Spin glass behavior in a decagonal quasicrystal Al-Mn-Fe-Ge system

A. Tobo, H. Onodera, Y. Yamaguchi, Y. Yokoyama, R. Note, A. Inoue

研究成果: Article査読

3 被引用数 (Scopus)

抄録

The magnetic behavior of a decagonal quasicrystal Al40Mn25Fe15Ge20 system has been investigated by Mössbauer spectroscopy, magnetization and AC susceptibility measurements. Magnetization measured at low fields as a function of temperature shows a cusp-like peak around 41 K. AC susceptibility also shows a sharp cusp, and the cusp shifts to a higher temperature as the frequency increases. These results strongly suggested that Al40Mn25Fe15Ge20 is a spin glass system with Tg = 41 K. From the temperature dependence of the Mössbauer spectrum, we observed the appearance of a hyperfine field below around 50 K. The temperature is a little higher than the cusp temperature, which is rather usual in spin glass systems.

本文言語English
ページ(範囲)27-31
ページ数5
ジャーナルHyperfine Interactions
133
1-4
DOI
出版ステータスPublished - 2001
外部発表はい

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 核物理学および高エネルギー物理学
  • 凝縮系物理学
  • 物理化学および理論化学

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