis of the ferromagnet is switched from out of plane to in plane by deposition of a Co overlayer. These results give clear evidence for a magnetic proximity effect in which the ferromagnetic layer substantially influences the ordering temperature of the antiferromagnetic layer.

引用

页数：4

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