143 citations · 768 across the 20 of their papers we have counts for
18 papers · 1 filter
Direct signatures of -level hybridization and dimerization in magnetic adatom chains on a superconductor
Lisa M. Rütten, Eva Liebhaber, Gael Reecht +2
Magnetic adatom chains on superconductors provide a platform to explore correlated spin states and emergent quantum phases. Using low-temperature scanning tunneling spectroscopy, w…
Wave-function engineering on superconducting substrates: Chiral Yu-Shiba-Rusinov molecules
Lisa M. Rütten, Harald Schmid, Eva Liebhaber +6
Magnetic adatoms on superconductors give rise to Yu-Shiba-Rusinov (YSR) states that hold considerable interest for the design of topological superconductivity. Here, we show that Y…
Yu-Shiba-Rusinov bands in a self-assembled kagome lattice of magnetic molecules
Laetitia Farinacci, Gael Reecht, Felix von Oppen +1
Kagome lattices constitute versatile platforms for studying paradigmatic correlated phases. While molecular self-assembly of kagome structures on metallic substrates is promising,…
Variations of vibronic states in densely-packed structures of molecules with intramolecular dipoles
Sergey Trishin, Christian Lotze, Johanna Richter +5
Electrostatic potentials strongly affect molecular energy levels and charge states, providing the fascinating opportunity of molecular gating. Their influence on molecular vibratio…
Quantum spins and hybridization in artificially-constructed chains of magnetic adatoms on a superconductor
Eva Liebhaber, Lisa M. Rütten, Gaël Reecht +5
Magnetic adatom chains on surfaces constitute fascinating quantum spin systems. Superconducting substrates suppress interactions with bulk electronic excitations but couple the ada…
Interfering tunneling paths through magnetic molecules on superconductors: Asymmetries of Kondo and Yu-Shiba-Rusinov resonances
Laëtitia Farinacci, Gelavizh Ahmadi, Michael Ruby +5
Magnetic adsorbates on superconductors induce a Kondo resonance outside and Yu-Shiba-Rusinov (YSR) bound states inside the superconducting energy gap. When probed by scanning tunne…
Monolayers of MoS on Ag(111) as decoupling layers for organic molecules: resolution of electronic and vibronic states of TCNQ
Asieh Yousofnejad, Gaël Reecht, Nils Krane +2
The electronic structure of molecules on metal surfaces is largely determined by hybridization and screening by the substrate electrons. As a result, the energy levels are signific…
Vibrational excitation mechanism in tunneling spectroscopy beyond the Franck-Condon model
Gaël Reecht, Nils Krane, Christian Lotze +3
Vibronic spectra of molecules are typically described within the Franck-Condon model. Here, we show that highly resolved vibronic spectra of large organic molecules on a single lay…
Mapping the perturbation potential of metallic and dipolar tips in tunneling spectroscopy on MoS
Nils Krane, Christian Lotze, Nils Bogdanoff +4
Scanning tunneling spectroscopy requires the application of a potential difference between the sample and a tip. In metal-vacuum-metal junctions, one can safely assume that the pot…
-Radical Formation by Pyrrolic H Abstraction of Phthalocyanine Molecules on Molybdenum Disulfide
Gael Reecht, Nils Krane, Christian Lotze +1
For a molecular radical to be stable, the environment needs to be inert. Furthermore, an unpaired electron is less likely to react chemically, when it is placed in an extended orbi…
Yu-Shiba-Rusinov states in the charge-density modulated superconductor NbSe2
Eva Liebhaber, Sergio Acero Gonzalez, Rojhat Baba +6
NbSe is a remarkable superconductor in which charge-density order coexists with pairing correlations at low temperatures. Here, we study the interplay of magnetic adatoms and t…
Tuning the coupling of an individual magnetic impurity to a superconductor: quantum phase transition and transport
Laëtitia Farinacci, Gelavizh Ahmadi, Gaël Reecht +6
The exchange scattering at magnetic adsorbates on superconductors gives rise to Yu-Shiba-Rusinov (YSR) bound states. Depending on the strength of the exchange coupling, the magneti…
Disentangling electron- and electric field-induced ring-closing reactions in a diarylethene derivative on Ag(111)
Gaël Reecht, Christian Lotze, Dmytro Sysoiev +2
Using scanning tunneling microscopy and spectroscopy we investigate the adsorption properties and ring-closing reaction of a diarylethene derivative (C5F-4Py) on a Ag(111) surface.…
Imaging isodensity contours of molecular states with STM
Gaël Reecht, Benjamin Heinrich, Hervé Bulou +3
We present an improved way for imaging the local density of states with a scanning tunneling microscope, which consists in mapping the surface topography while keeping the differen…
Narrow-line single-molecule transducer between electronic circuits and surface plasmons
Michael C. Chong, Gaël Reecht, Hervé Bulou +4
A molecular wire containing an emitting molecular center is controllably suspended between the plasmonic electrodes of a cryogenic scanning tunneling microscope. Passing current th…
Pulling and Stretching a Molecular Wire to Tune its Conductance
Gaël Reecht, Hervé Bulou, Fabrice Scheurer +5
A scanning tunnelling microscope is used to pull a polythiophene wire from a Au(111) surface while measuring the current traversing the junction. Abrupt current increases measured…
Electroluminescence from a polythiophene molecular wire suspended in a plasmonic scanning tunneling microscope junction
Gaël Reecht, Fabrice Scheurer, Virginie Speisser +3
The electroluminescence of a polythiophene wire suspended between two metallic electrodes is probed using a scanning tunneling microscope. Under positive sample voltage, the spectr…
Oligothiophene nano-rings as electron resonators for whispering gallery modes
Gaël Reecht, Hervé Bulou, Fabrice Scheurer +4
Structural and electronic properties of oligothiophene nano-wires and rings synthesized on a Au(111) surface are investigated by scanning tunneling microscopy. The spectroscopic da…