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ID 38219
file
creator
Yonemura, Takumi
Kunimori, Keisuke
Iga, Fumitoshi
NDC
Physics
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.
journal title
Physical Review Letters
volume
Volume 103
issue
Issue 1
start page
017203-1
end page
017203-4
date of issued
2009-07-02
publisher
American Physical Society
issn
0031-9007
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2009 The American Physical Society
relation url
department
Graduate School of Advanced Sciences of Matter