1998/08/15 by M. P. Anantram, T. R. Govindan · 1 citation
Materials Science · Physics and Astronomy · #Carbon Nanotubes in Composites #Graphene research and applications #Thermal properties of materials #cond-mat
paper · pdf · doi:10.1103/physrevb.58.4882
published as Physical Review B volume 58, page 4882 (1998)
openalex publication_date 1998/08/15 · arxiv created 1998/09/18 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the conductance of carbon nanotube wires in the presence of disorder, in the limit of phase-coherent transport. For this purpose, we have developed a simple numerical procedure to compute transmission through carbon nanotubes and related structures. Two models of disorder are considered, weak uniform disorder and isolated strong scatterers. In the case of weak uniform disorder, our simulations show that the conductance is not significantly affected by disorder when the Fermi energy is close to the band center. Further, the transmission around the band center depends on the diameter of these zero band-gap wires. We also find that the calculated small bias conductance as a function of the Fermi energy exhibits a dip when the Fermi energy is close to the second subband minima. In the presence of strong isolated disorder, our calculations show a transmission gap at the band center, and the corresponding conductance is very small.