论文标题
质量和高熵圆形cantor-wu合金的散装和元素特异性磁性
Bulk and element specific magnetism of the medium and high entropy Cantor-Wu alloys
论文作者
论文摘要
在一组培养基（Nifeco和Nifecocr）以及高（Nifecocrpd和Nifecocrmn）熵cantor-cantor-wu-yloys上，在一组培养基（Nifeco和Nifecocr）上进行了磁综合散射，X射线磁圆形二分法光谱和块状磁力测量。由磁综合散射确定的大型自旋动量密度非常各向同性，这是通过电子准粒子散射对电子结构涂抹的结果。对于每种合金中的每个元件，都观察到非零的X射线磁圆二色性信号，这些元件表明大多数人群的差异和少数旋转状态表示有限的磁矩。当CR包含在实心溶液中时，CR旋转矩与总磁矩明确是对抗平行的，而对于MN来说，观察到消失的小磁矩，尽管计算表明很大。在实验体积和表面磁矩之间观察到一些显着的差异。尽管缺乏定量一致，但特定元素的表面磁矩似乎在定性上是合理的。
Magnetic Compton scattering, x-ray magnetic circular dichroism spectroscopy and bulk magnetometry measurements are performed on a set of medium (NiFeCo and NiFeCoCr) and high (NiFeCoCrPd and NiFeCoCrMn) entropy Cantor-Wu alloys. The bulk spin momentum densities determined by magnetic Compton scattering are remarkably isotropic, and this is a consequence of the smearing of the electronic structure by disorder scattering of the electron quasiparticles. Non-zero x-ray magnetic circular dichroism signals are observed for every element in every alloy indicating differences in the populations of the majority and minority spin states implying finite magnetic moments. When Cr is included in the solid solution, the Cr spin moment is unambiguously antiparallel to the total magnetic moment, while a vanishingly small magnetic moment is observed for Mn, despite calculations indicating a large moment. Some significant discrepancies are observed between the experimental bulk and surface magnetic moments. Despite the lack of quantitative agreement, the element specific surface magnetic moments seem to be qualitatively reasonable.
