Soft X-ray magnetic circular dichroism study of Al40Mn25Fe15Ge20 decagonal quasicrystal

✍ Scribed by T. Nakamura; Y. Yokoyama; N. Kamakura; T. Matsushita; T. Hirono; T. Muro; K. Kobayashi

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 142 KB
• Volume: 238
• Category: Article
• ISSN: 0168-583X
• DOI: 10.1016/j.nimb.2005.06.057

✦ Synopsis

Magnetic properties of a spin-glass Al 40 Mn 25 Fe 15 Ge 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 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 40 Mn 40 Ge 20 has also been investigated in comparison with the QC.