Wave-vector dependent intensity variations of the Kondo peak in photoemission from CePd$_3$

Details Wave-vector dependent intensity variations of the Kondo peak in photoemission from CePd$_3$ Wave-vector dependent intensity variations of the Kondo peak in photoemission from CePd$_3$

2005-06-08

arxiv.org/abs/cond-mat/0506202v1

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1103/PhysRevB.72.033104

Strong angle-dependent intensity variations of the Fermi-level feature are observed in 4d - 4f resonant photoemission spectra of CePd$_3$(111), that reveal the periodicity of the lattice and largest intensity close to the Gamma points of the surface Brillouin zone. In the framework of a simplified periodic Anderson model the phenomena may quantitatively be described by a wave-vector dependence of the electron hopping matrix elements caused by Fermi-level crossings of non-4f-derived energy bands.

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