Possible Kondo resonance in PrFe4P12 studied by bulk-sensitive photoemission

Details Possible Kondo resonance in PrFe4P12 studied by bulk-sensitive photoemission Possible Kondo resonance in PrFe4P12 studied by bulk-sensitive photoemission

2002-08-21

arxiv.org/abs/cond-mat/0208406v2

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages(camera ready format), 4 figures, ReVTeX4

Scientific paper

Pr 4f electronic states in Pr-based filled skutterudites PrT4X12(T=Fe and Ru; X=P and Sb) have been studied by high-resolution bulk-sensitive Pr 3d-4f resonance photoemission. A very strong spectral intensity is observed just below the Fermi level in the heavy-fermion system PrFe4P12. The increase of its intensity at lower temperatures is observed. We speculate that this is the Kondo resonance of Pr, the origin of which is attributed to the strong hybridization between the Pr 4f and the conduction electrons.

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