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Phys Rev Lett. 2012 Jun 29;108(26):266803. Epub 2012 Jun 26.

Conductance-driven change of the Kondo effect in a single cobalt atom.

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  • 1Institut de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg, CNRS, 67034 Strasbourg, France.

Erratum in

  • Phys Rev Lett. 2012 Oct 12;109(15):159901.

Abstract

A low-temperature scanning tunneling microscope is employed to build a junction comprising a Co atom bridging a copper-coated tip and a Cu(100) surface. An Abrikosov-Suhl-Kondo resonance is evidenced in the differential conductance and its width is shown to vary exponentially with the ballistic conductance for all tips employed. Using a theoretical description based on the Anderson model, we show that the Kondo effect and the total conductance are related through the atomic relaxations affecting the environment of the Co atom.

PMID:
23005003
[PubMed]
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