Abstract
Crystals of the ternary compound FeIn2S4 are grown by directional crystallization of a melt (the horizontal Bridgman method). Composition of the crystals and their crystal structure are determined. Magnetic properties of the FeIn2S4 crystals are studied in the temperature range 4–310 K in magnetic fields of 0–140 kOe. It is shown that the crystals under study are paramagnets up to ∼12 K and their specific magnetic moment monotonically increases with decreasing temperature. The antiferromagnetic character of indirect interactions between Fe2+ cations is established. The most probable causes and the mechanism of the formation of the magnetic state in the FeIn2S4 crystals are discussed.
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