High-resolution photoemission study of CeRhX (X Sn, In)

The Ce 4f-derived states in CeRhX (X Sn and In) were directly examined by means of high-resolution 3d–4f resonance photoemission spectroscopy. Compared with the Kondo metal CePtSn, which has a low Kondo temperature, CeRhX has a strong Ce 4f 1 weight near the Fermi level ( E F) and has a weak Ce 4f 0...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2006-05, Vol.378, p.791-792
Main Authors: Shimada, K., Namatame, H., Taniguchi, M., Higashiguchi, M., Fujimori, S.-I., Saitoh, Y., Fujimori, A., Kim, M.S., Hirata, D., Takabatake, T.
Format: Article
Language:English
Subjects:
CePhIn
CePhSn
Clean metal, semiconductor, and insulator surfaces
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron and ion emission by liquids and solids
impact phenomena
Electron states
Exact sciences and technology
Narrow-band systems
intermediate-valence solids
Photoemission and photoelectron spectra
Photoemission spectroscopy
Physics
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Summary:The Ce 4f-derived states in CeRhX (X Sn and In) were directly examined by means of high-resolution 3d–4f resonance photoemission spectroscopy. Compared with the Kondo metal CePtSn, which has a low Kondo temperature, CeRhX has a strong Ce 4f 1 weight near the Fermi level ( E F) and has a weak Ce 4f 0 peak, indicating a strong valence fluctuation. The Ce 4f 1 spectral features indicate that the c-f hybridization strength in CeRhSn is weaker than that in CeRhIn.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2006.01.289