Refined x-ray diffraction patterns of the at room temperature for (a) , (b) , and (c) , respectively. The Bragg factors and the structure factors were under 5%.
Temperature dependence of inverse susceptibility in FC magnetization under 5 T and Fe concentration value dependence of frustration factor for polycrystalline .
Mössbauer spectra of at 4.2 K and Néel temperature for (a) , (b) , and (c) , respectively.
Reduced magnetic hyperfine fields for (, 0.01) as a function of the reduced temperature . The solid line represents the reduced magnetization calculated from Brillouin function for , 3/2, and 2 for with (a) , (b) , and , respectively.
Lattice parameter (, ), bond lengths from Fe, Ni to S , magnetic hyperfine field , electric quadrupole splitting , isomer shift , Curie–Weiss temperature , and Néel temperature for .
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