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Journal Article

Kondo effect of single Co adatoms on Cu surfaces

MPS-Authors
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Knorr,  N.
Department Nanoscale Science (Klaus Kern), Max Planck Institute for Solid State Research, Max Planck Society;

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Schneider,  M. A.
Department Nanoscale Science (Klaus Kern), Max Planck Institute for Solid State Research, Max Planck Society;

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Diekhöner,  L.
Department Nanoscale Science (Klaus Kern), Max Planck Institute for Solid State Research, Max Planck Society;

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Wahl,  P.
Former Research Groups, Max Planck Institute for Solid State Research, Max Planck Society;
Department Nanoscale Science (Klaus Kern), Max Planck Institute for Solid State Research, Max Planck Society;

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Kern,  K.
Department Nanoscale Science (Klaus Kern), Max Planck Institute for Solid State Research, Max Planck Society;

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Citation

Knorr, N., Schneider, M. A., Diekhöner, L., Wahl, P., & Kern, K. (2002). Kondo effect of single Co adatoms on Cu surfaces. Physical Review Letters, 88(9): 096804.


Cite as: https://hdl.handle.net/21.11116/0000-000E-E3DB-B
Abstract
The Kondo resonance of Co adatoms on the Cu(100) and Cu(111)
surfaces has been studied by scanning tunneling spectroscopy.
We demonstrate the scaling of the Kondo temperature T-K with
the host electron density at the magnetic impurity. The
quantitative analysis of the tunneling spectra reveals that the
Kondo resonance is dominated by the Cu bulk electrons. While at
the Cu(100) surface both tunneling into the hybridized
localized state and into the substrate conduction band
contribute to the Kondo resonance, the latter channel is found
to be dominant for Cu(111).