Location of Repository

Mixed-valence behavior and strong correlation effects of metal phthalocyanines adsorbed on metals

By S. Stepanow, P. S. Miedema, A. Mugarza, G. Ceballos, P. Moras, J. C. Cezar, C. Carbone, F. M. F. de Groot and P. Gambardella


We investigate the hierarchy of local correlation and hybridization effects in metal-organic molecules adsorbed on metals. Using x-raymagnetic circular dichroism and ligand field multiplet calculations, we demonstrate that the 3d electronic ground state of monolayer metal-phthalocyanine (CoPc, FePc) on Au(111) is given by the coherent superposition of two charge states, d(n)E + d(n+1), where E represents a substrate electron antiferromagnetically coupled to the central metal ion and d(n) the many-body ionic orbital configuration of the unperturbed molecule. These results differ from previous models of hybrid metal-organic systems and provide a consistent description of their magnetic moments and Kondo physics in terms of spin and orbital multiplicity

Year: 2011
OAI identifier: oai:dspace.library.uu.nl:1874/308579
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://dspace.library.uu.nl:80... (external link)
  • Suggested articles

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.