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Magnetic interactions in rhenium-containing rare earth double perovskites Sr(2)LnReO(6) (Ln=rare earths)

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タイトル: Magnetic interactions in rhenium-containing rare earth double perovskites Sr(2)LnReO(6) (Ln=rare earths)
著者: Nishiyama, Atsuhide 著作を一覧する
Doi, Yoshihiro 著作を一覧する
Hinatsu, Yukio 著作を一覧する
キーワード: Magnetic properties
Perovskite
Rare earth
Rhenium
発行日: 2017年 4月
出版者: Elsevier
誌名: Journal of solid state chemistry
巻: 248
開始ページ: 134
終了ページ: 141
出版社 DOI: 10.1016/j.jssc.2017.02.006
抄録: The perovskite-type compounds containing both rare earth and rhenium Sr(2)LnReO(6) (Ln=Y, Tb-Lu) have been prepared. Powder X-ray diffraction measurements and Rietveld analysis show that Ln(3+) and Re5+ ions are structurally ordered at the B site of the perovskite SrBO3. Magnetic anomalies are found in their magnetic susceptibility and specific heat measurements at 2.6-20 K for Ln=Y, Tb, Dy, Yb, Lu compounds. They are due to magnetic interactions between Re5+ ions. The results of the magnetic hysteresis and remnant magnetization measurements for Sr2YReO6 and Sr2LuReO6 indicate that the antiferromagnetic interactions between Re5+ ions below transition temperatures have a weak ferromagnetic component. The analysis of the magnetic specific heat data for Sr2YbReO6 shows that both the Yb3+ and Re5+ ions magnetically order at 20 K. For the case of Sr2DyReO6, magnetic ordering of the Re5+ moments occurs at 93 K, and with decreasing temperature, the moments of Dy3+ ferromagnetically order at 5 K from the measurements of magnetic susceptibility and specific heat.
Rights: ©2017 This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/72495
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 日夏 幸雄

 

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