In this study, we report results of a self-consistent calculation obtained
for the sub-band structure of Si delta -doped GaAs material by using a new
alternative method. We will discuss the influence of the delta -doping conc
entration and the delta -layer thickness on the sub-band structure for a no
n-uniform distribution, which is taken as different from the known Gaussian
distribution. The confining potential, the sub-band energies, the sub-band
occupations, and the Fermi energy have been calculated by solving the Schr
odinger and Poisson equations by using the Airy functions self-consistently
.