论文标题
磁铁中磁各向异性的空间分解：掺杂Fe16n2的应用
Spatial decomposition of magnetic anisotropy in magnets: application for doped Fe16N2
论文作者
论文摘要
我们提出了一种将固体中总相对论能量分解为原子质和原子间贡献的方案。该方法基于光速从相对论理论到无穷大的价值的变化（非依赖性极限）。作为该方法的说明，我们在COPT中磁各向异性能量（MAE）分解的自旋相互作用变化的情况下测试了这种分解。我们进一步研究了由BI，SB，CO和PT原子掺杂的α'-Fe16n2磁铁。已经发现，PT原子的添加可以使MAE高达五倍，而BI和SB取代的总MAE则两倍。使用提出的技术，我们证明了这些增强功能的空间分布。我们的研究还表明，SB，PT和CO取代可以通过实验合成。
We propose a scheme of decomposition of the total relativistic energy in solids to intra- and interatomic contributions. The method is based on a variation of the speed of light from its value in relativistic theory to infinity (a non-relativistic limit). As an illustration of the method, we tested such decomposition in the case of a spin-orbit interaction variation for decomposition of the magnetic anisotropy energy (MAE) in CoPt. We further studied the α''-Fe16N2 magnet doped by Bi, Sb, Co and Pt atoms. It has been found that the addition of Pt atoms can enhance the MAE by as large as five times while Bi and Sb substitutions double the total MAE. Using the proposed technique we demonstrate the spatial distribution of these enhancements. Our studies also suggest that Sb, Pt and Co substitutions could be synthesized by experiments.
