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Identifying Kondo orbitals through spatially resolved STS
Author(s) -
Antipov Andrey E.,
Ribeiro Pedro,
Kroha Johann,
Kirchner Stefan
Publication year - 2013
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201200936
Subject(s) - condensed matter physics , local density of states , atomic orbital , scanning tunneling spectroscopy , physics , scanning tunneling microscope , degenerate energy levels , degrees of freedom (physics and chemistry) , kondo effect , spin (aerodynamics) , electron , molecular physics , quantum mechanics , thermodynamics
Abstract We study the influence of angular degrees of freedom of magnetic adatoms on metallic surfaces onto scanning tunneling spectra. Kondo scattering of electrons off the adatom changes the local density of states near the Fermi level. The spatial dependence of this correction is set by the orbital structure of the local moment localized on the adatom. By considering a multilevel Anderson model with non‐degenerate orbitals of differing orbital structure, we demonstrate that the spatial dependence of the scanning tunneling spectrum contains sufficient information to infer the orbital degrees of freedom of the magnetic adatom.