Magnetic Field Induced 4f Octupole in CeB6 Probed by Resonant X-Ray Diffraction
Physical Review Letters Volume 103 Issue 1
Page 017203-1-017203-4
published_at 2009-07-02
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| File | |
| Title ( eng ) |
Magnetic Field Induced 4f Octupole in CeB6 Probed by Resonant X-Ray Diffraction
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| Creator |
Yonemura Takumi
Kunimori Keisuke
Iga Fumitoshi
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| Source Title |
Physical Review Letters
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| Volume | 103 |
| Issue | 1 |
| Start Page | 017203-1 |
| End Page | 017203-4 |
| Abstract |
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 |
Physics [ 420 ]
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
American Physical Society
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| Date of Issued | 2009-07-02 |
| Rights |
Copyright (c) 2009 The American Physical Society
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[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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