Single 3 transition metal atoms on multi-layer graphene systems: electronic configurations, bonding mechanisms and role of the substrate
arXiv:1404.7617 · doi:10.1088/1367-2630/16/6/062001
Abstract
The electronic configurations of Fe, Co, Ni, and Cu adatoms on graphene and graphite have been studied by x-ray magnetic circular dichroism and charge transfer multiplet theory. A delicate interplay between long-range interactions and local chemical bonding is found to influence the adatom equilibrium distance and magnetic moment. The results for Fe and Co are consistent with purely physisorbed species having, however, different 3-shell occupancies on graphene and graphite ( and , respectively). On the other hand, for the late 3 metals Ni and Cu a trend towards chemisorption is found, which strongly quenches the magnetic moment on both substrates.
7 pages, 4 figures
References in corpus (14)
- The electronic properties of graphene
- Suspended Graphene: a bridge to the Dirac point
- Perspective: Advances and challenges in treating van der Waals dispersion forces in density functional theory
- Tunneling Spin Injection into Single Layer Graphene (Supplementary Information)
- Tunneling Spin Injection into Single Layer Graphene
- Electron states of mono- and bilayer graphene on SiC probed by STM
- Localized Magnetic States in Graphene
- Scanning tunneling spectroscopy of inhomogeneous electronic structure in monolayer and bilayer graphene on SiC
- Few layers graphene on 6H-SiC(000-1): an STM study
- Adatoms and clusters of 3d transition metals on graphene: Electronic and magnetic configurations
- Localized Magnetic States of Fe, Co, and Ni Impurities on Alkali Metal Films
- Tuning Kondo physics in Graphene with gate voltage
- Adsorption of cobalt on graphene: Electron correlation effects from a quantum chemical perspective
- Graphene adhesion on mica: Role of surface morphology