Possible Kondo resonance in PrFe4P12 studied by bulk-sensitive photoemission

A. Yamasaki; S. Imada; T. Nanba; A. Sekiyama; H. Sugawara; H. Sato; C. Sekine; I. Shirotani; H. Harima; S. Suga

doi:10.1103/PhysRevB.70.113103

Possible Kondo resonance in PrFe4P12 studied by bulk-sensitive photoemission

Strongly Correlated Electrons 2023-06-02 v2 Materials Science

Authors: A. Yamasaki , S. Imada , T. Nanba , A. Sekiyama , H. Sugawara , H. Sato , C. Sekine , I. Shirotani , H. Harima , S. Suga

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Abstract

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.

Keywords

Kondo resonance PrFe4P12 filled skutterudites resonance photoemission heavy fermion Pr 4f states

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@article{arxiv.cond-mat/0208406,
  title  = {Possible Kondo resonance in PrFe4P12 studied by bulk-sensitive photoemission},
  author = {A. Yamasaki and S. Imada and T. Nanba and A. Sekiyama and H. Sugawara and H. Sato and C. Sekine and I. Shirotani and H. Harima and S. Suga},
  journal= {arXiv preprint arXiv:cond-mat/0208406},
  year   = {2023}
}

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

Possible Kondo resonance in PrFe4P12 studied by bulk-sensitive photoemission

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