(The Effect of Layer On Both Polaron Energy and its Effective Mass on thin Crystal Layer)

Abstract

In this research, we have conducted a theoretetical study of the effect of the thickness of the studied layer (the middle layer in which the polaron is located) on the basic energy expression qf studied polaron in an isotopic crystal layer, we have also conducted a study of effect the thickness of this layer on the value of the effective mass of the polaron in asystem consisting of three thin layer in contact. assuming that the medium surrounding the layer on the both sidesis summetrical