Metastable magnetic behaviour in UFe4Al8

Tokushin Ri, Y. Shiokawa

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Experimental results of ac susceptibility, dc magnetization, magnetic relaxation, and specific heat measurements on a well annealed polycrystalline UFe4Al8 sample establish that this compound is a long-range magnetic exchange interaction-dominated ferromagnet (Curie temperature TC = 138 K) with strong magnetic anisotropy. The typical metastable magnetic characteristics the irreversibility of the temperature dependence of the magnetization and the long-time magnetic relaxation behaviour at low temperatures - mainly result from domain wall pinning effects. The downshift of the ac susceptibility peak position with increasing frequency suggests that the effect of the spin-glass state, if it exists at all, is rather weak in this system.

Original languageEnglish
JournalJournal of Physics Condensed Matter
Volume15
Issue number28
DOIs
Publication statusPublished - 2003 Jul 23

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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