Crystal structure as well as magnetic and thermoelectric properties of the quaternary Fe_1-xMn_xIn₂S₄ thiospinel were investigated. A complete homogeneity range between FeIn₂S₄ and MnIn₂S₄ was confirmed by powder X-ray diffraction phase analysis supported by a linear increase of the cubic unit-cell parameter for greater Mn content, obeying Vegard's law. Rietveld refinement revealed a gradual decrease of the inversion parameter i upon incorporation of Mn into the structure, which indicated a change from inverse spinel (for FeIn₂S₄) to nearly-normal spinel (for MnIn₂S₄). This quaternary compound is an n-type semiconductor with high electrical resistivity ρ > 5 × 10⁻⁴ Ω m and Seebeck coefficient |α| > 250 μV K⁻¹ above RT. The thermal conductivity followed a compositional dependence typical for solid solutions and thus revealed a minimum for samples with 0.4 < x ≤ 0.8. The power factor and thermoelectric figure of merit monotonously decreased for greater Mn content within the quaternary compound. All samples showed magnetic transitions below 12 K with antiferromagnetic interactions. The determined effective magnetic moments corresponded to values for Fe²⁺ and Mn²⁺ ions.

研究了四元Fe _{1- x} Mn _x In ₂ S ₄硫代松油的晶体结构以及磁和热电性能。通过粉末X射线衍射相分析证实了FeIn ₂ S ₄和MnIn ₂ S ₄之间的完全均匀性范围，该分析由立方单位晶胞参数线性增加以支持更大的Mn含量，遵循维格德定律。Rietveld精炼显示，将Mn掺入结构后，反型参数i逐渐减小，这表明与反尖晶石有关（FeIn ₂ S ₄）到接近正常的尖晶石（对于MnIn ₂ S ₄）。该四元化合物是具有高电阻率ρ  > 5×10 ^-4Ωm 和塞贝克系数|的n型半导体。α | 高于RT > 250μVK ^-1。导热系数遵循固溶体的典型成分依赖性，因此对于0.4 <  x ≤0.8。随着四元化合物中锰含量的增加，功率因数和热电性能因数单调降低。所有样品均显示在12 K以下具有反铁磁相互作用的磁跃迁。所确定的有效磁矩对应于Fe ²⁺和Mn ²⁺离子的值。