346 citations · 943 across the 10 of their papers we have counts for
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Charge Transport in Disordered Graphene-Based Low Dimensional Materials
Alessandro Cresti, Norbert Nemec, Blanca Biel +4
Two-dimensional graphene, carbon nanotubes and graphene nanoribbons represent a novel class of low dimensional materials that could serve as building blocks for future carbon-based…
Diffusion and localization in carbon nanotubes and graphene nanoribbons
Norbert Nemec, Klaus Richter, Gianaurelio Cuniberti
We study transport length scales in carbon nanotubes and graphene ribbons under the influence of Anderson disorder. We present generalized analytical expressions for the density of…
Modeling extended contacts to nanotube and graphene devices
Norbert Nemec, David Tomanek, Gianaurelio Cuniberti
Carrier injection into carbon nanotubes and graphene nanoribbons, contacted by a metal coating over an arbitrary length, is studied by various means: Minimal models allow for exact…
Hofstadter butterflies of bilayer graphene
Norbert Nemec, Gianaurelio Cuniberti
We calculate the electronic spectrum of bilayer graphene in perpendicular magnetic fields nonperturbatively. To accommodate arbitrary displacements between the two layers, we apply…
Hofstadter butterflies of carbon nanotubes: Pseudofractality of the magnetoelectronic spectrum
Norbert Nemec, Gianaurelio Cuniberti
The electronic spectrum of a two-dimensional square lattice in a perpendicular magnetic field has become known as the Hofstadter butterfly [Hofstadter, Phys. Rev. B 14, 2239 (1976)…
Contact Dependence of Carrier Injection in Carbon Nanotubes: An Ab Initio Study
N. Nemec, D. Tomanek, G. Cuniberti
We combine ab initio density functional theory with transport calculations to provide a microscopic basis for distinguishing between good and poor metal contacts to nanotubes. Comp…
Spin transport in disordered single-wall carbon nanotubes contacted to ferromagnetic leads
S. Krompiewski, N. Nemec, G. Cuniberti
Recent conductance measurements on multi-wall carbon nanotubes (CNTs) reveal an effective behavior similar to disordered single-wall CNTs. This is due to the fact that electric cur…