论文标题
重新研究（Fe $ _ {1-x} $ co $ _x $）$ _ 2 $ B合金和丝带的结晶行为的内在磁性特性的重新研究
Reinvestigation of the intrinsic magnetic properties of (Fe$_{1-x}$Co$_x$)$_2$B alloys and crystallization behavior of ribbons
论文作者
论文摘要
提出了来自（Fe $ _ {1-X} $ CO $ _X $）$ _ 2 $ B合金的单晶的磁各向异性的新确定。使用标准的Callen-Callen理论讨论了各向异性常数的异常温度依赖性，这被证明不足以解释实验结果。一项更具体的研究使用第一原理计算，具有无效的力矩方法，可以对实验数据进行更一致的解释。由于具有$ x = 0.3-0.35 $的合金的固有性能对于永久磁铁应用有望，因此描述了对外部特性的初步研究，特别是用Cu，Al和Ti添加的熔体旋转丝带结晶。在该系统中，先前尝试开发重要的滞后的尝试并未成功。我们的融化实验表明该系统显示快速结晶。
New determination of the magnetic anisotropy from single crystals of (Fe$_{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.
