Electronic structure of semiconducting CeFe$_4$P$_{12}$: Strong hybridization and relevance of single-impurity Anderson model

Semiconducting skutterudite CeFe $_{4}$ P $_{12}$ is investigated by synchrotron x-ray photoemission spectroscopy (PES) and x-ray absorption spectroscopy (XAS). Ce 3 $d$ core-level PES and 3 $d - 4 f$ XAS, in combination with single impurity Anderson model (SIAM) calculations, confirm features due to $f^{0}$ , $f^{1}$ and $f^{2}$ configurations. The Ce 4 $f$ density of states (DOS) indicates absence of a Kondo resonance at Fermi level, but can still be explained by SIAM with a small gap in non- $f$ DOS. While Ce 4 $f$ partial DOS from band structure calculations are also consistent with the main Ce 4 $f$ DOS, the importance of SIAM for core and valence spectra indicates Kondo semiconducting mixed valence for CeFe $_{4}$ P $_{12}$ , derived from strong hybridization between non- $f$ conduction and Ce 4 $f$ DOS.

Electronic structure of semiconducting CeFe $_{4}$ P $_{12}$ : Strong hybridization and relevance of single-impurity Anderson model

文献摘要

讨论

讲解博客

AI智能校验

Electronic structure of semiconducting CeFe $_{4}$ P $_{12}$ : Strong hybridization and relevance of single-impurity Anderson model

文献摘要

讨论

讲解博客

AI智能校验

Electronic structure of semiconducting CeFe44​P1212​: Strong hybridization and relevance of single-impurity Anderson model

文献摘要

讨论

|讲解博客

|AI智能校验

Electronic structure of semiconducting CeFe44​P1212​: Strong hybridization and relevance of single-impurity Anderson model

文献摘要

讨论

|讲解博客

|AI智能校验

Electronic structure of semiconducting CeFe $_{4}$ P $_{12}$ : Strong hybridization and relevance of single-impurity Anderson model

讲解博客

AI智能校验

Electronic structure of semiconducting CeFe $_{4}$ P $_{12}$ : Strong hybridization and relevance of single-impurity Anderson model

讲解博客

AI智能校验