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タイトル
  • en Magnetic properties of orthorhombic fluorite-related oxides Ln3SbO7 (Ln = rare earths)
作成者
    • en Ebisawa, Haruka
    • en Doi, Yoshihiro
アクセス権 open access
主題
  • Other en Magnetic properties
  • Other en Rare earths
  • Other en Oxides
  • Other en Magnetic susceptibility
  • Other en Specific heat
  • Other en Antiferromagnetic transition
  • NDC 431
内容注記
  • Abstract en Ternary rare earth antimonates Ln3SbO7 (Ln = rare earths) were prepared and their structures were determined by x-ray diffraction measurements. They crystallize in an orthorhombic superstructure of cubic fluorite (space group Cmcm for Ln = La, Pr, Nd; C-222_[1] for Ln = Nd～Lu), in which Ln3+ ions occupy two different crystallographic sites (the 8-coordinated and 7-coordinated sites). Their magnetic properties were characterized by magnetic susceptibility and specific heat measurements from 1.8 to 400 K. The Ln3SbO7 (Ln = Nd, Gd-Ho) compounds show an antiferromagnetic transition at 2.2～3.2 K. Sm3SbO7 and Eu3SbO7 show van Vleck paramagnetism. Measurements of the specific heat down to 0.4 K for Gd3SbO7 and the analysis of the magnetic specific heat indicate that the antiferromagnetic ordering of the 8-coordinated Gd ions occur at 2.6 K, and the 7-coordinated Gd ions order at a furthermore low temperature.
出版者 en Elsevier Inc.
日付
    Issued2009-07
言語
  • eng
資源タイプ journal article
出版タイプ AM
資源識別子 HDL http://hdl.handle.net/2115/38902
関連
  • isVersionOf DOI https://doi.org/10.1016/j.jssc.2009.04.015
収録誌情報
    • PISSN 0022-4596
      • en Journal of Solid State Chemistry
      • 巻182 号7 開始ページ1694 終了ページ1699
ファイル
コンテンツ更新日時 2023-07-26