Abstract
Raman scattering spectra of ternary semiconductor alloys GaP1−xSbx and InP1−xSbx have been investigated in the spectral region from 150 to 450 cm−1 at room temperature. The optical phonons of both GaP1−xSbx and InP1−xSbx exhibit ‘‘two-mode’’ behavior over the whole composition range. A random element isodisplacement model is used to describe the behavior of the optical phonons of both alloy systems. The calculations of the dependence of the long-wavelength optical phonon frequencies on the composition are in good agreement with the experimental results.
Published Version
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