EFFECTS OF CONFINED LO AND SO PHONON MODES ON POLARON IN FREESTANDING CYLINDRICAL QUANTUM WIRE WITH PARABOLIC CONFINEMENT

摘要

The electron self-energy and correction to the electron effective mass in a freestanding quantum wire with parabolic confining potential was investigated by the perturbation approach. Both the electron-confined longitudinal optical (LO) phonon and surface opti- cal (SO) phonon interactions were considered. Results shows that, for small wire radius, the contributions of electron-LO phonon interaction to the electron self-energy and the correction to the electron effective mass are relatively small in compare with those of the electron-SO phonon interaction.