Calculation of thermoelastic stresses in ribbon gallium oxide crystals grown from a melt by the Stepanov method (EFG) in various crystallographic orientations

In this work, we investigated the effect of anisotropy on the distribution of thermoelastic stresses in thin crystalline gallium oxide plates. Approximate formulas for the components of the stress tensor are given, obtained using the asymptotic integration of the thermoelasticity equations taking into account rectilinear anisotropy of a general form. A comparison of stress values for two growth directions was carried out. It is shown that choosing the orientation of the growth direction makes it possible to control the magnitude and distribution of thermoelastic stresses that arise in gallium oxide crystals when they are grown from a melt.