Artículo
Adsorbed 3d transition-metal atoms and dimers on Au(111): Signatures derived from one-electron calculations
Fecha de publicación:
02/2001
Editorial:
American Physical Society
Revista:
Physical Review B: Condensed Matter and Materials Physics
ISSN:
1098-0121
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The spectroscopic characteristics of systems with adsorbed d impurities on noble metal surfaces should depend on the number and geometric arrangement of the adsorbed atoms and also on their d band filling. Recent experiments using scanning tunneling microscopy (STM) have probed the electronic structure of all 3d transition-metal impurities and also of Co dimers adsorbed on Au(111). In this contribution we correlate those experimental results with ab initio calculations and try to establish necessary conditions for observing a Kondo resonance when using the single-impurity Anderson model. We find that the relevant orbitals at the STM tip position, when it is on top of an impurity, are the d orbitals with m=0 and that the energy of these levels with respect to the Fermi level determines the possibility of observing a spectroscopic feature due to the impurity.
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Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Weissmann, Mariana Dorotea; Llois, Ana Maria; Adsorbed 3d transition-metal atoms and dimers on Au(111): Signatures derived from one-electron calculations; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 63; 11; 2-2001; 1134021-1134023
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