Abstract:
It is shown that, contrary to all previously studied systems, heating to ∼800 K in the C60− TaS2 monolayer-Ta(100) adsorption system leads to the complete removal of the deposited fullerene molecules. A model is proposed that explains the observed phenomenon by a very weak nonchemisorption interaction between the C60 molecules and the valence-saturated surface of tantalum disulfide that forms layered crystals with van der Waals interaction between layers.