Towards a microscopic description of dimer adsorbates on metallic surfaces
arXiv:0808.3158 · doi:10.1209/0295-5075/85/47002
Abstract
Despite the experimental successes of Scanning Tunneling Microscopy (STM) and the interest in more complex magnetic nanostructures, our present understanding and theoretical description of STM spectra of magnetic adatoms is mainly phenomenological and most often ignores many-body effects. Here, we propose a theory which includes a microscopic description of the wave functions of the substrate and magnetic adatoms together with quantum many-body effects. To test our theory, we have computed the STM spectra of magnetic Cobalt monomers and dimers adsorbed on metallic Copper surfaces and succesfully compared our results to recent available experimental data.
4 pages, 2 figures, discussion of calculation of RKKY interaction and connection to NRG included. Extended discussion on calculations of the one-electron parameters of Anderson model. Typos corrected
References in corpus (13)
- The numerical renormalization group method for quantum impurity systems
- Theory of the Fano Resonance in the STM Tunneling Density of States due to a Single Kondo Impurity
- Exchange interaction between single magnetic adatoms
- Nonequilibrium theory of scanning tunneling spectroscopy via adsorbate resonances: nonmagnetic and Kondo impurities
- Theory of Scanning Tunneling Spectroscopy of a Magnetic Adatom on a Metallic Surface
- RKKY and magnetic field interactions in coupled Kondo quantum dots
- Kondo screening in a magnetically frustrated nanostructure: Exact results on a stable, non-Fermi-liquid phase
- Simple model for scanning tunneling spectroscopy of noble metal surfaces with adsorbed Kondo impurities
- First-principles Calculation of the Single Impurity Surface Kondo Resonance
- Exotic Kondo effect from magnetic trimers
- Role of surface states in STM spectroscopy of (111) metal surfaces with Kondo adsorbates
- Microscopic Theory of the Single Impurity Surface Kondo Resonance
- Adsorbed 3d transition metal atoms and clusters on Au(111):Signatures derived from one electron calculations