Impact of organic capping layer on the magnetic anisotropy of ultrathin Co films
arXiv:1711.03858 · doi:10.1088/1361-6463/aa9308
Abstract
Using combined magnetometry and ferromagnetic resonance studies, it is shown that introduction of a hydrocarbon cover layer leads to an increase of the contribution of the surface anisotropy to the effective magnetic anisotropy energy of hexagonal close-packed 0001 cobalt films, largely enhancing the perpendicular anisotropy. Due to a weak electronic interaction of the organic molecules with the Co atoms, an increase of surface anisotropy could be explained by the presence of an electric field at the organic-material/Co interface and by modification of surface atoms charge configuration.
References in corpus (5)
- Unravelling the role of the interface for spin injection into organic semiconductors
- Sensitive SQUID magnetometry for studying nano-magnetism
- Perpendicular magnetic anisotropy of cobalt films intercalated under graphene
- Energy Shift and Wavefunction Overlap of Metal-Organic Interface-States
- Model potential for the description of metal/organic interface states