Kondo Effect and Surface-State Electrons

L. Limot; R. Berndt

doi:10.1016/j.apsusc.2004.07.023

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arXiv · cond-mat/0312434

Kondo Effect and Surface-State Electrons

L. Limot·R. Berndt

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Abstract

We have used low temperature scanning tunneling spectroscopy and atomic manipulation to study the role of surface-state electrons in the Kondo effect of an isolated cobalt atom adsorbed on Ag(111). We show that the observed Kondo signature remains unchanged in close proximity of a monoatomic step, where the local density of states of the surface-state electrons is strongly perturbed. This result indicates a minor role for surface-state electrons in the Kondo effect of cobalt, compared to bulk electrons. A possible explanation for our findings is presented.

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L. Limot, R. Berndt. 2003-12-17. Kondo Effect and Surface-State Electrons. https://doi.org/10.1016/j.apsusc.2004.07.023

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