Magnetic-field-induced charge order in the filled skutterudite SmRu4P12 : Evidence from resonant and nonresonant x-ray diffraction
Physical Review B 89 巻 16 号
161116-1-161116-5 頁
2014-04-25 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Magnetic-field-induced charge order in the filled skutterudite SmRu4P12 : Evidence from resonant and nonresonant x-ray diffraction
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| 作成者 |
Michimura Shinji
Inami Toshiya
Hayashi Yuya
Fushiya Kengo
Matsuda Tatsuma D.
Higashinaka Ryuji
Aoki Yuji
Sugawara Hitoshi
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| 収録物名 |
Physical Review B
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| 巻 | 89 |
| 号 | 16 |
| 開始ページ | 161116-1 |
| 終了ページ | 161116-5 |
| 抄録 |
The antiferromagnetic ordered phase in SmRu4P12 below the metal-insulator transition at T MI = 16.5 K with an unresolved transition at T∗ ～ 14 K has been studied by resonant and nonresonant x-ray diffraction in magnetic fields. In the intermediate phase, a nonresonant Thomson scattering with q = (1,0,0) is induced by applying a magnetic field, which is presumably caused by atomic displacements reflecting the charge order in the p band, as predicted theoretically [R. Shiina, J. Phys. Soc. Jpn. 82, 083713 (2013)]. Simultaneously, the antiferromagnetic moment of Sm is enhanced along the field direction, which is considered to reflect the staggered ordering of the Γ 7 −Γ 8 crystal-field states (scalar or hexadecapole order). The present results show that the orbital-dependent p-f hybridization in association with the nesting instability in the p band gives rise to the unconventional charge order similarly with PrRu4P12 and PrFe4P12.
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| 内容記述 |
This work was supported by Grants-in-Aid for Scientific Research (No. 21204456, No. 21102515, and No. 2430087) from JSPS and MEXT, and by a Basic Science Research Grant from the Sumitomo Foundation.
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| NDC分類 |
物理学 [ 420 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
American Physical Society
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| 発行日 | 2014-04-25 |
| 権利情報 |
Copyright (c) 2014 American Physical Society
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[NCID] AA11187113
[DOI] 10.1103/PhysRevB.89.161116
[DOI] http://dx.doi.org/10.1103/PhysRevB.89.161116
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