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

Citations Over TimeTop 10% of 2011 papers

Abstract

We investigate the hierarchy of local correlation and hybridization effects in metal-organic molecules adsorbed on metals. Using x-ray magnetic circular dichroism and ligand field multiplet calculations, we demonstrate that the 3$d$ 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.

Related Papers

• → Investigation of Ion Dependence of Electronic Structure for 3d3 Ions in Mg₂TiO₄ Based on First-Principles Calculations(2013)17 cited
• → Correspondence between the three-form and a non-minimal multiplet in supersymmetry(2008)4 cited
• → Correlation and multiplet hole theory of core-electron energy splittings in transition-metal ions(2009)15 cited
• → The $$ \mathcal{N} $$ = 3 Weyl multiplet in four dimensions(2019)1 cited