Inelastic Light Scattering in Zinc Germanium Diphosphide Crystals

The inelastic light scattering spectra of chalcopyrite structure ZnGeP 2 crystals grown by an improved low temperature crystallization from the nonstoichiometric solution of this compound in the liquid Bi or liquid Tl solutions as well as grown by high temperature Bridgman technique has been investigated together with the optical absorption and electron transport measurements.