| タイトル |
-
en
High-temperature X-ray diffraction measurements of fluorite-related rare earth antimonates Ln(3)SbO(7) (Ln = Nd, Tb) and their magnetic properties
|
| 作成者 |
|
| アクセス権 |
open access |
| 権利情報 |
-
en
(C) 2014 Elsevier Inc. All rights reserved.
|
| 主題 |
-
Other
en
Magnetic properties
-
Other
en
Rare earth
-
Other
en
Oxides
-
Other
en
Specific heat
-
Other
en
Defect-fluorite
-
NDC
430
|
| 内容注記 |
-
Abstract
en
Ternary rare-earth antimonates Ln(3)SbO(7) (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; Ccmm for Ln=Sm-Dy), in which Ln(3+) ions occupy two different crystallographic sites (the 8-coordinated and 7-coordinated). For Ln=Nd, two phases with the Cmcm and Cam space groups coexist at room temperature. When the temperature was increased, the Nd3SbO7 compound transformed into a single phase with the space group Cmcm. Through magnetic susceptibility measurements, an antiferromagnetic transition was observed at 3.0 K (Ln=Nd) and 7.8 K (Ln=Tb). Analysis of the magnetic specific heat for Tb3SbO7 indicates that the 8-coordinated Tb ions magnetically orders at 7.8 K, and with furthermore decreasing temperature, the 7-coordinated Tb ions shows antiferromagnetic ordering at 3.0 K.
|
| 出版者 |
en
Elsevier
|
| 日付 |
|
| 言語 |
|
| 資源タイプ |
journal article |
| 出版タイプ |
AM |
| 資源識別子 |
HDL
http://hdl.handle.net/2115/56856
|
| 関連 |
-
isVersionOf
DOI
https://doi.org/10.1016/j.jssc.2014.05.005
|
| 収録誌情報 |
-
-
en
Journal of Solid State Chemistry
-
巻217
開始ページ16
終了ページ21
|
| ファイル |
|
| コンテンツ更新日時 |
2023-07-26 |
