Abstract
Mn1.5AgIn8.0S14 single crystals were grown by Bridgman directed melt crystallization. Their composition and crystal structure were determined. Single crystals crystallized in the cubic spinel structure with lattice constant a = 10.765 ± 0.005 A. The band-gap width of Mn1.5AgIn8.0S14 single crystals was estimated from transmission spectra near the intrinsic absorption edge in the temperature range 10–320 K and decreased with increasing temperature. A function approximating this dependence was obtained.
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