Investigation of the electron-acoustic phonon interaction via the deformation and piezoelectric potentials in AlN/GaN resonant tunneling nanostructures. (August 2021)

• Record Type: Journal Article
• Authors: Boyko, I.; Petryk, M.; Fraissard, J.
• Is Part Of: Superlattices and microstructures. Volume 156(2021)
• Publication Date: 2021-08
• Subjects: Acoustic phonon -- Electron-phonon interaction -- Piezoelectric effect -- Deformation potential -- Piezoelectric potential -- Green's function; Superlattices as materials -- Periodicals; Microstructure -- Periodicals; Semiconductors -- Periodicals; Superréseaux -- Périodiques; Microstructure (Physique) -- Périodiques; Semiconducteurs -- Périodiques; 621.38152
• DOI: 10.1016/j.spmi.2021.106928
• Languages: English
• ISSNs: 0749-6036

Abstract

Abstract: The analytical theory of acoustic phonons arising in the layers of a nitride-based nanostructure, taking into account the presence of the piezoelectric effect, was developed. Proposed theory is based on the first obtained exact solutions of the system consisting of equation of motion for a semiconductor medium and Maxwell equation. The theory of the electronic spectrum renormalized by their interaction with acoustic phonons via deformation and piezoelectric potentials was developed using the method of the temperature Green's function and the Dyson equation. Direct calculations of the electron level shifts and their decay rates are performed for geometric and physical parameters of the new experimentally created nanostructure for various temperature values. Graphical abstract: Image 1 Highlights: Investigation of the electron-acoustic phonon interaction mechanisms taking into account piezoelectric effect. Electron-acoustic phonon interaction via the deformation potential in the presence of piezoelectric effect. Electron-acoustic phonon interaction via the piezoelectric potential.