The Kondo Resonance Line Shape in Scanning Tunnelling Spectroscopy: Instrumental Aspects
arXiv:1807.09082 · doi:10.1088/1361-648X/aadfa3
Abstract
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 intrinsic line shape of this Kondo resonance and its temperature dependence in principle contain valuable information. We use measurements on a molecular Kondo system, all-trans retinoic acid on Au(111), and model calculations to discuss the role of instrumental broadening. The modulation voltage used for the lock-in detection, noise on the sample voltage, and the temperature of the microscope tip are considered. These sources of broadening affect the apparent line shapes and render difficult a determination of the intrinsic line width, in particular when variable temperatures are involved.
References in corpus (21)
- The role of magnetic anisotropy in the Kondo effect
- Manipulating Kondo Temperature via Single Molecule Switching
- Spin Excitations and Correlations in Scanning Tunneling Spectroscopy
- Tunneling spectroscopy in small grains of superconducting MgB2
- Temperature and magnetic field dependence of a Kondo system in the weak coupling regime
- Manipulation of Kondo Effect via Two-Dimensional Molecular Self-Assembly
- Kondo temperature of magnetic impurities at surfaces
- Long-range Kondo signature of a single magnetic impurity
- On the use of STM superconducting tips at very low temperatures
- Probing Magnetic Excitations and Correlations in Single and Coupled Spin Systems with Scanning Tunneling Spectroscopy
- Spin Manipulation by Creation of Single-Molecule Radical Cations
- Conductance-Driven Kondo Effect in a Single Cobalt Atom
- Spectral function of the Kondo model in high magnetic fields
- The Spin-Polarization of the Split Kondo State
- Mapping Itinerant Electrons around Kondo Impurities
- Sub-molecular modulation of a 4f driven Kondo resonance by surface-induced asymmetry
- Shifting the Voltage Drop in Electron Transport through a Single Molecule
- Kondo Effect and Surface-State Electrons
- Kondo resonance line-shape of magnetic adatoms on decoupling layers
- Kondo effect in binuclear metal-organic complexes with weakly interacting spins
- Scanning microscopies of superconductors at very low temperatures
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- Resolving Ambiguity of the Kondo Temperature Determination in Mechanically Tunable Single-Molecule Kondo Systems
- Observation of biradical spin coupling through hydrogen bonds
- Nonequilibrium Seebeck effect and thermoelectric efficiency of Kondo-correlated molecular junctions
- PTCDA molecular monolayer on Pb thin films: An unusual π-electron Kondo system and its interplay with a quantum-confined superconductor
- Magnetic field dependence of the thermopower of Kondo-correlated quantum dots: Comparison with experiment
- Universal scaling of tunable Yu-Shiba-Rusinov states across the quantum phase transition
- Surface states influence in the conductance spectra of Co adsorbed on Cu(111)
- Theoretical model for multi-orbital Kondo screening in strongly correlated molecules with several unpaired electrons
- Temperature evolution of the Kondo peak beyond Fermi liquid theory
- Electron spin secluded inside a bottom-up assembled standing metal-molecule nanostructure
- Tuning spinaron and Kondo resonances via quantum confinement
- Control of Andreev Reflection via a Single-Molecule Orbital