Abstract
The influence of composition on the energy band structure, mechanical properties, acoustic velocities, and optical phonon frequencies of the GaxIn1−xPySbzAs1−y−z alloy lattice matched to the InP substrate has been studied. To investigate the electronic structure and mechanical characteristics of the alloy under consideration, the empirical pseudo-potential method (EPM) was used. In this study, we consider the virtual crystal approximation (VCA). A good agreement between our results and the widely accessible published values was obtained. Our findings will serve as a crucial source for the next works. It has not been thoroughly investigated how composition affects the mechanical properties, optical phonon frequencies, and acoustic velocities of the researched alloys. Consequently, we were interested in these properties as they were affected by composition.
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