CdGa₂S₄MGa₂S₄ (M = Zn and Mg) Systems

V. A. Isaev^a, A. G. Avanesov^a, and V. N. Serezhkin^b

^a Kuban State University, ul. Karla Libknekhta 9, Krasnodar, 350640 Russia

^b Samara State University, Samara, Russia

Received May 21, 2007

Abstract—A phase microdiagram of the system CdSGa₂S₃ in the CdGa₂S₃ homogeneous region was con-
structed, and the composition corresponding to congruent melting was determined (Cd_0.498Ga_1.004S_2.004). A frag-
ment of the CdGa₂S₄ZnGa₂S₄ phase diagram was studied, and the solid solution composition suitable for grow-
ing homogeneous single crystals with respect to the isotropic wavelength ₀ within 492.7–532 nm was deter-
mined. A CdGa₂S₄MgGa₂S₄ phase diagram was constructed, and the isotropic wavelength was studied as a
function of magnesium prevalence in cadmium thiogallate. Magnesium and zinc codoping produces gyrotropic
single crystals suitable for manufacturing optical elements of filtering devices with ₀ within 492.7–880 nm.

DOI: 10.1134/S0036023608070255

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