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Report No.

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

Shimada, Kenya*; Namatame, Hirofumi*; Taniguchi, Masaki*; Higashiguchi, Mitsuharu*; Fujimori, Shinichi   ; Saito, Yuji  ; Fujimori, Atsushi; Kim, M. S.*; Hirata, Daisuke*; Takabatake, Toshiro*

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 ($$E$$$$_{rm F}$$) 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.



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Category:Physics, Condensed Matter



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