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

Abstract

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.

References in corpus (1)

• Low-temperature coherence in the periodic Anderson model: Predictions for photoemission of heavy Fermions

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