Magnetic Field Induced 4f Octupole in CeB6 Probed by Resonant X-Ray Diffraction
Physical Review Letters 103 巻 1 号
017203-1-017203-4 頁
2009-07-02 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Magnetic Field Induced 4f Octupole in CeB6 Probed by Resonant X-Ray Diffraction
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| 作成者 |
Yonemura Takumi
Kunimori Keisuke
Iga Fumitoshi
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| 収録物名 |
Physical Review Letters
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| 巻 | 103 |
| 号 | 1 |
| 開始ページ | 017203-1 |
| 終了ページ | 017203-4 |
| 抄録 |
A mysterious antiferroquadrupolar ordered phase of CeB6 is considered as originating from the T xyz -type magnetic octupole moment in magnetic fields. By resonant x-ray diffraction, we have verified that the T xyz -type octupole is indeed induced in the 4f orbital of Ce with a propagation vector (1/2, 1/2, 1/2), thereby supporting the theory. We observed an asymmetric field dependence of the intensity for an electric quadrupole (E2) resonance when the field was reversed and extracted a field dependence of the octupole by utilizing the interference with an electric dipole (E1) resonance. The result is in good agreement with that of the NMR-line splitting, which reflects the transferred hyperfine field at the boron nucleus from the anisotropic spin distribution of Ce with an O xy -type quadrupole.
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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 | 2009-07-02 |
| 権利情報 |
Copyright (c) 2009 The 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 |
[ISSN] 0031-9007
[NCID] AA00773679
[DOI] 10.1103/PhysRevLett.103.017203
[DOI] http://dx.doi.org/10.1103/PhysRevLett.103.017203
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