（Fe $_{1-x}$ Co $_x$）$_2$ B合金内禀磁性及薄带晶化行为的再研究
Reinvestigation of the intrinsic magnetic properties of (Fe$_{1-x}$Co$_x$)$_2$B alloys and crystallization behavior of ribbons
摘要：
本文报道了（Fe $_{1-x}$ Co $_x$）$_2$ B合金单晶磁各向异性的新测定方法。用标准的Callen-Callen理论讨论了各向异性常数的反常温度依赖性，结果表明该理论不足以解释实验结果。使用第一性原理计算和无序矩方法的更具体的材料研究给出了更一致的实验数据的解释。由于与$x=0.3-0.35$的合金的内在性能是有前途的永磁体的应用，初始调查的外在性能进行了说明，特别是与Cu，Al和Ti添加的熔体旋转带的结晶。先前在该系统中开发显著滞后的尝试是不成功的。我们的熔体纺丝实验表明，该系统显示出快速结晶。
英文摘要：
New determination of the magnetic anisotropy from single crystals of (Fe$_{1-x}$Co$_x$)$_2$B alloys are presented. The anomalous temperature dependence of the anisotropy constant is discussed using the standard Callen-Callen theory, which is shown to be insufficient to explain the experimental results. A more material specific study using first-principles calculations with disordered moments approach gives a much more consistent interpretation of the experimental data. Since the intrinsic properties of the alloys with $x=0.3-0.35$ are promising for permanent magnets applications, initial investigation of the extrinsic properties are described, in particular the crystallization of melt spun ribbons with Cu, Al, and Ti additions. Previous attempts at developing a significant hysteresis have been unsuccessful in this system. Our melt-spinning experiment indicates that this system shows rapid crystallization.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
