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

S. Danzenbächer·Yu. Kucherenko·M. Heber·D. V. Vyalikh·S. L. Molodtsov·V. D. P. Servedio·C. Laubschat
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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.

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S. Danzenbächer, Yu. Kucherenko, M. Heber, D. V. Vyalikh, S. L. Molodtsov, V. D. P. Servedio, C. Laubschat. 2005-06-08. Wave-vector dependent intensity variations of the Kondo peak in photoemission from CePd$_3$. https://doi.org/10.1103/physrevb.72.033104

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