Extended short-range ferromagnetic order with cluster-glass behavior in Dy2AuSi3

D. X. Li, S. Nimori, Tomoo Yamamura, K. Yubuta, K. Shirazaki, X. Zhao

研究成果: Article

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We present the results of ac and dc susceptibilities, high-field magnetization, magnetic relaxation and electrical resistivity measurements for a ternary intermetallic compound Dy2AuSi3 with a hexagonal phase dominant crystal structure derived from the AlB2-type. Both the ac and dc susceptibilities show a field and frequency dependent peak around TC ∼ 12.5 K, while evident irreversible magnetism and long-time magnetic relaxation behavior can be observed below TC. These metastable magnetic properties suggest that an extended short-range ferromagnetic order occurs near TC, i.e. the formation of ferromagnetic cluster state. This is further confirmed by the magnetization and electrical resistivity measurements and by a dynamic analysis of the ac susceptibility data. According to the extended short-range ferromagnetic order model, ferromagnetic clusters in Dy2AuSi3 could exist with larger geometric dimensions, interact magnetically with each other and result in the observed cluster-glass behavior at low temperatures.

元の言語English
ページ(範囲)558-561
ページ数4
ジャーナルJournal of Alloys and Compounds
488
発行部数2
DOI
出版物ステータスPublished - 2009 12 4

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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