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arxiv 0903.1274 v2 pith:W4BB5JPA submitted 2009-03-06 cond-mat.mes-hall cond-mat.str-el

Kondo effect and conductance of nanocontacts with magnetic impurities

D. Jacob , K. Haule , G. Kotliar This is my paper
classification cond-mat.mes-hall cond-mat.str-el
keywords dynamicalcorrelationsimpuritycoherenteffectkondomagneticnanocontacts
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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