Because of its nanoscale cross-section, electrons propagate only along the tube's axis. As a result, carbon nanotubes are frequently referred to as one-dimensional conductors. The maximum electrical conductance of a single-walled carbon nanotube is 2G0, where G0 = 2e2/h is the conductance of a single ballistic quantum channel.
because of its nanoscale cross-section electrons propagate only along the tube's axis as a result carbon nanotubes are frequently referred to as one-dimensional conductors the maximum electrical conductance of a single-walled carbon nanotube is 2g0 where g0 = 2e2/h is the conductance of a single ballistic quantum channel