2004/09/15 by M. Alexander Schneider, M. A. Schneider, Peter Wahl +9 · 16 citations
Chemistry · Physics and Astronomy · #Advanced Chemical Physics Studies #Chemistry #Condensed matter physics #Crystallography #Impurity #Kondo effect #Materials science #Metal #Monolayer #Nanotechnology #Noble metal #Physics #Quantum and electron transport phenomena #Scanning tunneling microscope #Scanning tunneling spectroscopy #Single crystal #Substrate (aquarium) #Surface and Thin Film Phenomena #cond-mat.str-el
paper · pdf · doi:10.1143/jjap.44.5328
published in Japanese Journal of Applied Physics 44(7S), 5328 (Institute of Physics) · 4 pages, 3 figures
arxiv created 2004/09/15 · openalex publication_date 2005/07/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The Kondo temperature T K of single Co adatoms on monolayers of Ag on Cu and Au(111) is determined using Scanning Tunneling Spectroscopy. T K of Co on a single monolayer of Ag on either substrate is essentially the same as that of Co on a homogenous Ag(111) crystal. Besides giving strong evidence that the interaction of surface Kondo impurities with the substrate is very local in nature the data show that the energy scale of the many-electron Kondo state is insensitive to the properties of surface states and to the energetic position of the projected bulk band edges. We demonstrate that the trend of the Kondo temperature of Co adatoms is correlated to the impurity's d-band shift as obtained from the Hammer and Nørskovs model of reactivity neglecting many-body effects.