Elastic properties of epitaxial ZnSe(001) films on GaAs measured by Brillouin spectroscopy

Abstract
Brillouin scattering experiments have been performed on a series of epitaxially grown ZnSe (001) films on GaAs (001) of thicknesses between 0.23 and 2.0 μm. No thickness‐dependent modifications of the elastic constants have been found. The obtained room‐temperature values of C11=87.0, C12=54.7, and C44=39.1 GPa are in good agreement with literature values of ZnSe bulk material. The calculation of the theoretical cross sections shows a good agreement with the experimental data.