Transmission electron features revised: Quantum Field Theoretical considerations

E.D. CABANILLAS; DIEGO JULIO CIRILO

ADVANCED STUDIES IN THEORETICAL PHYSICS

HIKARI LTD

Año: 2010 vol. 4 p. 511 - 524

1313-1311

In this work we discuss several aspects of the behaviour of the electrons in the interaction withthe material scattered. The interpretation of the physical phenomena is helped through the TEMobservation of di¤raction microphotographs. From the pure quantum mechanical point of viewwe use the well known Born approximation to obtain the wave amplitude in a simple form inorder to understand the problem roughly: electronic and probe features before the interaction, atthe moment and after the interaction. Introducing the quantum ?eld theoretical approach, theconstruction of new theoretical models that have account on the electron-phonon interaction incristalline and amorphous samples is explicitly made. The comparison with the pure quantummechanical results obtained previously and other models in the literature is brie?y discussed.