Tunneling into a single magnetic atom: Spectroscopic evidence of the Kondo resonance

V. Madhavan, W. Chen, T. Jamneala, M. F. Crommie, N. S. Wingreen

Research output: Contribution to journalArticlepeer-review

885 Scopus citations


The Kondo effect arises from the quantum mechanical interplay between the electrons of a host metal and a magnetic impurity and is predicted to result in local charge and spin variations around the magnetic impurity. A cryogenic scanning tunneling microscope was used to spatially resolve the electronic properties of individual magnetic atoms displaying the Kondo effect. Spectroscopic measurements performed on individual cobalt atoms on the surface of gold show an energetically narrow feature that is identified as the Kondo resonance - the predicted response of a Kondo impurity. Unexpected between the d orbital and conduction electron channels for an electron tunneling into a magnetic atom in a metallic host.

Original languageEnglish (US)
Pages (from-to)567-569
Number of pages3
Issue number5363
StatePublished - Apr 24 1998

All Science Journal Classification (ASJC) codes

  • General


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