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Magnetic properties and structural transitions of fluorite-related rare earth osmates Ln3OsO7 (Ln=Pr, Tb)
Title: | Magnetic properties and structural transitions of fluorite-related rare earth osmates Ln3OsO7 (Ln=Pr, Tb) |
Authors: | Hinatsu, Yukio Browse this author →KAKEN DB | Doi, Yoshihiro Browse this author →KAKEN DB |
Keywords: | Magnetic properties | Rare earth | Oxides | Osmium | Magnetic susceptibility | Structural phase transition |
Issue Date: | Feb-2013 |
Publisher: | Elsevier |
Journal Title: | Journal of Solid State Chemistry |
Volume: | 198 |
Start Page: | 176 |
End Page: | 185 |
Publisher DOI: | 10.1016/j.jssc.2012.09.039 |
Abstract: | Ternary rare-earth osmates Ln3OsO7 (Ln=Pr, Tb) have been prepared. They crystallize in an orthorhombic superstructure of cubic fluorite with space group Cmcm. Both of these compounds undergo a structural phase transition at 130 K (Ln=Pr) and 580 K (Ln=Tb). These compounds show complex magnetic behavior at low temperatures. Pr3OsO7 exhibits magnetic transitions at 8 and 73 K, and Tb3OsO7 magnetically orders at 8 and 60 K. The Os moments become one-dimensionally ordered, and when the temperature is furthermore decreased, it provokes the ordering in the Ln3+ sublattice that simultaneously becomes three-dimensionally ordered with the Os sublattice. |
Type: | article (author version) |
URI: | http://hdl.handle.net/2115/52119 |
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)
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Submitter: 日夏 幸雄
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