| speaker: | Laurent Limot IEAP, CAU zu Kiel, Kiel, Germany |
| time: | We. 09.04.03, 9:00 - 9:50 |
In recent years, Scanning Tunnelling Microscopy (STM) and Spectroscopy (STS) have been used to image, manipulate and acquire the local density of state of adatoms on the surface of metals. Unlike non-magnetic adatoms, the tunnelling spectra obtained on and near some magnetic adatoms like Ce or Co yield a characteristic Fano line around the Fermi energy which is the signature of the Kondo effect. In this talk we will #introduce some general features encountered in STS studies of the Kondo effect: the origin of the Kondo-Fano line, the influence of the substrate and the Kondo effect in a two adatom system.