volume | PIER Journals

Abstract

The electronic structure of finite parabolic GaAs/Al_xGa_1-xAs superlattices is studied. A detailed analysis of the miniband formation is given and the importance of all system parameters is discussed. The dependence of the equidistant miniband separation on the superlattice size is revealed. A comparison with different theoretical methods and experimental data is presented. The calculations are conducted in the framework of the semi-empirical sp³s^* tight-binding model including spin applying the Green function formalism and the Surface Green Function Matching Method (SGFM) method.

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Dr. Isaac Rodríguez-Vargas

Dr. O. Y. Sanchez-Barbosa

Dr. David Armando Contreras-Solorio

Professor Stoyan Vlaev