Kondo effect of single Co adatoms on Cu surfaces

N Knorr*, MA Schneider, L Diekhoner, P Wahl, K Kern

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

218 Citations (Scopus)

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).

Original languageEnglish
Article number096804
Number of pages4
JournalPhysical Review Letters
Volume88
Issue number9
DOIs
Publication statusPublished - 4 Mar 2002

Keywords

  • SCANNING TUNNELING SPECTROSCOPY
  • SCATTERING
  • RESONANCE
  • IMPURITY

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