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

@inproceedings{Bork2012ATT,
  title={A tunable two-impurity Kondo system in an atomic point contact},
  author={Jakob Bork and Yao-zhong Zhang and Peter Wahl and K. Kern},
  year={2012}
}
If a magnetic impurity is introduced into a non-magnetic metallic environment, its spin interacts with the conduction electrons of the host. Below a characteristic temperature TK, this leads due to the Kondo effect to a non-magnetic singlet ground state, where the spin of the magnetic impurity is completely screened [1]. As soon as two or more magnetic impurities are in proximity to each other, a competition between Kondo screening and magnetic interaction among the spins sets in and the ground… CONTINUE READING