Abstract

Raman spectra in (┴, ┴) and (║, ║) polarizations are investigated on crystals of CuGaS2, AgGaS2 compounds and CuxAgl−xGaS2 solid solutions. The frequencies of longitudinal and transverse optical phonons are determined, their concentration dependences are constructed, and the behavior of the vibrational modes in CuxAgl−xGaS2 solid solutions is established.

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