Simulation of gate-controlled coulomb blockades in carbon nanotubes

The single-electronic transport and Coulomb blockade of several designed carbon nanotube models were studied. The effects of the gate electrode were considered to reveal more abundant transport features of nanotubes. The orthodox theory used a kinetic equation to describe the alteration of the occupation distribution of the charging states in the tubes. The average current was obtained from the probabilities and the forward and backward tunneling rates of the junctions.