Polar optical phonons at $GaAs|A{l}_{(x)}G{a}_{(1-x)}As$ interfaces: influence of the concentration of Al

A. E. Chubykalo, D. A. Contreras-Solorio, M. E. Mora-Ramos

We study long-wavelength polar optical modes at semiconductor interfaces of GaAs|Al_{(x)}Ga_{(1-x)}As and take into account influence of the Al concentration. We have considered tw…