Thursday 1.7.2010, 15:15-16:15 SE 4.


Long range Kondo signatures probed with STM

R.G.Ulbrich

University of Göttingen

We report on long range signatures in scanning tunneling spectroscopy of individual magnetic impurities (Fe, Co) embedded below a Cu(100) surface. The interpretation of the observed Fano-like features centered around the Fermi-energy is based (i) on the focussing properties of the copper band structure and (ii) on many-body (NRG) calculations in the framework of the single-impurity Anderson model. We find good agreement with the experimental data.
(Work done together with H.Prüser, M.Wenderoth, A.Weismann, P.Dagel, R.Peters and T.Pruschke).