title: Conductance-driven change of the Kondo effect in a single cobalt atom.
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.
authors.affiliation: Institut de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg, CNRS, 67034 Strasbourg, France.
authors.forename: D-J
authors.initials: DJ
authors.lastname: Choi
authors.forename: M V
authors.initials: MV
authors.lastname: Rastei
authors.forename: P
authors.initials: P
authors.lastname: Simon
authors.forename: L
authors.initials: L
authors.lastname: Limot