Transmission electron features revisited: Quantum Field, Theoretical considerations

Abstract

In this work we discuss several aspects of the behaviour of the electrons in the interaction with the material scattered. The interpretation of the physical phenomena is helped through the TEM observation of diffraction microphotographs. From the pure quantum mechanical point of view we use the well known Born approximation to obtain the wave amplitude in a simple form in order to understand the problem roughly: electronic and probe features before the interaction, at the moment and after the interaction. Introducing the quantum field theoretical approach, the construction of new theoretical models that have account on the electron-phonon interaction in cristalline and amorphous samples is explicitly made. The comparison with the pure quantum mechanical results obtained previously and other models in the literature is briefly discussed.