%0 Journal Article
%T Local Kondo temperatures in atomic chains
%A Ricardo Agundez
%A Joe Salfi
%A Sven Rogge
%A Miriam Blaauboer
%J Physics
%D 2014
%I arXiv
%R 10.1103/PhysRevB.91.041117
%X We study the effect of disorder in strongly interacting small atomic chains. Using the Kotliar- Ruckenstein slave-boson approach we diagonalize the Hamiltonian via scattering matrix theory. We numerically solve the Kondo transmission and the slave-boson parameters that allow us to calculate the Kondo temperature. We demonstrate that in the weak disorder regime, disorder in the energy levels of the dopants induces a non-screened disorder in the Kondo couplings of the atoms. We show that disorder increases the Kondo temperature of a perfect chain. We find that this disorder in the couplings comes from a local distribution of Kondo temperatures along the chain. We propose two experimental setups where the impact of local Kondo temperatures can be observed.
%U http://arxiv.org/abs/1408.6447v2