Surface electronic structure of Cr(001): Experiment and theory
Year: 2005
Type: article
Abstract: Low-temperature scanning tunneling microscopy and spectroscopy investigations of the atomically clean Cr(001) surface together with density functional and many-body calculations have been used to study the surface electronic structure. The Friedel oscillations near impurity atoms have been observed and explained within the Fermi surface analysis. A very narrow resonance at $26\phantom{\rule{0.3em}{0ex}}\mathrm{meV}$ above the Fermi level has been observed and the orbital character of corresponding state has been visualized. The experimental data together with many-body calculations give further evidence that the observed resonance is an orbital Kondo resonance formed by two degenerated ${d}_{xz},{d}_{yz}$ surface states. This gives evidence of strong correlation effects on transition metal surfaces.
Source: Physical Review B
Institution: Radboud University Nijmegen
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2013337490