Scaling of the optical phonon frequency in diamond-like elements and III-V group semiconductor compounds

Abstract

In this work, the homology in the vibrational properties of solids with diamond and zincblende crystal structure is studied. Introducing the Tolpygo´s dimensionless frequency we scale the phonon dispersion curves along high-symmetry directions for diamond-like elements and some III-V semiconductor compounds (AB compounds); also, starting from the diamond-like structure element phonon frequencies, we calculate the optical phonon frequencies for such AB compounds. The agreement between theoretical and experimental data is outstanding considering the simplicity of the calculations needed to obtain these results.