Abstract—
We have synthesized Fe1 – xAgxCr2S4 (0 < x < 0.5) solid solutions via doping of the FeCr2S4 thiochromite with silver. From a break in the composition dependence of the unit-cell parameter for the synthesized materials, the solid solution series has been shown to be limited by x = 0.22. The magnetic properties of the solid solutions have been studied at temperatures from 4 to 300 K in a magnetic field H = 3980 A/m (50 Oe). All of the materials have been shown to be ferrimagnets with a Curie temperature rising with silver concentration: from 185 K at x = 0 to 203 K at x = 0.22. We have determined saturation magnetic moments of the solid solutions and proposed a model that accounts for their observed magnetic properties.
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This work was supported by the Russian Federation Ministry of Science and Higher Education (state research target for the Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, in the field of basic research).
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Aminov, T.G., Shabunina, G.G. & Busheva, E.V. Synthesis and Magnetic Properties of Silver-Doped Iron Dichromium Tetrasulfide. Inorg Mater 56, 771–778 (2020). https://doi.org/10.1134/S0020168520080014
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DOI: https://doi.org/10.1134/S0020168520080014