Magnetic anisotropy of NiO epitaxial thin films on Fe(001) -: art. no. 014410

被引：27

作者：

Finazzi, M

Portalupi, M

Brambilla, A

Duò, L

Ghiringhelli, G

Parmigiani, F

Zacchigna, M

Zangrando, M

Ciccacci, F

机构：

[1] Politecn Milan, Dipartimento Fis, INFM, I-20133 Milan, Italy

[2] UCSC, INFM, Dipartimento Matemat & Fis, I-25121 Brescia, Italy

[3] INFM, TASC, I-34012 Trieste, Italy

来源：

PHYSICAL REVIEW B | 2004年 / 69卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.69.014410

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic linear dichroism performed at the Ni L-2 absorption edge of thin NiO/Fe(001) films reveals in-plane magnetic anisotropy in the oxide layer. Moreover, the local magnetic moments of the nickel atoms show uniaxial anisotropy perpendicular to the magnetization of the Fe substrate. Such a behavior is radically different from that observed when Fe is grown on top of NiO(001), in which case the Fe and Ni moments tend to be collinear. The results are discussed with the help of a model accounting for exchange, dipolar, and magnetocrystalline interactions.

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页数：4

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