Affiliation:
1. Department of Physics, University of Cambridge , CB3 0HE Cambridge, United Kingdom
Abstract
The recently computed result for charge density penetrating into the barrier region of a capped (5,5) carbon nanotube in zero applied field is compared with the analysis of Kohn and Mattsson for a narrow region near the Fermi equipotential. The decrease of charge density with distance into the barrier is found to be faster for the computed result, possibly resulting from a limitation in the density functional used.
Subject
Materials Chemistry,Electrical and Electronic Engineering,Surfaces, Coatings and Films,Process Chemistry and Technology,Instrumentation,Electronic, Optical and Magnetic Materials