Kondo effect and conductance of nanocontacts with magnetic impurities

Details Kondo effect and conductance of nanocontacts with magnetic impurities Kondo effect and conductance of nanocontacts with magnetic impurities

2009-03-06

arxiv.org/abs/0903.1274v2

Phys. Rev. Lett. 103, 016803 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

accepted for publication in Phys. Rev. Lett.; replaced with accepted version of manuscript; 5 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.103.016803

We study the impact of dynamical correlations on the electronic structure and coherent transport properties of Cu nanocontacts hosting a single magnetic impurity (Ni,Co,Fe) in the contact region. The strong dynamical correlations of the impurity 3d-electrons are fully taken into account by combining density functional calculations with a dynamical treatment of the impurity 3d-shell in the one-crossing approximation. We find that dynamical correlations give rise to the Kondo effect and lead to Fano features in the coherent transport characteristics similar to those observed in related experiments.

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