First-principles calculation of the single impurity surface Kondo resonance

Chiung-Yuan Lin*, A. H. Castro Neto, B. A. Jones

*Corresponding author for this work

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

We perform first-principles calculations of the surface and bulk wave functions of the Cu(111) surface and their hybridization energies to a Co adatom, including the potential scattering from the Co. By analyzing the calculated hybridization energies, we find the bulk states dominate the contribution to the Kondo temperature, in agreement with recent experiments. Furthermore, we also calculate the tunneling conductance of a scanning tunneling microscope and compare our results with recent experiments of Co impurities in the Cu(111) surface. Good quantitative agreement is found at short parallel impurity-tip distances (<6Å). Our results indicate the need for a new formulation of the problem at larger distances.

Original languageEnglish
Article number156102
JournalPhysical Review Letters
Volume97
Issue number15
DOIs
StatePublished - 17 Oct 2006

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