Abstract:
Single crystals of the ternary compound FeIn$_2$Se$_4$ are grown by directional crystallization of the melt. The composition and structure of the single crystals are determined. The local states of iron ions in this compound are studied by nuclear $\gamma$-resonance spectroscopy in transmission configuration. The temperature and field dependences of a specific magnetic moment for the ternary compound FeIn$_2$Se$_4$ are measured in the temperature range 4–310 K in magnetic fields of 0–140 kOe. The reasons and mechanisms for magnetic state formation in single crystals of the obtained compound are discussed.