  In this paper, we report on the charge transport properties of hybrid
nanoparticles (NPs) based on the polymeric 1D compound [Fe(Htrz)2(trz)](BF4),
which is one of the most promising SCO systems for designing electronic
devices. In particular, we used for the first time hybrid SCO NPs covered with
a silica shell and placed in between single-layer graphene electrodes. We
evidence a reproducible thermal hysteresis loop in the conductance above
room-temperature, meaning that no degradation of the current levels has been
detected; we thus conclude that the robustness of the spin-transition is
significantly improved as compared with previous results and with other reports
where even larger assemblies and SCO objects were involved. This bistability
combined with the versatility of graphene represents a promising scenario for a
variety of technological applications but also for future sophisticated
fundamental studies.
