82 citations · 220 across the 6 of their papers we have counts for
6 papers
Local Gating of an Ir(111) Surface Resonance by Graphene Islands
S. J. Altenburg, J. Kröger, T. O. Wehling +3
The influence of graphene islands on the electronic structure of the Ir(111) surface is investigated. Scanning tunneling spectroscopy (STS) indicates the presence of a two-dimensio…
Two-Site Kondo Effect in Atomic Chains
N. Néel, R. Berndt, J. Kröger +3
Linear CoCu_nCo clusters on Cu(111) are fabricated by means of atomic manipulation. They represent a two-site Kondo system with tunable interaction. Scanning tunneling spectroscopy…
Kondo effect of a Co atom on Cu(111) in contact with an Fe tip
N. Neel, J. Kroeger, R. Berndt
Single Co atoms, which exhibit a Kondo effect on Cu(111), are contacted with Cu and Fe tips in a low-temperature scanning tunneling microscope. With Fe tips, the Kondo effect persi…
Controlling the Kondo Effect in CoCu_n Clusters Atom by Atom
N. Neel, J. Kroeger, R. Berndt +3
Clusters containing a single magnetic impurity were investigated by scanning tunneling microscopy, spectroscopy, and ab initio electronic structure calculations. The Kondo temperat…
Molecular Orbital Shift of Perylenetetracarboxylic-Dianhydride
J. Kroeger, H. Jensen, R. Berndt +2
Using low-temperature scanning tunneling microscopy we find that perylenetetracarboxylic-dianhydride on Au(788) exhibits three coexisting adsorption phases. Single-molecule tunneli…
Phase coherence length and quantum interference patterns at step edges
S Crampin, J Kroeger, H Jensen +1
The accepted approximation used to describe quantum interference patterns at steps is shown to be incorrect. As a result, electron lifetimes determined using it are in error by a f…