CHINESE PHYSICS B, vol.25, no.5, 2016 (SCI-Expanded)
A theoretical study of resonant tunneling is carried out for an inverse parabolic double-barrier structure subjected to an
external electric field. Tunneling transmission coefficient and density of states are analyzed by using the non-equilibrium
Green’s function approach based on the finite difference method. It is found that the resonant peak of the transmission
coefficient, being unity for a symmetrical case, reduces under the applied electric field and depends strongly on the variation
of the structure parameters.