Abstract
Abstract The effect of interdiffusion of Al and Ga atoms on confining potential, band structure and electromagnetic radiation's absorption coefficient of three dimensional superlattice, composed of initially spherical GaAs/Ga 1− x Al x As quantum dots is investigated in the framework of the modified Wood–Saxson potential model. It is shown that the interdiffusion leads to the disappearance of quantum dots’ spherical symmetry, to the widening of the energy minibands and to the significant decrease in the interband absorption coefficient. The obtained results indicate the opportunity to take into account the interdiffusion in the calculations of different characteristics of superlattices.
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