Magnetic and neutron diffraction study on iridium(IV) perovskites Sr2LnIrO6 (Ln = Ce, Tb)

Daijitsu Harada, Makoto Wakeshima, Yukio Hinatsu, Kenji Ohoyama, Yasuo Yamaguchi

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Powder neutron diffraction measurements have been performed for two tetravalent iridium perovskites, Sr2CeIrO6 (TN = 21 K) and Sr2TbIrO6 (TN = 51 K). It is found that moments of Tb4+ in these ordered perovskites are stacked antiferromagnetically along the c-axis, and the magnetic structure is of type I. The ordered magnetic moment of Tb4+ is 4.96 μB at 28 K and 6.60 μB at 2 K. From magnetic susceptibility measurements on Sr2CexTb1-xIrO6, the antiferromagnetic transition temperatures decrease greatly with decreasing Tb4+ ion, which indicates that the pathway of such interactions must involve the Tb4+ ions.

Original languageEnglish
Pages (from-to)3229-3239
Number of pages11
JournalJournal of Physics Condensed Matter
Volume12
Issue number14
DOIs
Publication statusPublished - 2000 Apr 10

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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