LO-phonon-assisted cyclotron resonance in a special asymmetric hyperbolic-type quantum well

Abstract

This paper is devoted to the study of the phonon-assisted cyclotron resonance (PACR) in a special asymmetric hyperbolic-type (SAsH) quantum well, in which the two-photon absorption process and the electron–LO-phonon interaction have been included. The PACR effect has been investigated through considering the magneto-optical absorption coefficient (MOAC) and the full-width at half maximum (FWHM). Our results showed that it is better to investigate MOAC and FWHM when the a-parameter value of the quantum well is in the range from 9.72 nm to 37.14 nm. The threshold energy decreases non-linearly with the a-parameter but increases linearly with the magnetic field. The resonant peaks caused by the emission phonon process are observed significantly. MOAC gives red-shift with the increase of a-parameter, gives blue-shift with the rise of magnetic field, but unchanged with the change of temperature, while MOAC's intensities increase with the increase of these three parameters. FWHM decreases with the rise of a-parameter but increases with the growth of temperature and magnetic field in both the emission and absorption phonon processes.