Soft X-ray magnetic circular dichroism study of Al40Mn 25Fe15Ge20 decagonal quasicrystal

T. Nakamura, Y. Yokoyama, N. Kamakura, T. Matsushita, T. Hirono, T. Muro, K. Kobayashi

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

Magnetic properties of a spin-glass Al40Mn25Fe 15Ge20 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 L3-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 Al40Mn40Ge20 has also been investigated in comparison with the QC.

Original languageEnglish
Pages (from-to)251-254
Number of pages4
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume238
Issue number1-4
DOIs
Publication statusPublished - 2005 Aug
EventSynchrotron Radiation in Materials Science Proceedings of the 4th Conference on Synchrotron Radiation in Materials Science -
Duration: 2004 Aug 232004 Aug 25

Keywords

  • Approximant crystal
  • Element specific magnetic hysteresis
  • Magnetic circular dichroism
  • Quasicrystal
  • Soft X-ray

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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