Abstract
A theory for the tunneling of electrons through a one dimensional barrier of length embedded with -wells is presented. Fora periodic arrangement of -wells, 100% transmission through a barrier can occur via transmission modes with effective wavelengths approximate to 2 for = 1 to = -1. An additional broad transmission band is also shown to occur for -well coupling strengths that cause the overall, spatially averaged potential to vanish. Even for random arrangements of -wells within a barrier, nearly perfect transmission is predicted for the lowest transmission bands (i.e., largest ). Numerical calculations also demonstrate that -wells within a 1D barrier increase conductance over a wider range of barrier heights relative to the conductance through a 1D barrier without -wells.