FIELD: solid-state physic, in particular material for far IR-spectrum conversion, quantum generators, communications, information handling, etc.
SUBSTANCE: Claimed material of general formula AgxGaxGe1-xS2, wherein 0.167<=x<=0.37, contains silver, gallium, sulfur, and germanium. Material of present invention unlike, for example, of AgGaS2 has higher double refraction.
EFFECT: material with high non-linearity coefficient, low absorption coefficient in spectral transmission region, and high double refraction.
2 tbl
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