The electronic transport properties of monolayer graphene have been studied before and after the deposition of a dilute coating of tungsten adatoms on the surface. For coverages up to 2.5\% of a monolayer, we find tungsten adatoms simultaneously donate electrons to graphene and reduce the carrier mobility, impacting the zero- and finite-field transport properties. Two independent transport analyses suggest the adatoms lie nearly 1 nm above the surface. The presence of adatoms is also seen to impact the low field magnetoresistance, altering the signatures of weak localization.
@article{arxiv.1610.09342,
title = {Electronic transport and scattering times in tungsten-decorated graphene},
author = {Jamie A. Elias and Erik A. Henriksen},
journal= {arXiv preprint arXiv:1610.09342},
year = {2017}
}
Comments
19 pages, 4 figures; fixed figure sizes and captions