Abstract
Single crystals of Cd 1− x Mn x InGaS 4 and MnIn 2−2 x Ga 2 x S 4 were grown by a vapor phase technique, the resulting crystals appeared as yellow and yellow-brown plates. X-ray power diffraction data could be indexed following the structure of a polytype of ZnIn 2 S 4 structure. The characterization of the crystals was done by optical absorption and magnetic susceptibility measurements as a function of temperature. The energy gap for the different compounds at room temperature is in the range: 2.1–2.4 eV. The magnetic susceptibility data show a predominant antiferromagnetic interaction between the manganese ions down to 2 K.
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