Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2009-04-22
Phys. Rev. Lett., 103, 017203 (2009).
Physics
Condensed Matter
Strongly Correlated Electrons
5 pages, 4 figures, submitted
Scientific paper
CeB6, a typical Gamma_8-quartet system, exhibits a mysterious antiferroquadrupolar ordered phase in magnetic fields, which is considered as originating from the T_{xyz}-type magnetic octupole moment induced by the field. By resonant x-ray diffraction in magnetic fields, 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. The field-reversal method used in the present study opens up the possibility of being widely applied to other multipole ordering systems such as NpO2, Ce_{x}La_{1-x}B_{6}, SmRu_{4}P_{12}, and so on.
Iga Fumitoshi
Kunimori Keisuke
Matsumura Takeshi
Sera Masafumi
Yonemura Takumi
No associations
LandOfFree
Magnetic-Field-Induced 4f-Octupole in CeB6 Probed by Resonant X-ray Diffraction does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Magnetic-Field-Induced 4f-Octupole in CeB6 Probed by Resonant X-ray Diffraction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic-Field-Induced 4f-Octupole in CeB6 Probed by Resonant X-ray Diffraction will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-274601