214 citations · 1.7k across the 38 of their papers we have counts for
14 papers · 1 filter
Spin excitation of Co atoms at monatomic Cu chains
Neda Noei, Roberto Mozara, Ana M. Montero +7
The zero-bias anomaly in conductance spectra of single Co atoms on Cu(111) observed at 4 K, which has been interpreted as being due to a Kondo resonance, is strongly modi…
Resonance-enhanced vibrational spectroscopy of molecules on a superconductor
Jan Homberg, Alexander Weismann, Troels Markussen +1
Molecular vibrational spectroscopy with the scanning tunneling microscope is feasible but usually detects few vibrational modes. We harness sharp Yu-Shiba-Rusinov (YSR) states obse…
Current shot noise in atomic contacts: Fe and FeH between Au electrodes
Michael Mohr, Alexander Weismann, Dongzhe Li +2
Single Fe atoms on Au(111) surfaces were hydrogenated and dehydrogenated with the Au tip of a low-temperature scanning tunneling microscope (STM). Fe and FeH were contacted wit…
Spin dependent transmission of Nickelocene-Cu contacts probed with shot noise
Michael Mohr, Manuel Gruber, Alexander Weismann +4
The current through nickelocene molecules and its noise are measured with a low temperature scanning tunneling microscope on a Cu(100) substrate. Density functional theory calc…
Conductance channels of a platform molecule on Au(111) probed with shot noise
Michael Mohr, Torben Jasper-Toennies, Thomas Frederiksen +4
The shot noise of the current through junctions to single trioxatriangulenium cations (TOTA) on Au(111) is measured with a low temperature scanning tunneling microscope usi…
Quantum Coherent Multielectron Processes in an Atomic Scale Contact
Peter-Jan Peters, Fei Xu, Kristen Kaasbjerg +3
The light emission from a scanning tunneling microscope operated on a Ag(111) surface at 6 K is analyzed from low conductances to values approaching the conductance quantum. Optica…
The Kondo Resonance Line Shape in Scanning Tunnelling Spectroscopy: Instrumental Aspects
Manuel Gruber, Alexander Weismann, Richard Berndt
In the scanning tunnelling microscope, the many-body Kondo effect leads to a zero-bias feature of the differential conductance spectra of magnetic adsorbates on surfaces. The intri…
Interactions between two C60 molecules measured by scanning probe microscopies
Nadine Hauptmann, César González, Fabian Mohn +3
C60-functionalized tips are used to probe C60 molecules on Cu(111) with scanning tunneling and atomic force microscopy. Distinct and complex intramolecular contrasts are found. Max…
Shifting the Voltage Drop in Electron Transport through a Single Molecule
Sujoy Karan, David Jacob, Michael Karolak +5
A Mn-porphyrin was contacted on Au(111) in a low-temperature scanning tunneling microscope (STM). Differential conductance spectra show a zero-bias resonance that is due to an unde…
Scanning Tunneling Spectroscopy of Ni/W(110): bcc and fcc properties in the second atomic layer
Johannes Schöneberg, Alexander Weismann, Richard Berndt
Nickel islands are grown on W(110) at elevated temperatures. Islands with a thickness of two layers are investigated with scanning tunneling microscopy. Spectroscopic measurements…
Force and Conductance during contact formation to a C60 molecule
Nadine Hauptmann, Fabian Mohn, Leo Gross +3
Force and conductance were simultaneously measured during the formation of Cu-C60 and C60-C60 contacts using a combined cryogenic scanning tunneling and atomic force microscope. Th…
Passing current through touching molecules
Guillaume Schull, Thomas Frederiksen, Mads Brandbyge +1
The charge flow from a single C60 molecule to another one has been probed. The conformation and electronic states of both molecules on the contacting electrodes have been character…
Quantum modulation of the Kondo resonance of Co adatoms on Cu/Co/Cu(100)
Takashi Uchihashi, Jianwei Zhang, Joerg Kroeger +1
Low-temperature scanning tunneling spectroscopy reveals that the Kondo temperature T_K of Co atoms adsorbed on Cu/Co/Cu(100) multilayers varies between 60 K and 134 K as the Cu fil…
Two-Electron Photon Emission From Metallic Quantum Wells
Germar Hoffmann, Richard Berndt, Peter Johansson
Unusual emission of visible light is observed in scanning tunneling microscopy of the quantum well system Na on Cu(111). Photons are emitted at energies exceeding the energy of the…