Effective Length Of Quantum Confinement And Polaron Effect In A GaAs Film Deposited On Al_(0.3)Ga_(0.7)As Substrate

摘要

The polaron confined in a GaAs film deposited on Al_(0.3)Ga_(0.7)As substrate are investigated by using the framework of the fractional-dimensional space approach. The numerical results for the polaron binding energy and effective mass as functions of the film thickness for different substrate thickness are obtained. It is shown that the polaron binding energy as a function of the film thickness for different values of substrate thickness has complicated structure for the narrow and medium film thickness.