Stabilization of Antiferromagnetic Order in FeO Nanolayers

被引：33

作者：

Couet, S. ^{[1
,2
,4
]}

Schlage, K. ^{[1
]}

Rueffer, R. ^{[3
]}

Stankov, S. ^{[3
]}

Diederich, Th. ^{[1
]}

Laenens, B. ^{[2
,4
]}

Roehlsberger, R. ^{[1
]}

机构：

[1] DESY, D-22603 Hamburg, Germany

[2] Katholieke Univ Leuven, Inst Kern Stralingsfys, B-3001 Leuven, Belgium

[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[4] INPAC, B-3001 Louvain, Belgium

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 09期

关键词：

EXCHANGE BIAS; SUPERLATTICES;

D O I：

10.1103/PhysRevLett.103.097201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the evolution of the magnetic state of a nanometer thick antiferromagnetic (AFM) FeO layer during its formation using nuclear resonant scattering of synchrotron radiation. In contact to ferromagnetic Fe, the FeO layer does not show magnetic order at room temperature (RT). Once embedded between two Fe layers, magnetic coupling to the adjacent ferromagnets leads to a drastic increase of the Neacuteel temperature far above RT, while the blocking temperature remains below 30 K. The presented results evidence the role that the ferromagnetic surrounding plays in modifying the magnetic state of ultrathin AFM layers.

引用

页数：4

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