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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Large enhancement of magnetic moment in L1(0) ordered FePt thin films by Nd substitutional doping
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Large enhancement of magnetic moment in L1(0) ordered FePt thin films by Nd substitutional doping

机译：Nd替代掺杂大大增强L1（0）有序FePt薄膜中的磁矩

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摘要

We studied L1(0) ordered Fe50Pt50-xNdx alloy films, which showed a large enhancement (similar to 18.4% at room temperature and similar to 11.7% at 10 K) of magnetic moment with 6 atomic % of Nd. Analysis of the x-ray magnetic circular dichroism spectra at the Fe L-3,L-2 edges and Nd M-5,M-4 edges in Fe50Pt44Nd6 films indicated a significant contribution of the Nd orbital moment. The origin of the large enhancement of magnetic moment was attributed to the effect of ferromagnetic coupling of the total magnetic moments between Fe and Nd. Density functional theory based first principles calculations supported the experimental observations of increasing moment due to Nd substitution of Pt.
机译：我们研究了L1（0）有序的Fe50Pt50-xNdx合金薄膜，该薄膜具有6％的Nd磁矩（在室温下约为18.4％，在10 K下约为11.7％）。对Fe50Pt44Nd6薄膜中Fe L-3，L-2边缘和Nd M-5，M-4边缘的x射线圆二色性光谱的分析表明，Nd轨道矩的贡献很大。磁矩大幅度增强的根源归因于铁与钕之间总磁矩的铁磁耦合效应。基于密度泛函理论的第一性原理计算支持了由于Nd取代Pt而增加矩的实验观察。

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