▎ 摘　　要

We used scanning tunneling microscopy (STM) experiments performed under ultrahigh vacuum conditions at low temperature (5 K) to analyze the adsorption of Xe monolayers on graphene grown on Pt(111) surfaces. For submonolayer coverages, Xe forms ordered compact islands on graphene/Pt(111). Atomically resolved images have been obtained, displaying an hexagonal order with periodicities similar to those obtained in Xe on graphite surfaces, i.e., 0.43 nm. Moreover, honeycomb-like superstructures with much higher periodicities can be observed at a large scale, in close resemblance to those obtained in Xe on graphite, where they have been related to hexagonal domains separated by domain walls of an incommensurate structure. More interestingly, the influence of graphene moire patterns on the Xe structure has been thoroughly investigated. Our STM data unambiguously demonstrate that although there is no strong influence of these moire patterns on the commensurate-incommensurate ordering of the Xe overlayer, the electronic or topographic corrugation of the moire can be observed through the Xe layer for high periodicity and highly corrugated moires. This effect has not been reported before on the adsorption of noble gases on sp(2) carbon surfaces and can be of great interest in the ordering of molecules or atoms separated from the carbon substrate through the insulating Xe overlayer.