A tunable two-impurity Kondo system in an atomic point contact

@article{Bork2011ATT,
  title={A tunable two-impurity Kondo system in an atomic point contact},
  author={J. Bork and Y. Zhang and L. Diekhoner and L. Borda and P. Simon and Johann Kroha and P. Wahl and K. Kern},
  journal={Nature Physics},
  year={2011},
  volume={7},
  pages={901-906}
}
  • J. Bork, Y. Zhang, +5 authors K. Kern
  • Published 2011
  • Physics
  • Nature Physics
  • At low temperatures and separated by sufficient distances, magnetic impurities embedded in non-magnetic metals lose their magnetic nature. But when two such atoms are brought close together, it reappears. By varying the distance between two cobalt atoms with a scanning tunnelling microscope, the quantum phase transition between these two states can be explored. 

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    Two-Impurity Kondo Physics
    Kondo Resonance of a Co Atom Exchange Coupled to a Ferromagnetic Tip.
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