Soft X-ray magnetic circular dichroism study of Al40Mn25Fe15Ge20 decagonal quasicrystal
Soft X-ray magnetic circular dichroism study of Al40Mn25Fe15Ge20 decagonal quasicrystal
复制标题
Al40Mn25Fe15Ge20十方准晶的软X射线磁圆二色性研究
DOI：
10.1016/j.nimb.2005.06.057
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发表时间：
2005
影响因子：
1.3
通讯作者：
K. Kobayashi
中科院分区：
文献类型：
--
作者：
Tetsuya Nakamura;Y. Yokoyama;N. Kamakura;T. Matsushita;T. Hirono;T. Muro;K. Kobayashi
用软X射线磁性圆二色谱(MCD)研究了自旋玻璃Al{sub40}Mn{sub25}Fe{sub15}Ge{sub20}十方准晶(QC)的磁性。测量了元素特定磁滞回线在Mn和Fe L{sub3}边的磁滞回线随磁场强度的变化。在QC中，Mn和Fe的ESMH环有明显的差异，只有Mn环具有明显的类剩余磁化强度。ESMH的这一结果表明，在自旋玻璃QC中，Mn磁矩和Fe磁矩具有不同的磁粘性。还研究了一种铁磁性准晶Al{sub40}Mn{sub40}Ge{sub20}，并与QC进行了比较。
Magnetic properties of a spin-glass Al{sub 40}Mn{sub 25}Fe{sub 15}Ge{sub 20} decagonal quasicrystal (QC) have been studied by means of soft X-ray magnetic circular dichroism (MCD). Element specific magnetic hysteresis (ESMH) loops have been measured as magnetic field dependence of MCD intensity at the Mn and Fe L{sub 3}-edges. A significant difference has been found in the ESMH loops between Mn and Fe in the QC, where only the Mn loop has an obvious remanent-like magnetization. This result of ESMH has suggested that Mn and Fe magnetic moments have different magnetic viscosities in the spin-glass QC. A ferromagnetic approximant-crystalline Al{sub 40}Mn{sub 40}Ge{sub 20} has also been investigated in comparison with the QC.