タイトル |
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Magnetic properties of EuLn2O4 (Ln = rare earths)
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作成者 |
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アクセス権 |
open access |
主題 |
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Other
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Magnetic properties
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Other
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Rare earths
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Other
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Oxides
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Other
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Antiferromagnetic interactions
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Other
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Magnetic susceptibility
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Other
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Mössbauer spectroscopy
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NDC
431
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内容注記 |
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Abstract
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Ternary rare earth oxides EuLn2O4 (Ln = Gd, Dy-Lu) were prepared. They crystallized in an orthorhombic CaFe2O4-type structure with space group Pnma. 151Eu Mössbauer spectroscopic measurements show that the Eu ions are in the divalent state. All these compounds show an antiferromagnetic transition at 4.2-6.3K. From the positive Weiss constant and the saturation of magnetization for EuLu2O4, it is considered that ferromagnetic chains of Eu2+ are aligned along the b-axis of the orthorhombic unit cell, with neighboring Eu2+ chains antiparallel. When Ln = Gd-Tm, ferromagnetically aligned Eu2+ ions interact with the Ln3+ ions, which would overcome the magnetic frustration of triangularly aligned Ln3+ ions and the EuLn2O4 compounds show a simple antiferromagnetic behavior.
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出版者 |
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Elsevier Inc.
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日付 |
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言語 |
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資源タイプ |
journal article |
出版タイプ |
AM |
資源識別子 |
HDL
http://hdl.handle.net/2115/38901
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関連 |
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isVersionOf
DOI
https://doi.org/10.1016/j.jssc.2009.04.001
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収録誌情報 |
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Journal of Solid State Chemistry
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巻182
号7
開始ページ1624
終了ページ1630
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ファイル |
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コンテンツ更新日時 |
2023-07-26 |