Scientists have been able to demonstrate that graphene
nanostructures can be generated by annealing of a nanostructured
silicon carbide crystal for a few years. “These two-dimensional,
spatially strongly restricted carbon bands exhibit a vanishingly
small electrical resistance even at room temperature. They are thus
ballistic,” explains Prof. Dr. Christoph Tegenkamp, Head of the
Professorship of Solid Surfaces Analysis at Chemnitz University of
Technology. Something similar does not happen, for example, with an
expanded and perfectly two-dimensional layer of
graphene.
