Abstract: | Structure and Magnetic Properties of Cs2Mn3S4 and Cs2Co3S4 The atomic arrangements of the isotypic compounds Cs2Mn3S4 and Cs2Co3S4 were determined by X-ray investigations on single crystals (space group Ibam, Z = 4). To interprete the magnetic properties of Cs2Mn3S4 mixed crystals of the series Cs2(MnxZn1-x)3S4 have been examined. Additionally neutron diffraction experiments were carried out and yielded the spin structures of Cs2Mn3S4 and Cs2Co3S4 (Shubnikov space group Ibam'). The deviations of the magnetic moments from those expected for high-spin d5 ions are explained by means of crystal field calculations. |