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Magnetic interactions in new fluorite-related rare earth oxides LnLn ' 2RuO7 (Ln, Ln ' = rare earths)

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Title: Magnetic interactions in new fluorite-related rare earth oxides LnLn ' 2RuO7 (Ln, Ln ' = rare earths)
Authors: Hinatsu, Yukio Browse this author →KAKEN DB
Doi, Yoshihiro Browse this author →KAKEN DB
Keywords: Magnetic properties
Rare earth
Ruthenium
Oxides
Specific heat
Issue Date: Jul-2016
Publisher: Elsevier
Journal Title: Journal of solid state chemistry
Volume: 239
Start Page: 214
End Page: 219
Publisher DOI: 10.1016/j.jssc.2016.04.033
Abstract: New fluorite-related quaternary rare earth oxides Pr2YRuO7 and La2TbRuO7 have been prepared. They crystallize in an orthorhombic superstructure of cubic fluorite with space group Cmcm. Through magnetic susceptibility and specific heat measurements, Pr2YRuO7 shows an anti ferromagnetic transition at 27 K, which is considerably lowered compared with that for Pr3RuO7. Analysis of the magnetic specific heat indicates that the magnetic behavior observed at 27 K for Pr2YRuO7 is predominantly due to the magnetic interactions between Ru ions, and that the interactions between the Pr3+ and Ru5+ ions are also important. La2TbRuO7 shows magnetic ordering at 9.0 K, which is ascribed to the magnetic ordering between Ru5+ ions from the analysis of the magnetic specific heat data.
Rights: © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
https://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article (author version)
URI: http://hdl.handle.net/2115/70882
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 日夏 幸雄

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