2003/12/17 by L. Limot, Richard Berndt, R. Berndt
Chemistry · Engineering · Physics and Astronomy · #Advanced Chemical Physics Studies #Atom (system on chip) #Atomic physics #Chemistry #Cobalt #Condensed matter physics #Electron #Inorganic chemistry #Kondo effect #Kondo insulator #Materials science #Molecular Junctions and Nanostructures #Nuclear magnetic resonance #Physics #Quantum and electron transport phenomena #Quantum mechanics #Quantum tunnelling #Scanning tunneling microscope #Scanning tunneling spectroscopy #Spectroscopy #X-ray photoelectron spectroscopy #cond-mat
paper · pdf · doi:10.1016/j.apsusc.2004.07.023
4 pages, 4 figures, ACSIN-7 proceedings
arxiv created 2003/12/17 · openalex publication_date 2004/09/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.