Mapping Itinerant Electrons around Kondo Impurities
arXiv:1204.2971 · doi:10.1103/PhysRevLett.108.166604
Abstract
We investigate single Fe and Co atoms buried below a Cu(100) surface using low temperature scanning tunneling spectroscopy. By mapping the local density of states of the itinerant electrons at the surface, the Kondo resonance near the Fermi energy is analyzed. Probing bulk impurities in this well-defined scattering geometry allows separating the physics of the Kondo system and the measuring process. The line shape of the Kondo signature shows an oscillatory behavior as a function of depth of the impurity as well as a function of lateral distance. The oscillation period along the different directions reveals that the spectral function of the itinerant electrons is anisotropic.
arXiv comment5 pages, 4 figures, accepted by Physical Review Letters
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Cited by in corpus (13)
- Interplay between Kondo effect and Ruderman-Kittel-Kasuya-Yosida interaction
- Spin Manipulation by Creation of Single-Molecule Radical Cations
- The Kondo Resonance Line Shape in Scanning Tunnelling Spectroscopy: Instrumental Aspects
- Kondo conductance across the smallest spin 1/2 radical molecule
- Orbital signatures of Fano-Kondo line shapes in STM adatom spectroscopy
- Shifting the Voltage Drop in Electron Transport through a Single Molecule
- Strong correlation effects in theoretical STM studies of magnetic adatoms
- Friedel oscillations induced by magnetic skyrmions: from scattering properties to all-electrical detection
- Unusual Kondo physics in a Co impurity atom embedded in noble-metal chains
- Single-Co Kondo effect in atomic Cu wires on Cu(111)
- Scanning Tunneling Spectroscopy of Subsurface Ag and Ge Impurities in Copper
- Dimensionality effects in the LDOS of ferromagnetic hosts probed via STM: spin-polarized quantum beats and spin filtering
- Distinct effect of Kondo physics on crystal field splitting in electron and spin spectroscopies