Kondo effect of molecular complexes at surfaces: Ligand control of the local spin coupling

P Wahl*, L Diekhoner, G Wittich, L Vitali, MA Schneider, K Kern

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

119 Citations (Scopus)

Abstract

The spin state of single magnetic atoms and molecules at surfaces is of fundamental interest and may play an important role in future atomic-scale technologies. We demonstrate the ability to tune the coupling between the spin of individual cobalt adatoms with their surroundings by controlled attachment of molecular ligands. The strength of the coupling is determined via the Kondo resonance by low-temperature scanning tunneling spectroscopy. Spatial Kondo resonance mapping is introduced as a novel imaging tool to localize spin centers in magnetic molecules with atomic precision.

Original languageEnglish
Article number166601
Number of pages4
JournalPhysical Review Letters
Volume95
Issue number16
DOIs
Publication statusPublished - 14 Oct 2005

Keywords

  • VIBRATIONAL SPECTROSCOPY
  • MAGNETIC IMPURITY
  • MICROSCOPY
  • SCATTERING
  • RESONANCE
  • ATOM

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