FIELD: solid-state physic.
SUBSTANCE: silver thiogallate (AgGaS2) single crystal are obtained by melt directional crystallization under gas pressure of above 20 atm in sealed quartz ampoule. Claimed material has absorption coefficient of λ = 0.1 cm in whole transparency spectral range.
EFFECT: optically homogeneous materials without cracks and polysynthetic twinned crystals.
3 cl, 1 ex
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