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- Madrid Institute for Advanced StudiesES71 papers
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3 papers · 2 filters
Spatially resolved electronic inhomogeneities of graphene due to subsurface charges
Andres Castellanos-Gomez, Roel H. M. Smit, Nicolás Agraït +1
We probe the local inhomogeneities in the electronic properties of exfoliated graphene due to the presence of charged impurities in the SiO2 substrate using a combined scanning tun…
Atomically thin mica flakes and their application as ultrathin insulating substrates for graphene
Andres Castellanos-Gomez, Magdalena Wojtaszek, Nikolaos Tombros +3
We show that it is possible to deposit, by mechanical exfoliation on SiO2/Si wafers, atomically thin mica flakes down to a single monolayer thickness. The optical contrast of these…
Carbon tips as electrodes for single-molecule junctions
Andres Castellanos-Gomez, Stefan Bilan, Linda A. Zotti +4
We study electron transport through single-molecule junctions formed by an octanethiol molecule bonded with the thiol anchoring group to a gold electrode and the opposing methyl en…