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Magnetic properties and structural transitions of fluorite-related rare earth osmates Ln3OsO7 (Ln=Pr, Tb)

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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)

Submitter: 日夏 幸雄

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