TY - JOUR
T1 - Crystal-field splitting in CeB6 observed by ultrahigh-resolution photoemission spectroscopy
AU - Souma, S.
AU - Kumigashira, H.
AU - Ito, T.
AU - Sato, T.
AU - Takahashi, T.
AU - Kunii, S.
N1 - Funding Information:
The authors thank Prof. Y. Kuramoto and Prof. O. Sakai for their useful discussion. H.K.,T.I., and T.S. thank the Japan Society for the Promotion of Science for financial support. This work was supported by grant from the Ministry of Education, Science and Culture of Japan.
PY - 2001/3
Y1 - 2001/3
N2 - We report ultrahigh-resolution (ΔE = 8 meV) photoemission spectroscopy on CeB6 to study the electronic structure and the crystal-field splitting. The photoemission spectrum of CeB6 near EF shows two prominent structures; a broad one near EF and a relatively sharp peak at 280 meV. The former is ascribed to the `Kondo resonance peak' at EF while the latter being from the spin-orbit satellite (Ce 4f7/2). In the broad structure near EF, we clearly observed an additional small structure around 60 meV from EF. Numerical simulations based on the single-impurity Anderson model with non-crossing approximation show that this satellite is due to the crystal-field splitting (Γ8-Γ7) of the Ce 4f5/2 state.
AB - We report ultrahigh-resolution (ΔE = 8 meV) photoemission spectroscopy on CeB6 to study the electronic structure and the crystal-field splitting. The photoemission spectrum of CeB6 near EF shows two prominent structures; a broad one near EF and a relatively sharp peak at 280 meV. The former is ascribed to the `Kondo resonance peak' at EF while the latter being from the spin-orbit satellite (Ce 4f7/2). In the broad structure near EF, we clearly observed an additional small structure around 60 meV from EF. Numerical simulations based on the single-impurity Anderson model with non-crossing approximation show that this satellite is due to the crystal-field splitting (Γ8-Γ7) of the Ce 4f5/2 state.
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U2 - 10.1016/S0368-2048(00)00384-4
DO - 10.1016/S0368-2048(00)00384-4
M3 - Conference article
AN - SCOPUS:0035278397
SN - 0368-2048
VL - 114-116
SP - 729
EP - 734
JO - Journal of Electron Spectroscopy and Related Phenomena
JF - Journal of Electron Spectroscopy and Related Phenomena
T2 - 8th International Conference on Electronic Spectroscopy and Structure (ICESS-8)
Y2 - 8 August 2000 through 12 August 2000
ER -