A New Layered Chalcogenide in the System NiIn2S4-NiIn2Se4
نویسنده
چکیده
The system (1 – x)NiIn2S4 xNiIn2Se4 has been investigated by X-ray powder methods. The subsolidus phase diagram is constructed in the temperature interval 600 -1000 þC. The spinel type NiIn2S4 exhibits a phase width up to the composition NiIn2S2Se2 at 900 þC and NiIn2S2:8Se1:2 at 600 þC. A new layered compound is formed for 0.7 ÿ xÿ 0.5 at 600 þC and for x = 0.6 at 900 þC which crystallizes in the MgAl2S4-type with a = 392.4 and c = 3739.6 pm (x = 0.6) for the hexagonal cell.
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