1 research outputs found
Charge Transport through Graphene Junctions with Wetting Metal Leads
Graphene is believed to be an excellent candidate material
for
next-generation electronic devices. However, one needs to take into
account the nontrivial effect of metal contacts in order to precisely
control the charge injection and extraction processes. We have performed
transport calculations for graphene junctions with wetting metal leads
(metal leads that bind covalently to graphene) using nonequilibrium
Green’s functions and density functional theory. Quantitative
information is provided on the increased resistance with respect to
ideal contacts and on the statistics of current fluctuations. We find
that charge transport through the studied two-terminal graphene junction
with Ti contacts is pseudo-diffusive up to surprisingly high energies