High field magnetization study and analysis of magnetic interactions in Dy<inf>2</inf>Fe<inf>17-x</inf>Ga<inf>x</inf> (x = 5-8) compounds

N. Sheloudko, A. Gilewski, Xiao lei Rao, V. Skumryev, J. S. Muoz

Research output: Contribution to journalArticleResearchpeer-review

2 Citations (Scopus)

Abstract

High field magnetization measurements (up to 38T) were carried out at 4.2 K on "free powder" samples from Dy2Fe17-xGax (x = 5-8) compounds. The data were used to evaluate the microscopic exchange parameter, JDyFe. Its value was also obtained by mean-field analysis of Curie temperatures, Tc, in agreement with the high-field data. The obtained results reveal an increase of JDyFe above x = 6 that can be correlated with the observed change in Tc vs. x for Dy2Fe17-xGax compounds and their counterparts with Y. © 2001 Published by Elsevier Science B.V.
Original languageEnglish
Pages (from-to)157-161
JournalJournal of Magnetism and Magnetic Materials
Volume231
DOIs
Publication statusPublished - 1 Jun 2001

Keywords

  • Exchange interaction parameters
  • Magnetic ordering temperature
  • Rare-earth transition-metal compound
  • Substitution effects

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