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- W2019044197 abstract "The electronic structure of single crystalline CeNiSn has been investigated using photoemission spectroscopy. The extracted Ce $4f$ spectrum exhibits three peak structures; the typical Fermi level and 2 eV peaks, and another between them, $ensuremath{sim}0.9$ eV below the Fermi level ${E}_{mathrm{F}}.$ The near-${E}_{mathrm{F}}$ peak reflects a substantial Ce $4f$-Sn $mathrm{sp}$ hybridization, whereas the 0.9 eV peak arises from the Ce $4f$-Ni $3d$ and Ce $5d$-Ni $3d$ hybridization. A Ni $3d$ satellite feature is observed about 6 eV below the Ni $3d$ main band, indicating a strong Ni $3d$ Coulomb correlation in CeNiSn. The high-resolution photoemission study indicates a finite metallic density of states at ${E}_{mathrm{F}},$ implying a semimetallic ground state. The electronic states near ${E}_{mathrm{F}}$ are found to have mixed character from the Sn $mathrm{sp}$, Ce $5d$, Ce $4f$, and Ni $3d$ electrons. Constant-initial-state and constant-final-state yield spectra across the $4stackrel{ensuremath{rightarrow}}{d}4f$ threshold indicate the Ce valence to be close to 3+." @default.
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- W2019044197 date "1998-08-15" @default.
- W2019044197 modified "2023-10-02" @default.
- W2019044197 title "Valence-band photoemission study of single crystalline CeNiSn" @default.
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- W2019044197 doi "https://doi.org/10.1103/physrevb.58.4426" @default.
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