Magnetic anisotropies of Fen/Vm(001) superlattices determined by Ferromagnetic Resonance

被引：11

作者：

Anisimov, AN

Platow, W

Poulopoulos, P

Farle, M

Baberschke, K

Isberg, P

Granberg, P

Wappling, R

机构：

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

[2] Univ Uppsala, Dept Phys, S-75121 Uppsala, Sweden

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1998年 / 34卷 / 04期

关键词：

coherency strains; ferromagnetic resonance; magnetic anisotropy; superlattices;

D O I：

10.1109/20.706296

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The temperature-dependent magnetic anisotropies of Fe-n/V-m(001) superlattices on MgO(001) were determined by Ferromagnetic Resonance (FMR). The re-layer thickness n ranges between 2 and 4 atomic layers. The shape anisotropy dominates, and the easy-axis of the magnetization of the samples is always in the film plane. The second-order out-of-plane magnetic anisotropy is mainly determined by magnetoelastic effects due to the in-plane lattice expansion of the re. The fourth order in-plane anisotropy presents a strong temperature dependence as a result of the competition between a volume part favoring the Fe-[100] and a surface part favoring the Fe-[110] in-plane direction. A very small step-induced in-plane uniaxial anisotropy reveals the existence of very-large atomically-flat terraces. This information, in combination with the observation of very narrow FMR-linewidths, indicates the excellent structural quality of our samples.

引用

页码：873 / 875

页数：3

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